阅读说明：本技术 一种建筑垃圾填埋堆置点评估方法、装置、设备及介质 (Building garbage landfill stacking point evaluation method, device, equipment and medium ) 是由 李烁 姚嘉胤 袁猛 董伟 丁雪刚 于 2021-09-22 设计创作，主要内容包括：本申请提供了一种建筑垃圾填埋堆置点评估方法、装置、设备及介质,该方法包括：根据待评估填埋堆置点中垃圾的组成成分及理化性质,区分垃圾中的建筑垃圾和非建筑垃圾；根据建筑垃圾对应的污染特征,确定建筑垃圾的评估参数,并根据评估参数,计算建筑垃圾的第一污染强度值；根据建筑垃圾的第一污染强度值以及非建筑垃圾的第二污染强度值,计算待评估填埋堆置点的污染强度综合值；根据待评估填埋堆置点的污染强度综合值满足的评估条件,确定待评估填埋堆置点的评估结果,并根据评估结果制定待评估填埋堆置点的治理方案。本申请对建筑垃圾填埋堆置点的垃圾进行分类处理,提高了对建筑垃圾填埋堆置点评估的准确性,保证了治理方案的针对性。(The application provides a method, a device, equipment and a medium for evaluating building garbage landfill stacking points, wherein the method comprises the following steps: distinguishing construction waste and non-construction waste in the waste according to the composition and physical and chemical properties of the waste in the landfill site to be evaluated; determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameter; calculating a pollution intensity comprehensive value of the landfill site to be evaluated according to the first pollution intensity value of the construction waste and the second pollution intensity value of the non-construction waste; determining an evaluation result of the landfill site to be evaluated according to an evaluation condition which is satisfied by the comprehensive pollution intensity value of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result. The application carries out classification treatment to the rubbish of building rubbish landfill deposit point, has improved the accuracy to building rubbish landfill deposit point aassessment, has guaranteed the pertinence of treatment scheme.)

1. A building garbage landfill site evaluation method is characterized by comprising the following steps:

distinguishing construction waste and non-construction waste in the waste according to the composition and physical and chemical properties of the waste in the landfill site to be evaluated;

determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameter;

calculating a pollution intensity comprehensive value of the landfill site to be evaluated according to the first pollution intensity value of the construction waste and the second pollution intensity value of the non-construction waste;

and determining an evaluation result of the landfill site to be evaluated according to an evaluation condition met by the comprehensive pollution intensity value of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result.

2. The method of claim 1, wherein determining an evaluation parameter of the construction waste according to a pollution feature corresponding to the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameter comprises:

determining evaluation parameters corresponding to the construction waste to be a storage waste parameter, a leachate parameter, a polluted soil parameter and a landfill gas parameter according to the contents of biodegradable organic matters, heavy metals and persistent organic pollutants in the construction waste;

and calculating to obtain a first pollution intensity value of the construction waste according to the storage waste parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction waste.

3. The method of claim 2, wherein the values of the parameters of the landfill waste, leachate, contaminated soil and landfill gas according to the construction waste are obtained by:

acquiring a plurality of geographic environment parameters of a building garbage landfill stocking point according to parameter acquisition schemes corresponding to the building garbage landfill stocking point under the geographic environment parameters;

and calculating to obtain the storage garbage parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction garbage according to the plurality of geographic environment parameters.

4. The method of claim 3, wherein said calculating the values of the parameters of the construction waste inventory, leachate, contaminated soil and landfill gas based on the plurality of parameters of the geographic environment comprises:

determining pollution factors corresponding to each evaluation parameter of the construction waste by analyzing the plurality of geographic environment parameters;

and calculating to obtain the parameter values of the stored garbage, the parameter values of the percolate, the parameter values of the polluted soil and the parameter values of the landfill gas of the construction garbage according to the pollution factors corresponding to the evaluation parameters of the construction garbage.

5. The method of claim 4, wherein the step of calculating the values of the parameters of the stored garbage, the leachate, the contaminated soil and the landfill gas according to the pollution factors corresponding to the evaluation parameters of the construction waste comprises:

comparing and analyzing pollution factors corresponding to each evaluation parameter of the construction waste to obtain a difference value between the pollution factors;

and if the difference value between the pollution factors is within a preset difference value range, calculating to obtain a storage garbage parameter value, a leachate parameter value, a polluted soil parameter value and a landfill gas parameter value of the construction waste according to the pollution factors corresponding to the evaluation parameters of the construction waste.

6. The method of claim 1, wherein the pollution intensity composite characterizes pollution and overall pollution of the landfill site to be assessed for different types of refuse; the treatment regimen comprises at least one of: sealing a field, treating in-situ pollution and completely removing the pollution;

the method comprises the following steps of determining an evaluation result of the landfill site to be evaluated according to an evaluation condition which is satisfied by the comprehensive pollution intensity value of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result, and comprises the following steps:

determining an evaluation result of the landfill site to be evaluated according to evaluation conditions which are met by the landfill site to be evaluated aiming at pollution conditions of different types of garbage, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result;

or determining an evaluation result of the landfill site to be evaluated according to an evaluation condition met by the overall pollution condition of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result.

7. The method of claim 3, wherein the parameter acquisition scheme comprises at least one of: on-site investigation, surveying and mapping, hydrogeological exploration and drilling sampling.

8. A construction waste landfill site evaluation device, the device comprising:

the distinguishing module is used for distinguishing the construction waste and the non-construction waste in the waste according to the composition and the physicochemical property of the waste in the landfill site to be evaluated;

the determining module is used for determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste and calculating a first pollution intensity value of the construction waste according to the evaluation parameter;

the calculation module is used for calculating a comprehensive pollution intensity value of the landfill site to be evaluated according to the first pollution intensity value of the construction waste and the second pollution intensity value of the non-construction waste;

and the formulating module is used for determining the evaluation result of the landfill site to be evaluated according to the evaluation condition met by the pollution intensity comprehensive value of the landfill site to be evaluated, and formulating the treatment scheme of the landfill site to be evaluated according to the evaluation result.

9. An electronic device, comprising: a processor, a memory and a bus, the memory storing machine readable instructions executable by the processor, the processor and the memory communicating over the bus when the electronic device is operating, the machine readable instructions when executed by the processor performing the steps of the method of building landfill site assessment as claimed in any one of claims 1 to 7.

10. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, performs the steps of the method for evaluating a construction waste landfill site as recited in any one of claims 1 through 7.

Technical Field

The application relates to the technical field of site assessment, in particular to a method, a device, equipment and a medium for assessing a building garbage landfill site.

Background

For a long time, the resource utilization and disposal of the construction wastes in most areas of China are insufficient, so that most of the construction wastes are transported to suburbs for open-air stacking or simple landfill without any treatment. And because of difficult supervision, the phenomena of mixed landfill of early construction waste, domestic waste, sewage treatment sludge and other industrial waste are frequent. With the continuous development of urbanization in China, a plurality of early landfill points located in suburbs of cities gradually form new areas around the points, and the influence of the landfill points on the surrounding ecology, environment, safety, sanitation and the like is intensified.

The treatment of the storage garbage landfill and stacking points is urgent. Because the composition, storage capacity, environmental impact degree, peripheral area function, treatment target and the like of each stock pile are different, comprehensive and complete evaluation needs to be performed on the stock piles for guiding the design and implementation of a treatment scheme.

Disclosure of Invention

In view of this, an object of the present application is to provide a method, an apparatus, a device, and a medium for evaluating a building garbage landfill site, which classify garbage at the building garbage landfill site, and respectively calculate a first pollution intensity for the building garbage and a second pollution intensity for non-building garbage, so as to improve accuracy of evaluating the building garbage landfill site, and ensure pertinence of a treatment scheme.

In a first aspect, an embodiment of the present application provides a building rubbish landfill site evaluation method, where the method includes:

distinguishing construction waste and non-construction waste in the waste according to the composition and physical and chemical properties of the waste in the landfill site to be evaluated;

determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameter;

calculating a pollution intensity comprehensive value of the landfill site to be evaluated according to the first pollution intensity value of the construction waste and the second pollution intensity value of the non-construction waste;

and determining an evaluation result of the landfill site to be evaluated according to an evaluation condition met by the comprehensive pollution intensity value of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result.

In a preferred technical solution of the present application, the determining an evaluation parameter of the construction waste according to the pollution feature corresponding to the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameter includes:

determining evaluation parameters corresponding to the construction waste to be a storage waste parameter, a leachate parameter, a polluted soil parameter and a landfill gas parameter according to the contents of biodegradable organic matters, heavy metals and persistent organic pollutants in the construction waste;

and calculating to obtain a first pollution intensity value of the construction waste according to the storage waste parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction waste.

In a preferred technical scheme of the present application, the parameter values of the garbage inventory, the parameter values of the leachate, the parameter values of the contaminated soil and the parameter values of the landfill gas according to the construction waste are obtained as follows:

acquiring a plurality of geographic environment parameters of a building garbage landfill stocking point according to parameter acquisition schemes corresponding to the building garbage landfill stocking point under the geographic environment parameters;

and calculating to obtain the storage garbage parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction garbage according to the plurality of geographic environment parameters.

In a preferred embodiment of the present application, the calculating the parameter values of the stored garbage, the parameter values of the leachate, the parameter values of the contaminated soil and the parameter values of the landfill gas of the construction waste according to the plurality of geographic environment parameters includes:

determining pollution factors corresponding to each evaluation parameter of the construction waste by analyzing the plurality of geographic environment parameters;

and calculating to obtain the parameter values of the stored garbage, the parameter values of the percolate, the parameter values of the polluted soil and the parameter values of the landfill gas of the construction garbage according to the pollution factors corresponding to the evaluation parameters of the construction garbage.

In a preferred technical solution of the present application, the calculating the parameter values of the stored garbage, the parameter values of the leachate, the parameter values of the contaminated soil and the parameter values of the landfill gas of the construction waste according to the pollution factors corresponding to the evaluation parameters of the construction waste includes:

comparing and analyzing pollution factors corresponding to each evaluation parameter of the construction waste to obtain a difference value between the pollution factors;

and if the difference value between the pollution factors is within a preset difference value range, calculating to obtain a storage garbage parameter value, a leachate parameter value, a polluted soil parameter value and a landfill gas parameter value of the construction waste according to the pollution factors corresponding to the evaluation parameters of the construction waste.

In a preferred technical scheme of the application, the comprehensive value of the pollution intensity represents pollution conditions and overall pollution conditions of landfill sites to be evaluated for different types of garbage; the treatment regimen comprises at least one of: sealing a field, treating in-situ pollution and completely removing the pollution;

the method comprises the following steps of determining an evaluation result of the landfill site to be evaluated according to an evaluation condition which is satisfied by the comprehensive pollution intensity value of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result, and comprises the following steps:

determining an evaluation result of the landfill site to be evaluated according to evaluation conditions which are met by the landfill site to be evaluated aiming at pollution conditions of different types of garbage, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result;

or determining an evaluation result of the landfill site to be evaluated according to an evaluation condition met by the overall pollution condition of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result.

In a preferred embodiment of the present application, the parameter obtaining scheme includes at least one of: on-site investigation, surveying and mapping, hydrogeological exploration and drilling sampling.

In a second aspect, an embodiment of the present application provides a building rubbish landfill site evaluation device, where the device includes:

the distinguishing module is used for distinguishing the construction waste and the non-construction waste in the waste according to the composition and the physicochemical property of the waste in the landfill site to be evaluated;

the determining module is used for determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste and calculating a first pollution intensity value of the construction waste according to the evaluation parameter;

the calculation module is used for calculating a comprehensive pollution intensity value of the landfill site to be evaluated according to the first pollution intensity value of the construction waste and the second pollution intensity value of the non-construction waste;

and the formulating module is used for determining the evaluation result of the landfill site to be evaluated according to the evaluation condition met by the pollution intensity comprehensive value of the landfill site to be evaluated, and formulating the treatment scheme of the landfill site to be evaluated according to the evaluation result.

In a third aspect, an embodiment of the present application provides an electronic device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the building landfill site evaluation method when executing the computer program.

In a fourth aspect, the present application provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program performs the steps of the above-mentioned building landfill site evaluation method.

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

according to the composition and physical and chemical properties of the garbage in the landfill site to be evaluated, the construction garbage and the non-construction garbage in the garbage are distinguished; then, determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameter; then, calculating a comprehensive pollution intensity value of the landfill site to be evaluated according to the first pollution intensity value of the construction waste and the second pollution intensity value of the non-construction waste; and finally, determining an evaluation result of the landfill site to be evaluated according to the evaluation condition met by the comprehensive pollution intensity value of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result. The application carries out classification to the rubbish of building rubbish landfill heap point, calculates the first pollution intensity and the second pollution intensity of non-building rubbish to building rubbish respectively, has improved the accuracy to building rubbish landfill heap point aassessment, has guaranteed the pertinence of treatment scheme.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic flow chart illustrating a method for evaluating a building landfill site according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram illustrating a parameter obtaining scheme respectively corresponding to geographic environment parameters according to an embodiment of the present application;

FIG. 3 is a schematic diagram illustrating contamination factors corresponding to an evaluation parameter provided in an embodiment of the present application;

fig. 4 is a schematic diagram illustrating a building garbage landfill site evaluation device according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

The problem of environmental pollution caused by the fact that stocked building garbage piling points are left as history is that the boundaries are unclear, the pollution influence degree is difficult to distinguish, garbage components are mixed and the like. Meanwhile, with the development of urbanization, new residential areas are gradually formed around the polluted area, and the requirements on environmental protection and safety protection in the treatment process are improved. Particularly, along with the problem of shortage of land resources, the requirement of improving land use is more urgent after the land occupation of the once stockpiling point is treated.

Because an evaluation flow aiming at the storage building garbage stacking point does not exist, the existing evaluation scheme mostly refers to the pollution control of the household garbage landfill, the stable reutilization of the household garbage landfill, the pollution site treatment and other types of projects, and is lack of pertinence. The data monitored in the evaluation scheme directly guides the development of treatment engineering, and in view of the characteristics of long duration of garbage stacking points, large influence range and the like, if the sampling scheme is not standard, the authenticity of the data is difficult to guarantee. And the deviation of the monitoring data can cause improper treatment process application, deviation of estimation of treatment cost and incapability of ensuring treatment effect.

The pollution path of the stockpile building rubbish to the outside is mainly shown as the overflow of the water or the infiltration of the outside rainfall, and the formed percolate carries the pollutants to move outwards. Specifically, the leachate overflowing from the ground part of the garbage dump body pollutes the soil with lower topography along the terrain; leachate in the landfill will flow along the groundwater towards the formation with poor pollution prevention performance. Pollution approaches and development trends can be analyzed in detail through hydrogeological exploration, and the attention of the current situation evaluation process to the link is insufficient. The current situation evaluation process has insufficient discrimination of mixed landfill garbage, which may cause improper disposal of subsequent products of treatment projects and have potential environmental risks. According to project implementation experience, the situation that building garbage, domestic garbage, municipal sludge and industrial garbage are mixed in the storage building garbage piling point occurs occasionally.

Based on this, the embodiment of the application provides a method, a device, equipment and a medium for evaluating a building garbage landfill site, which are described below through embodiments.

Fig. 1 is a schematic flow chart illustrating a method for evaluating a building landfill site according to an embodiment of the present disclosure, wherein the method includes steps S101-S104; specifically, the method comprises the following steps:

s101, distinguishing construction waste and non-construction waste in the waste according to the composition and the physicochemical properties of the waste in the landfill site to be evaluated;

s102, determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameter;

s103, calculating a comprehensive pollution intensity value of the landfill site to be evaluated according to the first pollution intensity value of the construction waste and the second pollution intensity value of the non-construction waste;

and S104, determining an evaluation result of the landfill site to be evaluated according to an evaluation condition which is satisfied by the comprehensive pollution intensity value of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result.

The application carries out classification to the rubbish of building rubbish landfill heap point, calculates the first pollution intensity and the second pollution intensity of non-building rubbish to building rubbish respectively, has improved the accuracy to building rubbish landfill heap point aassessment, has guaranteed the pertinence of treatment scheme.

Some embodiments of the present application are described in detail below. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

S101, distinguishing construction waste and non-construction waste in the waste according to composition and physical and chemical properties of the waste in the landfill site to be evaluated.

In order to evaluate the landfill site to be evaluated more accurately, the method is different from the method for evaluating the garbage of the landfill site to be evaluated integrally in the prior art, the garbage contained in the landfill site to be evaluated is classified and processed, and then different types of garbage are evaluated respectively.

The solid waste in the pile body of the landfill site to be evaluated is classified according to the composition and physical and chemical properties of the garbage, and the details are shown in the following table 1.

TABLE 1 garbage Classification

。

Wherein, the organic matter content refers to the content of biodegradable organic matter, and can be less than 9 percent and more than or equal to 20 percent as reference. The water content is related to the actual condition of the project, and can be less than 20 percent and more than or equal to 50 percent as reference quantity. The heavy metal content can refer to the soil pollution risk control standard of soil environment quality construction land (GB 36600). The particle size distribution can be obtained by analyzing the material ratio of each particle size fraction through a screening test. The components can be divided according to kitchen wastes, paper, rubber and plastic, textile, wood and bamboo, lime soil, brick and tile ceramics, glass and metal, and the components obviously contain 3 types and more than or equal to 6 types as reference.

Through the analysis, the solid waste with the remarkable characteristics needs to be evaluated independently, otherwise, the solid waste can be considered uniformly according to the construction waste.

S102, determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameter.

According to the pollution characteristics corresponding to the construction waste, determining evaluation parameters of the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameters, wherein the method comprises the following steps:

determining evaluation parameters corresponding to the construction waste as a storage waste parameter, a leachate parameter, a polluted soil parameter and a landfill gas parameter according to the contents of biodegradable organic matters, heavy metals and persistent organic pollutants in the construction waste;

and calculating to obtain a first pollution intensity value of the construction waste according to the storage waste parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction waste.

The pollution characteristics of different wastes are different, and the pollution characteristics represent main pollutants and pollution paths of the wastes of the class.

The method comprises the steps of determining evaluation parameters corresponding to the construction waste to be a stored waste parameter, a leachate parameter, a contaminated soil parameter and a landfill gas parameter according to the characteristic that the content of biodegradable organic matters, heavy metals and persistent organic pollutants in the construction waste is low, and calculating to obtain a first pollution intensity value of the construction waste according to the stored waste parameter value, the leachate parameter value, the contaminated soil parameter value and the landfill gas parameter value of the construction waste.

The construction waste stock parameter value, leachate parameter value, contaminated soil parameter value and landfill gas parameter value in this application obtain through following mode:

acquiring a plurality of geographic environment parameters of the construction waste landfill stocking points according to parameter acquisition schemes corresponding to the construction waste landfill stocking points under the plurality of geographic environment parameters;

and calculating to obtain the storage garbage parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction garbage according to the plurality of geographic environment parameters.

According to a plurality of geographic environment parameters, calculating to obtain the stock rubbish parameter value, the leachate parameter value, the contaminated soil parameter value and the landfill gas parameter value of the construction waste, the method comprises the following steps:

determining pollution factors corresponding to each evaluation parameter of the construction waste by analyzing a plurality of geographic environment parameters;

and calculating to obtain the storage garbage parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction waste according to the pollution factors corresponding to the evaluation parameters of the construction waste.

As shown in fig. 2 and fig. 3, the acquisition mode of the geographic environment parameter in the present application includes four major parts of on-site investigation, mapping, hydrogeological survey, and sampling analysis, and then ten basic data of a geographic position parameter, an environment background value parameter, a pollution development parameter, a landform parameter, a hydrogeological parameter, a storage garbage pollution parameter, a soil pollution parameter, a leachate pollution parameter, a landfill gas pollution parameter, and a groundwater environment parameter can be obtained through qualitative and quantitative analysis of the geographic environment parameter. The specific acquisition method is as follows:

1. geographic location parameters:

(1) confirmation of treatment boundaries (pollution factor W)₁). The data is consulted to plan the red line and land boundary of the original stacking point. Secondly, the site survey is carried out, the current situation of the surrounding land parcel, whether the established building structure exists or not, whether the landform is obviously demarcated or not and the like exist or not. And thirdly, comprehensively judging the pollution range according to the subsequent sampling and testing conditions.

(2) Planning use and functional division of the polluted site. The method comprises the following steps of consulting area planning, urban planning, environmental air quality functional zoning, water environment functional zoning, soil environment quality requirements and the like.

(3) The surrounding environment is sensitive to the point orientation and properties. The environmental sensitive points are generally bounded by 3km outside project boundaries, including residential areas, schools, hospitals, natural water bodies on the surface and the like. The method includes the steps of checking data including maps, established items or approved environment sensitive items. Secondly, performing site reconnaissance, including display of sensitive points in monuments and visiting data in special areas.

2. Environmental background value parameter:

collecting data of daily monitoring points of an environmental protection monitoring department.

Collecting environmental monitoring data of other projects around the stacking point, wherein the environmental monitoring data comprises environmental influence report files (after examination and approval), other regular third-party monitoring reports and the like.

And supplementing partial monitoring data on site when necessary. Sampling and analyzing the background value of the surface water environment, collecting water samples of an upstream surface water system in a project basin, and executing according to technical Specifications for monitoring surface water and sewage (HJ/T91). Sampling and analyzing the atmospheric environment background value. Sampling and analyzing the background value of the soil, investigating the soil without obvious pollution and displacement within 3km outside the boundary of a project to be collected, and executing the investigation according to 'planting green soil' (CJ/T340) and 'soil for construction land' (GB 36600).

3. Pollution development parameters: the method includes the steps of looking up data, stacking production operation files in the process of implementing the original stacking point, and treating other pollution operations in the boundary. Secondly, the site survey, visiting the surrounding residents, inquiring managers and other working personnel.

4. Topographic elevation parameters: survey and drawing elevation (pollution factor W) of garbage pile and peripheral area₃) The method can be expanded according to project characteristics and can be executed by referring to engineering measurement Specifications (GB 50026). (this data is also used to subsequently calculate the inventory quantity W of inventory₄Amount of contaminated soil stock s₁）。

5. Hydrogeological parameters: the data, the data of the original monitoring well of the regional geology, the hydraulic ring and the site are consulted. And secondly, performing site hydrogeological survey on the treatment area, wherein the site hydrogeological survey can be executed by referring to geotechnical engineering technical specifications (DB 29-20). The method comprises the step of drilling engineering geology to obtain the distribution characteristics of a stratum structure, stratum lithology characteristics, a diving aquifer and a relative water-resisting layer in a field. And the underground water monitoring well obtains the flow field characteristics, the underground water path supplementing and draining conditions and the aeration zone characteristics of a site diving aquifer. (combining with the environmental parameters of underground water, obtaining the pollution factor l by qualitative analysis₂The data is also used for calculating the stock volume l of the percolate₁）。

6. The parameters of the pollution of the stored garbage are as follows: according to sampling and analysis of each drill hole, the buried depth of the garbage at the bottom of the field is obtained, and the buried depth W of the stored garbage is calculated by combining the terrain elevation₂。

The digital model data is constructed by applying MapInfo software, and the parameter w4 in the evaluation model is calculated by utilizing the surface modeling function of surfer software. Firstly, determining a distribution range of a target garbage body according to the confirmed governance boundary and the terrain elevation, and forming a boundary file by using MapInfo software (bln). Then, three-dimensional coordinates of the top and bottom plates of the target garbage body are obtained through each drilling hole, two groups of data representing the surface and bottom surfaces of the target garbage body are obtained by utilizing all drilling hole data in the exploration area, and gridding processing is carried out by surfer respectively, so that two gridding (. grd) files representing the surface and bottom surfaces are obtained. And finally, obtaining the approximate volume of the target garbage body by utilizing the surfer 'volume calculation' function.

The sampling analysis can be performed by referring to technical guide of site environment survey (HJ 25.1-2014). Firstly, samples are sorted and analyzed for the content of each component, including humus soil, slag particles, rubber and plastic, fabrics, bamboo, glass, metal, paper and the like. And then detecting the water content, organic matter content, heavy metal content and particle size distribution of the original sample. According to the sampling analysis result, the household garbage, the kitchen garbage, the building garbage, the municipal sludge, the industrial garbage and the like with obvious differences can be distinguished, the stacking direction is calibrated, and the stock volume is estimated. And calculating to obtain w5 according to each detected pollution index.

7. Soil pollution parameters:

(1) the sampling analysis can be performed by referring to technical guide of site environment survey (HJ 25.1-2014). Calculating to obtain s according to each pollution index obtained by detection₂。

(2) Stock of contaminated soil₁And W₄Calculating similarly, replacing the target garbage body with the polluted soil top and replacing the bottom plate with the polluted soil bottom, and calculating the obtained storage volume s of the polluted soil₁。

8. Pollution of leachate:

(1) leachate inventory (pollution factor l)₁) And W₄Similarly, replacing the target garbage body with an initial water level, replacing the bottom plate with a relative water-resisting layer, multiplying the calculated square quantity by the experiment to obtain the garbage porosity, and obtaining the estimated leachate stock square quantity l₁。

(2) The sampling analysis can be executed according to the pollution control standard of the domestic waste landfill (GB 16889). Aiming at each pollution index obtained by detection, calculating to obtain l₃。

9. Landfill gas pollution: (ii) gas production (parameter g in the evaluation model)₁) And after the sampling wellhead is plugged at the top of the pile body for 24 hours, measuring the gas flow rate in the well. Analysis (evaluation of the parameter g in the model)₂) The portable methane detector is used for detecting the components and the content of the landfill gas, and indexes comprise methane, carbon dioxide, oxygen, ammonia gas, hydrogen sulfide and the like.

10. Underground water environment: sampling is carried out according to the runoff direction of underground water, and the sampling is carried out according to the pollution control standard of a domestic garbage landfill (GB 16889). (combining hydrogeological parameters, and obtaining parameter l in the evaluation model by qualitative analysis₂）。

Evaluating the pollution intensity Pw of the stored garbage; evaluating the pollution intensity Pl of the percolate; evaluating the pollution intensity Ps of the polluted soil; landfill gas pollution intensity evaluation value Pg. The value ranges are all 0-100.

The evaluation value calculation is carried out by adopting a weighted linear sum method, wherein each evaluation factor has a weight scale factor ofAnd the following requirements are met:. Wherein n =4, and each evaluation factor weights a scaling factor;；values can be taken according to project conditions, and an average value can be taken when no specific direction exists.

。

Similar calculations as described above are also performed for each subentry evaluation factor, as follows.

，，；

，，；

，，；

，，；

Wherein the evaluation of the pollution degree can set the number of terms according to the actual situation of the pollution factor.

The value taking method of each parameter comprises the following steps: w is a₁The inventory garbage floor area is rounded down by taking ten thousand m as a unit, multiplied by 10 and has an upper limit of 100.

w₂The buried depth of the garbage pile is limited to 10m, and the ratio of the number of the drill holes which are larger than or equal to the limited value to the total number of the drill holes is multiplied by 100.

w₃The height of the garbage pile is limited to 10m, and the ratio of the projection area of the pile, which is greater than or equal to the limit value, to the total area is multiplied by 100.

w₄And taking 10 ten thousand meters for carrying out downward rounding, multiplying by 10 and carrying out 100 times upper limit on the inventory quantity of garbage.

w₅And multiplying the ratio of the number of sampling points of certain pollutant in the stored garbage exceeding the standard (the sampling detection value exceeds the set treatment target value) to the total number of the sampling points by 100.

l₁And carrying out downward rounding and multiplying by 10 on the inventory percolate inventory by taking 1 ten thousand m as a unit. The upper limit is 100.

l₂And comprehensively analyzing the water quality conditions of surface water, underground water and upstream and downstream, regional hydrogeological conditions and qualitative values by hydraulic connection of leachate. When the change range of the upstream and downstream water quality monitoring indexes does not exceed 10 percent and the downstream direction of the stockpile garbage is a water impermeable layer, the number of the upstream and downstream water quality monitoring indexes can be 0; when the change range of the upstream and downstream water quality monitoring indexes exceeds 100 percent and the downstream direction of the garbage storage is a permeable layer, the upper limit of 100 can be taken.

l₃Same as w₅。

s₁And carrying out downward rounding by taking 1 ten thousand meters for carrying out the downward rounding and multiplying by 10. The upper limit is 100.

s₂Same as w₅。

g₁Landfill gasThe air volume is limited by the drilling flow velocity of 0.2m/s, and the ratio of the number of the drill holes which are larger than or equal to the limited value to the total number of the drill holes is multiplied by 100.

g₂Same as w₅。

In order to ensure the accuracy of evaluation, pollution factors corresponding to each evaluation parameter of the construction waste are contrasted and analyzed to obtain a difference value between each pollution factor;

and if the difference value between the pollution factors is within the preset difference value range, calculating to obtain a storage garbage parameter value, a leachate parameter value, a polluted soil parameter value and a landfill gas parameter value of the construction waste according to the pollution factors corresponding to the evaluation parameters of the construction waste.

S103, calculating a comprehensive pollution intensity value of the landfill site to be evaluated according to the first pollution intensity value of the construction waste and the second pollution intensity value of the non-construction waste.

The method comprises the steps of calculating to obtain a first pollution intensity value of the construction waste, calculating to obtain a second pollution intensity value of the non-construction waste by the prior art, and then integrating the pollution intensities of all the waste at the landfill sites to be evaluated to obtain a comprehensive pollution intensity value of the landfill sites to be evaluated.

The comprehensive pollution intensity value in the application characterizes the pollution condition and the overall pollution condition of the landfill site to be evaluated aiming at different types of garbage. That is, the pollution conditions of the landfill site to be evaluated for different types of garbage can be obtained from the comprehensive pollution intensity value, and the overall pollution condition of the landfill site to be evaluated can also be obtained from the comprehensive pollution intensity value.

And S104, determining an evaluation result of the landfill site to be evaluated according to an evaluation condition which is satisfied by the comprehensive pollution intensity value of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result.

When the evaluation result is determined, the pollution condition of the landfill site to be evaluated for different types of garbage and the overall pollution condition of the landfill site to be evaluated need to be fully considered.

Namely, according to the assessment condition satisfied by the comprehensive pollution intensity value of the landfill site to be assessed, determining the assessment result of the landfill site to be assessed, and according to the assessment result, formulating a treatment scheme of the landfill site to be assessed, comprising:

determining an evaluation result of the landfill site to be evaluated according to evaluation conditions which are met by the landfill site to be evaluated aiming at pollution conditions of different types of garbage, and making a treatment scheme of the landfill site to be evaluated according to the evaluation result;

or determining the evaluation result of the landfill site to be evaluated according to the evaluation condition met by the overall pollution condition of the landfill site to be evaluated, and formulating the treatment scheme of the landfill site to be evaluated according to the evaluation result.

In the application, if a certain pollution degree of single garbage at a landfill site to be evaluated seriously exceeds the standard, an evaluation result needs to be specific to the pollutant seriously exceeding the standard. If the pollution degrees of various wastes of the landfill sites to be evaluated are similar, the evaluation result needs to consider the overall pollutants of the landfill sites to be evaluated.

The remediation protocols in this application include at least one of: sealing the field, treating the in-situ pollution and completely removing the pollution.

The choice of a particular treatment regimen will need to be selected according to the emphasis in the assessment results.

For example as shown in the following table:

TABLE 2 treatment protocol

。

The application is designed aiming at the characteristics of low contents of biodegradable organic matters, heavy metals and persistent organic pollutants in the construction waste. And a detailed parameter collection scheme is formulated in a preliminary investigation stage, so that comprehensive coverage is ensured, key pollutants are highlighted, and a basis is provided for design and implementation of treatment engineering. By comparing the parameter indexes of the pollution factors, whether the difference is in a reasonable interval or not is analyzed, and the accuracy of data providing is ensured. The hydrogeological survey is emphasized, and underground water radial draining and replenishing conditions, underground water flow direction, stratum seepage-proofing performance, underground water monitoring indexes and the like are clearly provided. Underground engineering is difficult, high in cost and not easy to guarantee the effect, and the technology can provide design basis for high-efficiency and low-consumption implementation of treatment engineering. The physical and chemical properties of different types of garbage are greatly different, and the pollution characterization and treatment processes are also different. According to the invention, the obvious layers of the drilling sampling are respectively subjected to component analysis, and the garbage with similar physical and chemical properties is combined to calculate the amount according to the result. The selection of subsequent treatment processes is facilitated, the subsequent treatment cost is prevented from being greatly increased, and the environmental pollution risk is reduced.

Fig. 4 shows a schematic structural diagram of a building rubbish landfill site evaluation device provided by an embodiment of the application, and the device includes:

the distinguishing module is used for distinguishing construction waste and non-construction waste in the waste according to the composition and the physicochemical property of the waste in the landfill site to be evaluated;

the determining module is used for determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste and calculating a first pollution intensity value of the construction waste according to the evaluation parameter;

the calculation module is used for calculating a comprehensive pollution intensity value of the landfill site to be evaluated according to the first pollution intensity value of the construction waste and the second pollution intensity value of the non-construction waste;

and the formulating module is used for determining the evaluation result of the landfill site to be evaluated according to the evaluation condition met by the pollution intensity comprehensive value of the landfill site to be evaluated, and formulating the treatment scheme of the landfill site to be evaluated according to the evaluation result.

The determining module is used for determining an evaluation parameter of the construction waste according to the pollution characteristic corresponding to the construction waste and calculating a first pollution intensity value of the construction waste according to the evaluation parameter, and comprises:

according to the pollution characteristics corresponding to the construction waste, determining evaluation parameters of the construction waste, and calculating a first pollution intensity value of the construction waste according to the evaluation parameters, wherein the method comprises the following steps:

determining evaluation parameters corresponding to the construction waste as a storage waste parameter, a leachate parameter, a polluted soil parameter and a landfill gas parameter according to the contents of biodegradable organic matters, heavy metals and persistent organic pollutants in the construction waste;

and calculating to obtain a first pollution intensity value of the construction waste according to the storage waste parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction waste.

Obtaining the parameter values of the garbage, the parameter values of the leachate, the parameter values of the polluted soil and the parameter values of the landfill gas according to the storage quantity of the construction waste in the following modes:

acquiring a plurality of geographic environment parameters of the construction waste landfill stocking points according to parameter acquisition schemes corresponding to the construction waste landfill stocking points under the plurality of geographic environment parameters;

and calculating to obtain the storage garbage parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction garbage according to the plurality of geographic environment parameters.

According to a plurality of geographic environment parameters, calculating to obtain the stock garbage parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction garbage, wherein the method comprises the following steps:

determining pollution factors corresponding to each evaluation parameter of the construction waste by analyzing a plurality of geographic environment parameters;

and calculating to obtain the storage garbage parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction waste according to the pollution factors corresponding to the evaluation parameters of the construction waste.

The parameter acquisition scheme includes at least one of: on-site investigation, surveying and mapping, hydrogeological exploration and drilling sampling.

According to the pollution factors corresponding to the evaluation parameters of the construction waste, the calculation of the stock waste parameter value, the leachate parameter value, the polluted soil parameter value and the landfill gas parameter value of the construction waste comprises the following steps:

comparing and analyzing pollution factors corresponding to each evaluation parameter of the construction waste to obtain a difference value between the pollution factors;

and if the difference value between the pollution factors is within the preset difference value range, calculating to obtain a storage garbage parameter value, a leachate parameter value, a polluted soil parameter value and a landfill gas parameter value of the construction waste according to the pollution factors corresponding to the evaluation parameters of the construction waste.

The formulating module is used for determining the evaluation result of the landfill site to be evaluated according to the evaluation condition met by the pollution intensity comprehensive value of the landfill site to be evaluated, and formulating the treatment scheme of the landfill site to be evaluated according to the evaluation result, and comprises the following steps:

the comprehensive pollution intensity value represents the pollution condition and the total pollution condition of the landfill site to be evaluated aiming at different types of garbage; the treatment regimen comprises at least one of: sealing a field, treating in-situ pollution and completely removing the pollution;

determining an evaluation result of the landfill site to be evaluated according to an evaluation condition which is satisfied by the comprehensive pollution intensity value of the landfill site to be evaluated, and formulating a treatment scheme of the landfill site to be evaluated according to the evaluation result, wherein the evaluation condition comprises the following steps:

determining an evaluation result of the landfill site to be evaluated according to evaluation conditions which are met by the landfill site to be evaluated aiming at pollution conditions of different types of garbage, and making a treatment scheme of the landfill site to be evaluated according to the evaluation result;

or determining the evaluation result of the landfill site to be evaluated according to the evaluation condition met by the overall pollution condition of the landfill site to be evaluated, and formulating the treatment scheme of the landfill site to be evaluated according to the evaluation result.

As shown in fig. 5, an embodiment of the present application provides an electronic device for executing the building landfill site evaluation method in the present application, where the device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the building landfill site evaluation method when executing the computer program.

Specifically, the memory and the processor may be general-purpose memory and processor, which are not limited in particular, and the processor can execute the above-mentioned building garbage landfill site evaluation method when executing the computer program stored in the memory.

Corresponding to the building landfill site evaluation method in the present application, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the building landfill site evaluation method.

Specifically, the storage medium can be a general-purpose storage medium, such as a removable disk, a hard disk, or the like, and when executed, the computer program on the storage medium can execute the above-mentioned building landfill site evaluation method.

In the embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other ways. The above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and there may be other divisions in actual implementation, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of systems or units through some communication interfaces, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the present disclosure, which should be construed in light of the above teachings. Are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.