阅读说明：本技术 一种环保能源固体废物的处理方法 (Method for treating environment-friendly energy solid waste ) 是由 沈银芳 于 2021-07-30 设计创作，主要内容包括：本发明公开固体废物技术领域的一种环保能源固体废物的处理方法,包括压实步骤、破碎步骤、分选步骤、固化步骤、热解步骤和生物处理步骤,所述热解步骤中有机物在无氧或缺氧条件在需要在500-1000度的高温进行加热,所述破碎步骤中的破碎方法可以采用冲击破碎、剪切破碎、挤压破碎、摩擦破碎,对固体废物进行有效的无害化处理,对废物实行减容化,降低运输成本,经过破碎处理的废物,由于消除了大的空隙,不仅使尺寸大小均匀,而且质地也均匀,在填埋过程中更容易压实,通过分选将有用的充分选出来加以利用,将有害的充分分离出来,使有害固体废弃物固定或包容在惰性固化基材中的一种无害化处理,最后利用微生物对有机固体废物的分解作用使其无害化。(The invention discloses a method for treating solid waste of environmental protection energy in the technical field of solid waste, which comprises a compacting step, a crushing step, a sorting step, a curing step, a pyrolysis step and a biological treatment step, wherein organic matters in the pyrolysis step are heated at a high temperature of 1000 ℃ under an anaerobic or anoxic condition, the crushing method in the crushing step can adopt impact crushing, shearing crushing, extrusion crushing and friction crushing to effectively perform harmless treatment on the solid waste, volume reduction is performed on the waste, the transportation cost is reduced, the waste after crushing treatment has uniform size and uniform texture due to elimination of large gaps, is easier to compact in a landfill process, useful and fully selected for utilization through sorting, and harmful solid waste is fixed or contained in an inert curing base material for harmless treatment, finally, the organic solid waste is made harmless by utilizing the decomposition effect of the microorganisms on the organic solid waste.)

1. A method for treating solid waste of environmental protection energy is characterized in that: the method comprises the following steps:

a compaction step, in which the waste is compacted to reduce the volume of the waste;

a crushing step, namely crushing the compacted waste by millimeter-sized granularity;

a sorting step, useful materials are fully selected and utilized, and harmful materials are fully separated;

a curing step of adding a curing base material to the waste;

a pyrolysis step, heating the organic matter at high temperature under the anaerobic or anoxic condition to decompose the organic matter into three products of gas, liquid and solid;

and a biological treatment step of decomposing the organic solid waste into harmless organic solid waste by using microorganisms.

2. The method for treating the solid waste of the environmental protection energy source according to claim 1, wherein: the organic matter in the pyrolysis step is heated at high temperatures of 500-.

3. The method for treating the solid waste of the environmental protection energy source according to claim 1, wherein: the crushing method in the crushing step may employ impact crushing, shear crushing, squeeze crushing, friction crushing, cryogenic crushing, and wet crushing.

4. The method for treating the solid waste of the environmental protection energy source according to claim 1, wherein: the sorting in the sorting step is carried out according to the difference of granularity, density, magnetism, electric property, photoelectric property, frictional property, elasticity and surface wettability of the materials, and can be divided into screening, gravity sorting, magnetic sorting, electric sorting, photoelectric sorting, frictional and elastic sorting, namely, the separation is carried out by utilizing the difference of magnetism and non-magnetism in the wastes; separating by utilizing the difference of particle size; separation is performed by utilizing specific gravity difference.

5. The method for treating the solid waste of the environmental protection energy source according to claim 1, wherein: in the curing step, the curing base material is added into the waste and is randomly prepared according to different weight proportions according to actual needs.

Technical Field

The invention relates to the technical field of solid waste, in particular to a method for treating solid waste of environment-friendly energy.

Background

The solid waste is randomly stacked without harmless treatment, pollutes the atmosphere, pollutes the soil and invades the land, and harmful components of the solid waste, such as trace harmful elements of mercury (from red plastics, neon tubes, batteries, vermilion inkpad and the like), cadmium (from printing, ink, fibers, enamel, glass, cadmium pigments, paint, coloring ceramic and the like), lead (from yellow polyethylene, lead-made running water pipes, antirust paint and the like) and the like can enter the soil along with the leachate after treatment, so that underground water is polluted, and simultaneously, the harmful elements can permeate into a water net along with the rainwater, flow into a water well and a river to nearby sea areas, be ingested by plants, enter a human body through a food chain and influence the health of the human body.

Based on the above, the invention designs a method for treating solid waste of environmental protection energy, so as to solve the problems.

Disclosure of Invention

The invention aims to provide a method for treating solid waste of environmental-friendly energy, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a method for treating solid waste of environmental protection energy comprises the following steps:

a compaction step, in which the waste is compacted to reduce the volume of the waste;

a crushing step, namely crushing the compacted waste by millimeter-sized granularity;

a sorting step, useful materials are fully selected and utilized, and harmful materials are fully separated;

a curing step of adding a curing base material to the waste;

a pyrolysis step, heating the organic matter at high temperature under the anaerobic or anoxic condition to decompose the organic matter into three products of gas, liquid and solid;

and a biological treatment step of decomposing the organic solid waste into harmless organic solid waste by using microorganisms.

As a further aspect of the present invention, the organic material in the pyrolysis step is heated at a high temperature of 500-1000 ℃ under oxygen-free or oxygen-deficient conditions.

As a further aspect of the present invention, the crushing method in the crushing step may employ impact crushing, shear crushing, squeeze crushing, friction crushing, cryogenic crushing, and wet crushing.

As a further aspect of the present invention, the sorting in the sorting step is performed according to the difference of the particle size, density, magnetism, electric property, photoelectric property, frictional property, elasticity and surface wettability of the material, and may be classified into sieving, gravity sorting, magnetic sorting, electric sorting, photoelectric sorting, frictional and elastic sorting, that is, separation is performed by using the difference of magnetism and non-magnetism in the waste; separating by utilizing the difference of particle size; separation is performed by utilizing specific gravity difference.

As a further scheme of the invention, the curing substrate is added into the waste in the curing step and is randomly prepared according to different weight proportions according to actual needs.

Compared with the prior art, the invention has the beneficial effects that:

the invention carries out effective harmless treatment on the solid waste through the compaction step, the crushing step, the sorting step, the curing step, the pyrolysis step and the biological treatment step, reduces the volume of the waste and reduces the transportation cost, the crushed waste not only has uniform size but also uniform texture due to the elimination of large gaps, is easier to compact in the landfill process, is fully selected and utilized by sorting, fully separates out harmful solid waste, fixes or contains the harmful solid waste in an inert curing base material for harmless treatment, and finally utilizes the decomposition effect of microorganisms on the organic solid waste to make the organic solid waste harmless.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic flow diagram of the process of the present invention;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a method for treating solid waste of environmental protection energy comprises the following steps:

compacting, namely compacting the wastes, reducing the volume of the wastes, reducing the transportation cost and prolonging the service life of a landfill site;

crushing, namely crushing the compacted waste at millimeter-level granularity, wherein the crushed waste has uniform size and uniform texture due to elimination of large gaps, and is easier to compact in the landfill process;

a separation step, namely useful and sufficient separation is carried out for utilization, harmful and sufficient separation is carried out, and the recycling and reduction of solid waste are realized;

a solidification step, namely adding a solidification substrate into the waste to fix or contain the harmful solid waste in an inert solidification substrate for harmless treatment;

a pyrolysis step, heating the organic matter at high temperature under the anaerobic or anoxic condition to decompose the organic matter into three products of gas, liquid and solid;

a biological treatment step of decomposing the organic solid waste into harmless substances by using microorganisms.

In the pyrolysis step, the organic matter is heated at the high temperature of 500-1000 ℃ under the oxygen-free or oxygen-deficient condition, and compared with the incineration method, the pyrolysis method is a more promising treatment method, the investment is less, and secondary pollution cannot be caused.

The crushing method in the crushing step may employ impact crushing, shear crushing, squeeze crushing, friction crushing, low-temperature crushing, and wet crushing.

The sorting in the sorting step is carried out according to the difference of granularity, density, magnetism, electric property, photoelectric property, frictional property, elasticity and surface wettability of the materials, and can be divided into screening, gravity sorting, magnetic sorting, electric sorting, photoelectric sorting, frictional and elastic sorting, namely, the separation is carried out by utilizing the difference of magnetism and non-magnetism in the wastes; separating by utilizing the difference of particle size; separation is performed by utilizing specific gravity difference.

In the curing step, the curing base material is added into the waste and is randomly prepared according to different weight proportions according to actual needs.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.