阅读说明：本技术 垃圾填埋场用防渗层结构 (Impervious barrier structure for refuse landfill ) 是由 王万海 王万田 沈洪亿 于 2021-08-18 设计创作，主要内容包括：本发明涉及一种垃圾填埋场用防渗层结构,属于垃圾填埋设备领域,所述垃圾填埋场用防渗层结构是在地基表面挖坑后,利用混凝土板将填埋坑体、隔断层、吸附层隔断出,填埋坑体位于中间位置,隔断层位于填埋坑体底部,吸附层位于填埋坑体左右两侧,垃圾填埋进填埋坑体内,在吸附层及填充层内填充吸附材料,吸附材料可对垃圾分解产生的气体进行吸附,同时在填埋坑体底部设置漏液管及出液管,在填埋坑体底部设置侧出液管,可对垃圾分解产生的液体进行回收处理,可起到良好的防渗效果。(The invention relates to an impermeable layer structure for a refuse landfill, which belongs to the field of refuse landfill equipment.)

1. The anti-seepage layer structure for the refuse landfill is characterized by mainly comprising a foundation, a landfill pit body, a filling layer, a partition layer, an adsorption layer, an anti-seepage layer, a liquid leakage pipe, a liquid outlet pipe, a side liquid outlet pipe, a cover plate and a liquid inlet pipe, wherein the landfill pit body is a pit body on the surface of the foundation, the filling layer is arranged on the outer side of the landfill pit body, the partition layer is arranged beside the filling layer, the anti-seepage layer is arranged on the inner surface of the landfill pit body, the liquid leakage pipe is arranged at the bottom of the landfill pit body, the liquid outlet pipe is communicated with the liquid leakage pipe, the side liquid outlet pipe is arranged on the side face of the landfill pit body, the cover plate is arranged at the top of the foundation, and the liquid inlet pipe is arranged inside the landfill pit body.

2. The barrier structure for landfill according to claim 1, wherein: the landfill body, the partition layer and the adsorption layer are integrally formed, the concrete slab is utilized to partition the landfill body, the partition layer and the adsorption layer out after the pit body is dug on the surface of the foundation, the landfill body is located in the middle, the partition layer is located at the bottom of the landfill body, and the adsorption layer is located on the left side and the right side of the landfill body.

3. The barrier structure for landfill according to claim 1, wherein: the cover plate is a stretchable plate and covers the filling layer and the absorption layer.

4. The barrier structure for landfill according to claim 1, wherein: the liquid leakage pipes are at least three and are communicated with the liquid outlet pipe, and the liquid outlet pipe is positioned in the partition layer.

5. The barrier structure for landfill according to claim 1, wherein: the side liquid outlet pipes are arranged on the left side and the right side of the landfill body, and each side is provided with at least three side liquid outlet pipes.

6. The barrier structure for landfill according to claim 1, wherein: the liquid inlet pipe is provided with two, is connected with landfill body bottom, and the liquid inlet pipe side is provided with the inlet.

7. The barrier structure for landfill according to claim 1, wherein: the anti-seepage layer is an HDPE film and is formed by stacking and adhering at least three layers of HDPE films, the anti-seepage layer is adhered to the inner surface of the landfill body through an adhesive, and the anti-seepage layer extends to the top from the inside of the landfill body and is prolonged.

8. The barrier structure for landfill according to claim 1, wherein: the filling layer and the adsorption layer are internally filled with adsorption materials, the adsorption materials in the filling layer are clay adsorbents, and the adsorption materials in the adsorption layer are mixtures of columnar activated carbon and molecular sieves.

9. The barrier structure for landfill according to claim 7, wherein: the filling layer adsorption material is a clay adsorbent, the clay is formed by mixing sepiolite, palygorskite and magnetic iron powder, and the clay adsorbent is formed by mixing 40% of sepiolite powder, 40% of palygorskite powder and 20% of magnetic iron powder.

Technical Field

The invention belongs to the field of refuse landfill treatment equipment, and particularly relates to an impermeable layer structure for a refuse landfill.

Background

The garbage disposal method can be generally divided into several methods such as sanitary landfill, incineration, composting and the like. The refuse landfill is a refuse centralized stacking site in a sanitary landfill mode, is widely applied in China due to low cost and good sanitation degree, is generally treated in a layered earth covering landfill mode, and is covered with a layer of loess after a layer of refuse is stacked, so that the pollution of the refuse is easily reduced; however, the main problem to be avoided by the landfill site is the seepage prevention problem of the landfill site, the landfill site is buried, the landfill can be decomposed after being buried, once liquid generated by the decomposition of the landfill leaks, soil and water sources can be polluted, and serious pollution is caused, so that the landfill site has strict requirements on the seepage prevention structure except for the consideration of the landfill treatment effect of the landfill, and meanwhile, except for the possibility that the rotten liquid leaks, the decomposition of the landfill can also emit pungent smell to influence the environment, so that the invention provides the seepage prevention layer structure for the landfill site.

Disclosure of Invention

The invention discloses an impermeable layer structure for a refuse landfill, which can overcome the problems in the background art, and is characterized in that after a pit is dug on the surface of a foundation, a concrete slab is utilized to separate a landfill body, a partition layer and an adsorption layer, the landfill body is positioned in the middle, the partition layer is positioned at the bottom of the landfill body, the adsorption layer is positioned at the left side and the right side of the landfill body, the refuse is buried into the landfill body, the adsorption layer and the filling layer are filled with adsorption materials, the adsorption materials can adsorb gas generated by the decomposition of the refuse, meanwhile, a liquid leakage pipe and a liquid outlet pipe are arranged at the bottom of the landfill body, and a side liquid outlet pipe is arranged at the side surface of the landfill body, so that the liquid generated by the decomposition of the refuse can be recycled, and a good impermeable effect can be achieved.

In order to realize the purpose, the invention is realized by the following technical scheme:

the barrier layer structure for refuse landfill mainly includes ground, the landfill hole body, filling layer, partition layer, adsorbed layer, barrier layer, weeping pipe, drain pipe, side weeping pipe, apron, feed liquor pipe, the landfill hole body is the hole body on ground surface, and the filling layer setting is in the landfill hole external side, and the partition layer setting is at the filling layer side, and the barrier layer setting is at the internal surface of landfill hole, and the weeping pipe setting is in landfill hole body bottom, drain pipe and weeping pipe intercommunication, the side weeping pipe setting is in landfill hole body side, and the apron setting is at the ground top, and the feed liquor pipe setting is at the internal portion of landfill hole.

Furthermore, the landfill body, the partition layer and the adsorption layer are integrally formed, the landfill body, the partition layer and the adsorption layer are partitioned by utilizing a concrete slab after the pit body is dug on the surface of the foundation, the landfill body is located at the middle position, the partition layer is located at the bottom of the landfill body, and the adsorption layer is located on the left side and the right side of the landfill body.

Furthermore, the cover plate is a stretchable plate, and the cover plate covers the filling layer and the absorption layer.

Furthermore, the leakage pipes are at least three and are communicated with the liquid outlet pipe, and the liquid outlet pipe is positioned in the partition layer.

Furthermore, the side liquid outlet pipes are arranged on the left side and the right side of the landfill body, and each side is provided with at least three side liquid outlet pipes.

Furthermore, the number of the liquid inlet pipes is two, the liquid inlet pipes are connected with the bottom of the landfill body, and liquid inlets are formed in the side faces of the liquid inlet pipes.

Furthermore, the anti-seepage layer is an HDPE film, the anti-seepage layer is formed by stacking and adhering at least three layers of HDPE films, the anti-seepage layer is adhered to the inner surface of the landfill body through an adhesive, and the anti-seepage layer extends to the top from the inside of the landfill body and is prolonged.

Furthermore, the filling layer and the adsorption layer are internally filled with adsorption materials, the adsorption materials in the filling layer are clay adsorbents, and the adsorption materials in the adsorption layer are a mixture of columnar activated carbon and a molecular sieve.

Furthermore, the filling layer adsorption material is a clay adsorbent, the clay is formed by mixing sepiolite, palygorskite and magnetic iron powder, and the clay adsorbent is formed by mixing 40% of sepiolite powder, 40% of palygorskite powder and 20% of magnetic iron powder.

The invention has the beneficial effects that: the impermeable layer structure for the refuse landfill is characterized in that after a pit is dug on the surface of a foundation, a concrete slab is utilized to separate a landfill pit body, a partition layer and an adsorption layer, the landfill pit body is located at the middle position, the partition layer is located at the bottom of the landfill pit body, the adsorption layer is located on the left side and the right side of the landfill pit body, refuse landfill is carried out in the landfill pit body, adsorption materials are filled in the adsorption layer and a filling layer, the adsorption materials can adsorb gas generated by refuse decomposition, a liquid leakage pipe and a liquid outlet pipe are arranged at the bottom of the landfill pit body, a side liquid outlet pipe is arranged on the side face of the landfill pit body, liquid generated by refuse decomposition can be recycled, and a good impermeable effect can be achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure, 1-foundation, 2-landfill pit body, 3-filling layer, 4-partition layer, 5-adsorption layer, 6-impermeable layer, 7-liquid leakage pipe, 8-liquid outlet pipe, 9-side liquid outlet pipe, 10-cover plate and 11-liquid inlet pipe.

Detailed Description

In order to make the above objects, technical solutions and advantages clearer and more clear, the present invention is specifically described below with reference to the accompanying drawings and embodiments.

Example 1:

as shown in fig. 1, the impermeable layer structure for the refuse landfill mainly comprises a foundation 1, a landfill body 2, a filling layer 3, a blocking layer 4, an adsorption layer 5, an impermeable layer 6, a liquid leakage pipe 7, a liquid outlet pipe 8, a side liquid outlet pipe 9, a cover plate 10 and a liquid inlet pipe 11, wherein the landfill body 2 is a pit body on the surface of the foundation 1, the filling layer 3 is arranged on the outer side of the landfill body 2, the blocking layer 4 is arranged on the side of the filling layer 3, the landfill body 2, the blocking layer 4 and the adsorption layer 5 are integrally formed, the landfill body 2, the blocking layer 4 and the adsorption layer 5 are blocked by a concrete slab after the pit body is dug on the surface of the foundation 1, the landfill body 2 is located in the middle position, the blocking layer 4 is located at the bottom of the landfill body 2, the adsorption layer 5 is located on the left side and the right side of the landfill body 2, the filling layer 3 and the adsorption layer 5 are internally filled with adsorption materials, and the adsorption materials in the filling layer 3 are clay adsorbents, the adsorption material in the adsorption layer 5 is a mixture of columnar activated carbon and a molecular sieve, the adsorption material in the filling layer 3 is a clay adsorbent, clay is formed by mixing sepiolite, palygorskite and magnetic iron powder, the clay adsorbent is formed by mixing 40% of sepiolite powder, 40% of palygorskite powder and 20% of magnetic iron powder, the impermeable layer 6 is arranged on the inner surface of the landfill body 2, the impermeable layer 6 is an HDPE (high-density polyethylene) film, the impermeable layer 6 is formed by stacking and adhering at least three layers of HDPE (high-density polyethylene) films, the impermeable layer 6 is adhered to the inner surface of the landfill body 2 through viscose, the impermeable layer 6 extends to the top from the inside of the landfill body 2 and is prolonged, the liquid leakage pipe 7 is arranged at the bottom of the landfill body 2, the liquid leakage pipe 8 is communicated with the liquid leakage pipe 7, the liquid leakage pipe 7 is at least three, the three liquid leakage pipes 7 are communicated with the liquid leakage pipe 8, the liquid leakage pipe 8 is positioned in the partition layer 4, the side outlet 9 is arranged on the side face of the landfill body 2, the side liquid outlet pipes 9 are arranged on the left side and the right side of the landfill body 2, at least three side liquid outlet pipes 9 are arranged on each side, the cover plate 10 is arranged on the top of the foundation 1, the cover plate 10 is a stretchable plate, the cover plate 10 covers the filling layer 3 and the adsorption layer 5, the liquid inlet pipes 11 are arranged inside the landfill body 2, the number of the liquid inlet pipes 11 is two, the liquid inlet pipes 11 are connected with the bottom of the landfill body 2, and liquid inlets are arranged on the side faces of the liquid inlet pipes 11;

the impermeable layer structure for the refuse landfill is characterized in that after a pit is dug on the surface of a foundation 1, a concrete slab is utilized to separate a landfill body 2, a partition layer 3 and an adsorption layer 4, the landfill body 2 is positioned in the middle, the partition layer 3 is positioned at the bottom of the landfill body 2, the adsorption layer 4 is positioned at the left side and the right side of the landfill body 2, the refuse is buried in the landfill body 2, a decomposition liquid is introduced from a liquid inlet pipe 11 and flows out from the liquid inlet to be contacted with the refuse, the decomposition liquid can accelerate the putrefaction and decomposition of the refuse, the adsorption layer 4 and the filling layer 3 are filled with adsorption materials which can adsorb gas generated by the decomposition of the refuse, meanwhile, a liquid leakage pipe 7 and a liquid outlet pipe 8 are arranged at the bottom of the landfill body 2, a side liquid outlet pipe 9 is arranged at the side surface of the landfill body 2, the liquid generated by the decomposition of the refuse can be recovered, a good impermeable effect can be achieved, the adsorption materials in the adsorption layer 5 and the filling layer 3 can be recovered and replaced from a cover plate 10, meanwhile, the device can be used as an observation well to observe the internal condition.

The foundation is a selected refuse landfill site, according to the designed volume, a pit body is dug on the surface of the foundation 1, after the pit body is dug, a landfill pit body 2, a partition layer 4 and an adsorption layer 5 which are formed by pouring are installed, a connection gap with the foundation 1 utilizes concrete joint, corresponding filling materials are filled in the adsorption layer 5 and the filling layer 3, an impermeable layer 6 is glued on the inner surface of the landfill pit body 2, the impermeable layer 6 is an HDPE film, the impermeable layer 6 is formed by stacking and adhering at least three layers of HDPE films, the impermeable layer 6 is glued on the inner surface of the landfill pit body 2 through glue, the impermeable layer 6 extends to the top from the inside of the landfill pit body 2 and is extended, the landfill refuse is buried in the impermeable layer 6, the landfill is buried at intervals between the landfill refuse and earth during the landfill, after the landfill operation is completed according to the volume of the landfill pit body 2, the extended impermeable layer 6 is covered on the refuse, the area of the impermeable layer 6 ensures that the refuse is completely covered, according to actual conditions, soil can be buried in the top of the impermeable layer 6, vegetation is planted to maintain water and soil, and the completion time is recorded after construction is completed.

Example 2:

a kind of refuse landfill uses the impervious barrier structure, the said refuse landfill uses the impervious barrier structure to dig the hole on the surface of the foundation, as the refuse landfill uses the pit body, lay the impervious barrier in the pit body, the impervious barrier is HDPE membrane, the impervious barrier lengthens to the periphery of the pit body, carry on the refuse filling after the impervious barrier is laid, cover the impervious barrier lengthened on the rubbish after the refuse filling, cover the earth on the surface of impervious barrier after covering, plant the vegetation, record and finish the time after finishing constructing;

example 3:

a seepage-proofing layer structure for a refuse landfill mainly comprises a foundation, a landfill body, a filling layer, a partition layer, an adsorption layer, a seepage-proofing layer, a liquid leakage pipe and a liquid outlet pipe, wherein after a pit is dug on the surface of the foundation, the landfill body, the partition layer and the adsorption layer are partitioned by a concrete slab, the landfill body is positioned at the middle position, the partition layer is positioned at the bottom of the landfill body, the adsorption layer is positioned at the left side and the right side of the landfill body, the liquid leakage pipe and the liquid outlet pipe are arranged at the bottom of the landfill body, the foundation is a selected refuse landfill position, the pit is dug on the surface of the foundation according to the designed volume, the pit body is installed with the poured landfill body, the partition layer and the adsorption layer after being dug, a connecting gap with the foundation is attached with concrete, the corresponding filling materials are filled in the adsorption layer and the filling layer, the seepage-proofing layer is adhered to the inner surface of the landfill body, and the seepage-proofing layer is an HDPE film, the barrier layer is formed by stacking and adhering at least three layers of HDPE films, the barrier layer is adhered to the inner surface of the landfill body through an adhesive, the barrier layer extends to the top and is prolonged from the inside of the landfill body, the barrier layer is buried in the barrier layer through landfill garbage, the landfill garbage and soil are covered at intervals in the landfill process, according to the volume of the landfill body, after the landfill operation is completed, the extended barrier layer is covered on the garbage, the area of the barrier layer is ensured to completely cover the garbage, according to the actual situation, the soil can be buried at the top of the barrier layer, the vegetation is used for keeping soil and water, and the completion time is recorded after the construction is completed.

And (3) effect analysis: example 1, example 2 and example 3 the inside of the landfill site was observed half a year after completion of the landfill site construction, and compared with the inside of the landfill site, the outside of the landfill site in example 1 had liquid exudation, and the outside of the landfill site in example 2 had no liquid exudation, but the filling material in the filling layer was wet and accompanied by pungent odor, and the outside of the landfill site in example 3 had no liquid exudation and no pungent odor, and example 1 was the most preferable embodiment.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.