CN221246437U

CN221246437U - Peculiar smell control structure for landfill

Info

Publication number: CN221246437U
Application number: CN202322854847.3U
Authority: CN
Inventors: 陈紫祥; 黄东鹏; 吴海波; 刘青松; 葛芳
Original assignee: Gad Environmental Technology Co ltd
Current assignee: Gad Environmental Technology Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-07-02
Anticipated expiration: 2033-10-24

Abstract

The utility model discloses an odor control structure for a landfill, which belongs to the technical field of the landfill and adopts the technical scheme that the odor control structure comprises a landfill tank, wherein a blocking layer is arranged on the inner wall of the landfill tank, the blocking layer comprises a first clay layer, a sand stone layer, a second clay layer, an impermeable membrane, a protective membrane, a sand and stone drainage layer, geotechnical cloth and a protective soil layer which are sequentially arranged from inside to outside, the outer wall of the first clay layer is contacted with the inner wall of the landfill tank, the inner wall of the protective soil layer is contacted with a garbage layer, various pathogens which are bred by garbage and the continuous fermentation of garbage residual liquid and food can be avoided through the blocking layer, the high-concentration wastewater forms pollution and odor diffusion of soil and underground water with rainwater surface water, the upper end surface of the blocking layer is filled with garbage, the upper end surface of the soil layer is covered with the first HDPE film layer, the garbage is isolated until the last garbage layer is filled, and the garbage layers are mutually isolated according to the mode, and the odor diffusion problem can be further solved.

Description

Peculiar smell control structure for landfill

Technical Field

The utility model relates to the technical field of landfill sites, in particular to an odor control structure for a landfill site.

Background

There is no environmental protection in some dispersed landfills, but simply piled up. Such landfills can cause irreparably severe contamination of soil layers and surface waters.

When landfill is used for landfill of garbage, the surface water and soil are polluted due to the continuous fermentation of various pathogens and mosquitoes generated by the garbage, residual garbage liquid and food, and most of the landfill is not provided with a structure for avoiding odor diffusion, so that the odor in the garbage is easy to diffuse to cause the influence on the environment, and the odor pollution is serious.

Disclosure of utility model

The utility model aims at the problems and provides an odor control structure for a landfill to solve the problem that the environment is affected due to easy diffusion of odor.

The utility model is realized in such a way that an odor control structure for a landfill site comprises: the inner wall of the landfill groove is provided with a blocking layer;

The barrier layer comprises a first clay layer, a sand stone layer, a second clay layer, an impermeable membrane, a protective membrane, a sand drainage layer, geotechnical cloth and a protective soil layer which are sequentially arranged from inside to outside, wherein the outer wall of the first clay layer is in contact with the inner wall of a landfill groove, and the inner wall of the protective soil layer is in contact with the garbage layer.

In order to realize mutual isolation of garbage at each layer and reduce odor diffusion, the odor control structure for the landfill is preferable in that the upper end face of the barrier layer is covered with a garbage layer, the upper end face of the garbage layer is covered with a soil layer, and the upper end face of the soil layer is covered with a first HDPE film layer.

In order to reduce odor diffusion and rainfall infiltration, the landfill odor control structure of the present utility model is preferably such that the uppermost end of the landfill tank is covered with a second HDPE film layer.

In order to better cover the garbage layer, the peculiar smell control structure for the landfill is preferable, and the thickness of the soil layer is 1m.

In order to realize the blocking and sealing effect on the landfill groove and avoid the diffusion of odor, the odor control structure for the landfill is preferable in the utility model, and the areas of the blocking layer, the first HDPE film layer and the second HDPE film layer are matched with the landfill groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the peculiar smell control structure for the landfill, various pathogens and mosquitoes caused by garbage breeding and continuous fermentation of garbage residual liquid and food can be avoided through the barrier layer, pollution of high-concentration wastewater to soil and underground water and diffusion of odor are formed with rainwater surface water, damage of garbage to the environment can be reduced through the first clay layer and the second clay layer, decomposition of sewage percolate is reduced, diversion effect is achieved through the sand stone layer and the sand stone drainage layer, water and soil loss caused by heavy rain is prevented, meanwhile, surface vegetation can be protected, effective control of gas generated by garbage can be achieved through the protective layer and the protective film, influence on the environment caused by diffusion of odor is avoided, and pollution to the surface water caused by contact of the percolate in the garbage and the surface water can be prevented through the impermeable film;

2. This kind of peculiar smell control structure for landfill field is through the up end landfill one deck rubbish at the separation layer, covers one deck soil layer again, and the up end of soil layer covers one deck first HDPE rete, according to this kind of mode until landfill last layer rubbish, and then can realize letting every layer rubbish mutually isolated, reduces the odor diffusion problem.

Drawings

FIG. 1 is a block diagram of an odor control structure for a landfill according to the present utility model;

FIG. 2 is a cross-sectional view of a barrier layer of the present utility model;

FIG. 3 is a block diagram of a second HDPE film of the present utility model.

In the figure, 1, a landfill groove; 2. a barrier layer; 201. a first clay layer; 202. a sand layer; 203. a second clay layer; 204. an impermeable membrane; 205. a protective film; 206. a sand drainage layer; 207. geotextile; 208. protecting a soil layer; 3. a soil layer; 4. a first HDPE film layer; 5. a second HDPE film layer.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, in the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-3, an odor control structure for a landfill, comprising: the landfill groove 1, the inner wall of the landfill groove 1 is provided with a barrier layer 2;

The barrier layer 2 comprises a first clay layer 201, a sand layer 202, a second clay layer 203, an impermeable film 204, a protective film 205, a sand drainage layer 206, geotechnical cloth 207 and a protective soil layer 208 which are sequentially arranged from inside to outside, wherein the outer wall of the first clay layer 201 is in contact with the inner wall of the landfill tank 1, and the inner wall of the protective soil layer 208 is in contact with the garbage layer.

In this embodiment: the barrier layer 2 can prevent mosquitoes of various pathogens caused by the breeding of garbage, and continuous fermentation of garbage residual liquid and food, and forms high-concentration wastewater with rainwater surface water to pollute soil and underground water and spread odor, and particularly, the first clay layer 201 and the second clay layer 203 can reduce the damage of garbage to the environment, reduce the decomposition of sewage percolate, realize the effect of diversion through the sand layer 202 and the sand drainage layer 206, prevent water and soil loss caused by heavy rain, simultaneously protect surface vegetation, effectively control the gas generated by garbage through the protective soil layer 208 and the protective film 205, prevent the influence on the environment caused by the diffusion of odor, and prevent the pollution of the surface water caused by the contact of the percolate in the garbage and the surface water through the impermeable film 204.

As a technical optimization scheme of the utility model, the upper end face of the barrier layer 2 is covered with a garbage layer, the upper end face of the garbage layer is covered with a soil layer 3, and the upper end face of the soil layer 3 is covered with a first HDPE film layer 4.

In this embodiment: through landfill one deck rubbish at the up end of separation layer 2, cover one deck soil layer 3 again, the up end of soil layer 3 covers one deck first HDPE rete 4, until landfill last layer rubbish according to this kind of mode, and then can realize letting every layer rubbish mutually isolated, reduces the odor diffusion problem.

As a technical optimization scheme of the utility model, the uppermost end of the landfill tank 1 is covered with a second HDPE film layer 5.

In this embodiment: by covering the second HDPE film layer 5 on the upper end surface after the last layer of refuse is landfilled, odor diffusion and rainfall infiltration are reduced.

As a technical optimization scheme of the utility model, the thickness of the soil layer 3 is 1m.

In this embodiment: the thickness of the soil layer 3 is 1m so as to cover the garbage layer better, thereby avoiding the food moisture in the garbage layer from continuously fermenting to form high-concentration wastewater.

As a technical optimization scheme of the utility model, the areas of the barrier layer 2, the first HDPE film layer 4 and the second HDPE film layer 5 are matched with the landfill groove 1.

In this embodiment: the area through barrier layer 2 and first HDPE rete 4 and second HDPE rete 5 all with landfill 1 assorted can realize the sealed effect of barrier to landfill 1, avoid the diffusion of foul smell.

The working principle and the using flow of the utility model are as follows: firstly, in order to avoid the continuous fermentation of various pathogens mosquito caused by the breeding of garbage, residual garbage and food, and the diffusion of high-concentration wastewater to soil and groundwater formed by the residual garbage and the surface water of rainwater, a barrier layer 2 can be paved in a landfill 1 firstly, the damage of the garbage to the environment can be reduced specifically through a first clay layer 201 and a second clay layer 203, the decomposition of sewage percolate is reduced, the diversion effect is realized through a sand stone layer 202 and a sand drainage layer 206, the water and soil loss caused by heavy rain is prevented, meanwhile, the surface vegetation can be protected, the influence on the environment is avoided by the diffusion of the odor through a protective soil layer 208 and a protective film 205 and the realization of effective control of the gas generated by the garbage, the pollution of the surface water caused by the contact of the percolate in the garbage with the surface water can be prevented through a seepage-proof film 204, then, a layer of garbage is paved on the upper end surface of the barrier layer 2, a layer 3 is covered on the upper end surface of the garbage, the first HDPE film layer 4 is covered on the upper end surface of the soil layer 3, the garbage can be paved according to the structure of the sand layer 202 and the first HDPE film layer 4 until the last layer is paved on the top layer 5, namely, the exposed layer 5 is completely covered on the top layer.

Claims

1. An odor control structure for a landfill site, comprising: the device comprises a landfill groove (1), wherein a blocking layer (2) is arranged on the inner wall of the landfill groove (1);

The barrier layer (2) comprises a first clay layer (201), a sand layer (202), a second clay layer (203), an impermeable membrane (204), a protective membrane (205), a sand drainage layer (206), geotechnical cloth (207) and a protective soil layer (208) which are sequentially arranged from inside to outside, wherein the outer wall of the first clay layer (201) is in contact with the inner wall of a landfill groove (1), and the inner wall of the protective soil layer (208) is in contact with a garbage layer.

2. A landfill odor control structure according to claim 1, wherein: the upper end face of the separation layer (2) is covered with a garbage layer, the upper end face of the garbage layer is covered with a soil layer (3), and the upper end face of the soil layer (3) is covered with a first HDPE film layer (4).

3. A landfill odor control structure according to claim 1, wherein: the uppermost end of the landfill groove (1) is covered with a second HDPE film layer (5).

4. A landfill odor control structure according to claim 1, wherein: the thickness of the soil layer (3) is 1m.

5. A landfill odor control structure according to claim 1, wherein: the areas of the barrier layer (2), the first HDPE film layer (4) and the second HDPE film layer (5) are matched with the landfill groove (1).