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Open type garbage landfill treatment closure method

A landfill and open technology, which is applied in the field of open landfill treatment and closure, can solve the problems of damage to the health of construction workers, large waste of clay consumption, curing the symptoms but not the root cause, and achieving the effect of harmlessness.

Active Publication Date: 2017-08-04
黑龙江省城市规划勘测设计研究院
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AI Technical Summary

Problems solved by technology

[0007] The disadvantages of this plan are: treating the symptoms but not the root cause, the leachate pollution has not been treated, the large amount of clay is wasting soil resources, the anti-seepage layer is easily damaged and the closure fails
[0010] Disadvantages of this scheme are: great odor pollutes the air during dumping, damages the health of construction workers, the organic soil needs to be deodorized before it can be used, and the pollution of groundwater has not been completely resolved
[0013] The disadvantages of this scheme are: the turning and transportation process pollutes the air and the environment along the way, damages the health of construction workers, occupies the volume of the receiving landfill and shortens its service life

Method used

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Effect test

Embodiment 1

[0045] Embodiment 1: as figure 1 , figure 2 As shown in the figure, a landfill treatment closure and coverage method, the treatment method is divided into the replacement of the closed closure structure of the sanitary landfill and the closure treatment of the old waste landfill.

[0046] An open garbage landfill treatment closure structure, in which the original garbage layer 2 is placed in the original soil layer 1, and the bottom of the original garbage layer 2 has a permeate drainage pipe 4, and the permeate drainage pipe 4 is connected to the leachate pool 3 , the leachate pool 3 is wrapped by the original soil layer 1, and there is a wrapping layer on the top of the original garbage layer 2, and the wrapping layer has a biodegradable garbage layer 6 and a vegetation layer 5, and the vegetation layer 5 wraps the biodegradable garbage layer 6, and the original garbage layer 2 Oxygen O 2 , methane CH 4 , hydrogen sulfide H 2 S, ammonia NH3, and nitrogen N 2 , the air ...

Embodiment 2

[0070] A method for sealing and covering a waste landfill, comprising a step of conducting and draining leachate at the bottom of the site and a step of biodegrading and closing the site,

[0071] In the bottom leachate drainage step, PE perforated pipes are laid on the bottom of the site by directional drilling and traction, the purpose is to export the leachate stock or reduce the leachate level, and the leachate is sent to the new landfill for disposal .

[0072] In the step of biodegradation and closure, a special biological agent for garbage treatment is used after screening, and it is implanted in the garbage dump to a depth of 80 cm to form a biodegradable layer, and 20 cm of nutrient soil is paved on the upper part of it as a vegetation layer. The green grass and shrubs are the main ones, so that the entire landfill can achieve the effect of ecological closure. At the same time, the plants dissipate the water held in the vegetation layer through the evapotranspiration...

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Abstract

The invention discloses an open type garbage landfill treatment closure method, and belongs to the technical field of environmental engineering garbage treatment. The method comprises the surface tidying step, the biodegradation layer establishing step and an evaportranspiration coverage layer establishing step. A new garbage coverage structure form established through bacteria special for urban garbage treatment is used, biodegradation and soil evaportranspiration are combined in the new garbage coverage structure form, wherein the evaportranspiration is the shorter form of the combination effect of plant transpiration and soil evaporation. According to the method, the excellent active microorganism and enzyme combination technology is adopted, organic matter, hard to degrade, in the garbage is decomposed into pollution-free nitrogen, water steam, carbon dioxide and other volatile substances within short time, and degradation of organic waste in the garbage is particularly effective. Water and rainwater in a garbage layer are evaporated through the evaportranspiration action of the soil, and pollution of garbage seepage liquid to the soil is reduced and eliminated. By means of the open type garbage landfill treatment closure method, the problem about domestic garbage treatment is solved, the operation manner is easy and convenient to conduct, inputting of a large number of funds for purchasing of equipment is not needed, and the existing treatment technology can be improved and optimized.

Description

technical field [0001] The invention relates to a treatment and closure method for an open garbage landfill, which belongs to the technical field of environmental engineering garbage treatment. Background technique [0002] Obsolete landfills, also known as stock landfills or informal landfills, refer to landfills that were formed early and have been deactivated. Due to the constraints of the times, technology and funds, the old landfills did not take any anti-pollution measures, and directly piled up municipal solid waste. [0003] Since the obsolete landfill was put into use, it has been polluting the surrounding environment and affecting the normal life and production activities of the masses. When there is heavy rain, rainwater mixed with leachate flows into farmland and rivers, causing pollution accidents. The leachate seeps into the ground, causing groundwater pollution. [0004] The treatment plan for obsolete landfills generally includes methods such as strengthen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B1/00B09B3/00B09B5/00C02F1/00
CPCC02F1/00B09B1/004B09B5/00B09B3/00B09B2101/02Y02W30/58Y02W30/30
Inventor 尚庆海张宝武
Owner 黑龙江省城市规划勘测设计研究院
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