In-situ remediation system and method for aerobiotic-anaerobic circulation of refuse landfill

A landfill and anaerobic cycle technology, applied in the field of environmental restoration, can solve problems such as low efficiency, strong heterogeneity, and complex components of waste, and achieve the effect of improving the biochemical environment of the pile and increasing the stability rate

Pending Publication Date: 2020-01-10
CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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Problems solved by technology

[0004] Due to the complex composition of waste, strong heterogeneity, and large regional differences, it is difficult and inefficient to restore the landfill ecology

Method used

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  • In-situ remediation system and method for aerobiotic-anaerobic circulation of refuse landfill

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, ...

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Abstract

The invention provides an in-situ remediation system for aerobiotic-anaerobic circulation of a refuse landfill. The in-situ remediation system comprises multiple aerobiotic disposal areas and anaerobic disposal areas obtained by dividing the refuse landfill. Each aerobiotic disposal area is provided with a gas extraction and injection unit, a nutrient solution injection unit and a landfill leachate extraction unit, each anaerobic disposal area is provided with a landfill leachate injection unit, and the landfill leachate injection units are connected with the landfill leachate extraction unitsof the aerobiotic disposal areas. The refuse landfill is divided into the multiple aerobiotic disposal areas and anaerobic disposal areas, air is injected into the aerobiotic disposal areas, the temperature and gas components in piles are adjusted, the biochemical environment of the piles is improved, and the microorganism species are adjusted; meanwhile, a nutrient solution is injected, the humidity of refuse in the piles is adjusted, and activity of microorganisms in the refuel piles is improved; and leachate is extracted out from the aerobiotic disposal areas and is injected into the anaerobic disposal areas after adjusting and storage, on one hand, the leachate disposal quantity and the pollutant concentration are reduced, and on the other hand, the refuel stabilization rate of the anaerobic disposal areas is improved.

Description

technical field [0001] The invention belongs to the technical field of environmental restoration, and in particular relates to an in-situ restoration system and method for an aerobic-anaerobic cycle in a landfill. Background technique [0002] With the development of my country's economy and the improvement of people's living standards, the output of municipal solid waste is also increasing. It is estimated that in 2017, the annual output of urban and rural domestic waste in my country will exceed 400 million tons. If domestic waste is not properly managed, it will have a long-term impact on my country's economy and society. [0003] Due to its large processing capacity, strong adaptability, low investment, quick return, simple operation and management, and in line with the basic national conditions of developing countries in my country, landfill technology is currently one of the main ways to dispose of waste in my country. Since the 1980s, a large number of domestic wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B1/00B09B3/00B09B5/00
CPCB09B1/004B09B3/00B09B5/00Y02W30/20
Inventor 焦婕肖国俊叶振亚赵颖
Owner CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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