Contact reaction wall and method for treating landfill leachate

Abstract

The invention discloses a contact reaction wall and a method for treating landfill leachate, and belongs to the technical field of environmental treatment. An influent water dredging zone, a buffer transition zone, a biological reaction zone and a water effluent zone are sequentially arranged in the wall body of the reaction wall, and a filler coarse quartz sands and a filler fine quartz sands canadsorb particulate matters; a sewage treatment strain can effectively remove multiple contaminants without chemical coagulation or coagulation supporting process; activated carbon can effectively remove the color and the odor; zeolite has excellent adsorption and ion exchange properties; manganese sands have an excellent removal effect on arsenic and the like; ceramsite is an ideal carrier for abiofilm; and a micro-electrolysis cell system electrolytically degrades parts of refractory substances in order to facilitate subsequent biodegradation, stimulate the growth and metabolism of microorganisms and enhance the biodegradation process. Fillers in all the zones of the reaction wall are reasonably matched, have no pollution, are easy to obtain, and have wide sources, so the landfill leachate can be treated to the greatest extent; and the reaction wall also has the advantages of simple overall structure, reasonable design, low cost and low energy consumption.

Description

technical field [0001] The invention belongs to the technical field of environmental treatment, and in particular relates to a contact reaction wall and a method for treating landfill leachate. Background technique [0002] Landfill leachate is a kind of organic wastewater with high concentration, which not only contains carcinogens, but also more than 20 kinds of toxic and harmful pollutants. organic pollutants, heavy metals, high ammonia nitrogen, etc.), water quality (COD, BOD, and biodegradability decrease with the increase of landfill time and gradually maintain at a lower level) and large fluctuations in water volume (leachate production is affected by various Factors such as precipitation, evaporation, ground loss, etc.), landfill leachate as a "by-product" in the landfill process, if not handled properly, will seriously pollute the atmosphere, surface water and groundwater, causing secondary pollution, serious affect the environment and human health. [0003] At pr...

AI Technical Summary

Problems solved by technology

The permeable reaction wall has the advantages of little impact on the environment, easy operation, low cost, good effect, strong sealing performance, and good tightness, but its disadvantage is that the structure of the permeable reaction wall is complicated, and the wall will be damaged as time goes by. The structure is easily damaged by corrosion, and it is not easy to repair and clean, resulting in unnecessary consumption

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