Bioreactor barrier for treating landfill leachate and application of bioreactor barrier

Abstract

The invention discloses a bioreactor barrier for treating landfill leachate. A fed water dredging area, a buffer transition area, a bioreaction area and a water discharge area are sequentially arranged in the flowing direction of the landfill leachate, wherein the bioreaction area is filled with activated carbon and zeolite with the grain size being 1-2 mm, manganese sand with the grain size being 2-3 mm and ceramsite with the grain size being 4-5 mm. The bioreactor barrier for treating landfill leachate has the characteristics as follows: (1) filling materials used for the reactor barrier are pollution-free, easy to obtain and wide in sources, and the reactor barrier is constructed with a simple and easy method and has long service life; (2) the treatment effect is excellent: the COD removal rate reaches 92% or above, the inhibition rate of effluent luminous bacteria is basically 30% or below, the total anti-oxidative capacity gradually increases with the reaction time passing by, and poisoning weakening of high-toxic landfill leachate is realized; (3) higher biome metabolic activity can be kept in each position in the bioreaction area, that is, the pollutant decomposition capability is high.

Description

technical field [0001] The invention belongs to the technical field of landfill leachate treatment, and in particular relates to a biological reaction wall for treating landfill leachate, and also relates to a method for using the biological reaction wall to treat landfill leachate. Background technique [0002] As a "by-product" of the landfill process, landfill leachate is a kind of high-concentration organic wastewater, which not only contains carcinogens, but also contains more than 20 toxic and harmful pollutants, which are listed as "environmental priority pollutants" "Blacklist" has complex components, including a variety of organic pollutants, heavy metals, high ammonia nitrogen, etc., and the water quality and quantity fluctuate greatly; if it is not handled properly, it will seriously pollute the atmosphere, surface water and groundwater, causing secondary pollution and seriously affecting the environment and human beings healthy. [0003] Groundwater pollution is...

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Problems solved by technology

[0002] As a "by-product" of the landfill process, landfill leachate is a kind of high-concentration organic wastewater, which not only contains carcinogens, but also contains more than 20 toxic and harmful pollutants, which are listed as "environmental priority pollutants" "Blacklist" has complex components, including a variety of organic pollutants, heavy metals, high ammonia nitrogen, etc., and the water quality and quantity fluctuate greatly; if it is not handled properly, it will seriously pollute the atmosphere, surface water and groundwater, causing secondary pollution and seriously affecting the environment and human beings healthy

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