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Effect of Alkalinity Variations on Recirculated Anaerobie Bioreactor Landfill

Jiang Juan

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Abstract

Two simulated landfill bioreactors were established,in which column 1 is leachate recirculated only,column 2 is operated by leachate recirculated with alkalinity increase.The changes of pH,COD,BOD_5,NH~+_4—N,TN,VFA,humic acid,conductivity?of leachate and landfill gas were investigated.The results demonstrate that alkalinity addition has positive effects on removal of COD,BOD_5 and VFA of leachate,the methane production and the stabilization of landfill system.

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What this paper is about

Two simulated landfill bioreactors were established,in which column 1 is leachate recirculated only,column 2 is operated by leachate recirculated with alkalinity increase.The changes of pH,COD,BOD_5,NH~+_4—N,TN,VFA,humic acid,conductivity?of leachate and landfill gas were investigated.The results demonstrate that alkalinity addition has positive effects on removal of COD,BOD_5 and VFA of leachate,the methane production and the stabilization of landfill system.

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Available abstract

Two simulated landfill bioreactors were established,in which column 1 is leachate recirculated only,column 2 is operated by leachate recirculated with alkalinity increase.The changes of pH,COD,BOD_5,NH~+_4—N,TN,VFA,humic acid,conductivity?of leachate and landfill gas were investigated.The results demonstrate that alkalinity addition has positive effects on removal of COD,BOD_5 and VFA of leachate,the methane production and the stabilization of landfill system.

Key concepts: Leachate, Alkalinity, Bioreactor, Methane, Waste management, Environmental science, Environmental engineering, Chemistry

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Effect of Alkalinity Variations on Recirculated Anaerobie Bioreactor Landfill — Research Paper | ScholarLens