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Leachate quality of semi-aerobic landfill and fitting of COD degradation.

Zha Kun, Dan Liu, Jian Liu

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Abstract

A large scale semi-aerobic landfill set with 10m×10m×5m was constructed at Chang'an Landfill in Chengdu City,Sichuan Province to study the characteristics of leachate quality.Results showed that after 697days,the concentration of COD dropped from 65324mg/L to 2013mg/L,which reduced by 96.92%.Degradation rate of ammonia nitrogen was low,for the diameter of collection pipe was too small for oxygen entrancing into the landfill.Based on the experimental data,the trend of COD was fitted by Excel and Lingo with a result that Lingo was more effective.

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What this paper is about

A large scale semi-aerobic landfill set with 10m×10m×5m was constructed at Chang'an Landfill in Chengdu City,Sichuan Province to study the characteristics of leachate quality.Results showed that after 697days,the concentration of COD dropped from 65324mg/L to 2013mg/L,which reduced by 96.92%.Degradation rate of ammonia nitrogen was low,for the diameter of collection pipe was too small for oxygen entrancing into the landfill.Based on the experimental data,the trend of COD was fitted by Excel and Lingo with a result that Lingo was more effective.

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Available abstract

A large scale semi-aerobic landfill set with 10m×10m×5m was constructed at Chang'an Landfill in Chengdu City,Sichuan Province to study the characteristics of leachate quality.Results showed that after 697days,the concentration of COD dropped from 65324mg/L to 2013mg/L,which reduced by 96.92%.Degradation rate of ammonia nitrogen was low,for the diameter of collection pipe was too small for oxygen entrancing into the landfill.Based on the experimental data,the trend of COD was fitted by Excel and Lingo with a result that Lingo was more effective.

Key concepts: Leachate, Environmental science, Chemical oxygen demand, Degradation (telecommunications), Water quality, Environmental engineering, Waste management, Environmental chemistry

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