Variation characteristics of leachate quality in a semi-aerobic municipal solid waste landfill

Abstract

Abstract: A large-scale semi-aerobic landfill set(21 m?3.8 m?6.0 m) was constructed to study the variation characteristics of pollutants in the landfill leachate.The results showed that after 39 weeks,the concentrations of COD_Cr,BOD₅ and NH⁺₃-N in the leachate declined rapidly,which reached 173,30 and 15 mg稬^-1 respectively,and the reducing rate of NH⁺₃-N was 99.6%.The pH value was below 7 during the first 2 weeks,but became weak alkaline after three weeks.Based on the experimental data,the attenuation equations of pollutants in the leachate were built.

Key words: Semi-aerobic, Municipal solid waste, Landfill, Leachate

CLC Number:

YANG Yufei, HUANG Qifei, WANG Qi, LIU Yuqiang, DONG Lu . Variation characteristics of leachate quality in a semi-aerobic municipal solid waste landfill[J]. Chinese Journal of Applied Ecology, 2005, 16(11): 2168-2172.

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