高有机负荷下UASB及UBF处理垃圾渗滤液效果对比

Effect Comparison of UASB and UBF on Landfill Leachate Treatment under High Organic Loading

摘要: 在（38±2）℃条件下，分别采用UASB和UBF厌氧反应器技术对生活垃圾渗滤液进行处理。结果表明：在厌氧运行过程中，有机负荷提升至15 kg COD（m3·d），HRT为5 d，UASB厌氧反应器原料产气率为25.4~29.6 m3t，COD去除率高于94%，容积产气率为5.77~6.02 m3m3，CH4含量70%以上，pH值为7.21~8.25；UBF厌氧反应器原料产气率为22.7~25.4 m3t，COD去除率高于90%，容积产气率为4.99~5.60 m3m3，CH4含量66%左右，pH值为7.29~8.01。UASB厌氧反应器处理生活垃圾渗滤液效果优于UBF厌氧反应器。

Abstract: Under the condition of（38±2）℃，landfill leachate was treated by UASB and UBF anaerobic technology under high organic loading rate.Results showed that in the anaerobic process，the organic loading rate increased to 15 kg COD（m3·d）and HRT was 5 d.In UASB anaerobic reactor，raw material gas production rate was 25.4~29.6 m3t，the removal rate of COD could be more than 94%，volumetric biogas production rate was 5.77~6.02 m3m3，content of CH4 was more than 70%，and pH was 7.21~8.25.In UBF anaerobic reactor，raw material gas production rate was 22.7~25.4 m3t，removal rate of COD could be more than 90%，volumetric biogas production rate was 4.99~5.60 m3m3，content of CH4 was about 66%，and pH was 7.29~8.01.UASB anaerobic technology was better than UBF anaerobic technology in the treatment of landfill leachate.