垃圾填埋场渗沥液厌氧处理的研究

Study on the Treatment of the Leachate from Landfill by Anaerobic Processes

研究了两相厌氧消化系统和单相的上流式厌氧污泥床──生物滤床组合型系统（ＵＢＦ）在不同条件下处理垃圾填埋场渗沥液的运行特性，结果表明，两相厌氧消化用于处理本研究用的废水没有显著效果．采用单相ＵＢＦ系统，当温度为３５℃，水力停留时间为１２ｈ，ＣＯＤＣｒ容积负荷率为每天每立方米１０ｋｇ，每天每千克ＶＳＳ的ＣＯＤＣｒ污泥负荷率为０．５３ｋｇ时，ＣＯＤＣｒ去除率平均为的９４％，产气量４．７７Ｌ·Ｌ－１·ｄ－１．其中甲烷含量为７５．８％．

The performance of two-phase anaerobic process and UBF process treating the leachate in the landfill in various conditions was presented. The results indicated that two-phase anaerobic process had no remarkable effects on treating the leachate. When temperature was 35℃. HRT was 12 hours, volumeyric loading rate was 10kg CODcr / (m3·d). Sludge loading rate was 0.53 kg COD/kg VSS·d, the average CODcr removal rate of the single-phase UBF process was 94 %,volumetric biogas production was 4.77 L·L-1·d-1 and CH4 content was about 75.8 %.