异波折板厌氧反应器处理垃圾渗滤液实验研究

RESEARCH ON LANDFILL LEACHATE TREATMENT BY OPPOSITE FOLDED ANAEROBIC REACTOR

采用异波折板厌氧反应器处理垃圾渗滤液,研究反应器对COD的去除效率、各运行参数的变化特征以及反应器中污泥的特性。结果表明,启动初始COD负荷为0.58 kg/（m^3·d）,历时51 d启动完成,COD去除率稳定在70%以上;反应器稳定运行处理垃圾渗滤液过程中,1#、2#隔室对COD的降解起主要作用,相对去除率分别为41%和43%,同时系统形成了良好的厌氧分级群落,1#、2#隔室以产酸菌为优势菌,3#-6#隔室以产甲烷菌为优势菌。

Opposite folded anaerobic reactor was used to treat landfill leachate, and the effect of reactor on the removal rates of COD, the.variation of operating parameters and the sludge characteristics was studied. The results showed that the system was successfully start-up in 51 d at organic loading rate of 0.58 kg/ （m^3.d）. The removal rates of COD stayed above 70%. The first two compartments of COD degradation played a major role, and COD removal rates were 41% and 43%, respectively. Meanwhile, the anaerobic grading community was formed along each compartment. Acid-producing bacteria methanogen was the dominant bacteria for the first two and the other compartment respectively.