化学混凝对UASB工艺处理低浓度生活污水的影响  

Study on Influence of Chemical Coagulation on Treatment of Low-concentrate Sewage with UASB Process

作　　者：聂丽君[1] 

机构地区：[1]茂名学院,广东茂名525000

出　　处：《污染防治技术》2003年第2期37-38,54,共3页Pollution Control Technology

摘　　要：UASB工艺处理低浓度生活污水中 ,未充分降解的悬浮物易在UASB反应器中堆积 ,导致已颗粒化厌氧污泥的活性降低 ,影响处理效果。作者采用化学混凝预处理法来探讨对UASB工艺运行的影响。通过实验得知化学混凝实现了去除进水中的SS ,在FeCl3的投量为 70mg/L ,t(HRT)为 2h时 ,UASB工艺的COD去除率达 5 0 %～ 60 %Suspensions undegraded sufficiently tend to compile in UASB reactor during the dispose of low-concentrate sewage with UASB process, which leads to the active decrease of anaerobic sludge existing in particle morphology, therefore affecting the treatment effect of UASB process. Chemical coagulation is applied to pretreat sewage for studying its influence on the running of UASB process, the results show that chemical coagulation can successfully remove the SS in inlet water, when the dose of FeCl 3 is 70 mg/L, HRT is two hours, and the removal rate of COD is about 50%～60%, satisfactory results are obtained.

关 键 词：化学混凝 UASB工艺 污水处理 生活污水 厌氧污泥法 预处理 

分 类 号：X799.3[环境科学与工程—环境工程] X703