UASB反应器处理COD/SO_4^(2-)=0.5有机废水试验  

Experimental Study on Treating Synthetic Organic Wastewater with COD/SO_4^(2-) =0.5 by Using UASB Reator

作　　者：陈浩[1] 陆正禹[1] 

机构地区：[1]清华大学环境科学与工程系,北京100084

出　　处：《城市环境与城市生态》1999年第4期15-18,共4页Urban Environment & Urban Ecology

摘　　要：本文对使用UASB反应器处理COD/SO42-=0.5有机废水(温度为35±1℃)进行了较系统的研究。试验结果表明:(1)UASB反应器可以较好地处理COD/SO42-=0.5的有机废水,COD去除负荷与SO42-去除负荷之比(ΔCOD/ΔSO42-)在1.0左右。当COD和SO42-的进水负荷分别为1.036g/L/d和2.086g/L/d时,其去除率可达70%和30%以上;而当COD和SO42-的进水负荷分别为2.489g/L/d和4.977g/L/d时,去除率仍可达50%和30%。(2)反应器中的细菌主要是硫酸盐还原菌和发酵性细菌,而产甲烷菌含量很少。(3)反应器中硫化物的抑制浓度为300mg/L,相应的硫化氢浓度为129mg/L。A systematic study was conducted on treating the synthetic wastewater where COD/SO 4 2- is about 0.5 by using UASB reactor with continuous operation.Experimental results showed that:(1)The UASB reactor could effectively treat the synthetic organic wastewater that COD/SO 4 2- is about 0.5,the ratio of COD removal loading rate to SO 4 2- removal loading rate(ΔCOD/ΔSO 4 2- ) of the waste water was about 1.0; (2) It was showed theoretically that the superior bacteria in the sludge of this UASB reactor were sulfate Reducing Bacteria(SRB) and Fermentative Bacteria(FB) with few of Methane Producing Bacteria(MPB);(3) The sulfide concentration in this UASB reactor was 300mg/L,and the relevant hydrogen sulfide concentration was 129mg/L.

关 键 词：有机废水 硫酸盐还原 UASB反应器 COD 废水处理 

分 类 号：X703[环境科学与工程—环境工程]