生物流化床处理造纸中段废水生物膜性质的研究  

Research on Characteristics of Biof ilm of Biological Fluidized Bed in Treating Middle Stage Wastewater from Paper Mill

作　　者：疏明君[1] 李友明[1] 谢澄[1] 陈中豪[1] 

机构地区：[1]华南理工大学造纸与污染控制国家工程中心,广东广州510641

出　　处：《工业用水与废水》2002年第4期32-35,共4页Industrial Water & Wastewater

摘　　要：采用生物流化床处理造纸中段废水。试验中观测到,生物膜的生长过程是由局部扩散到整个载体表面,生物膜中起骨架作用的是累枝虫和丝状物。中段废水中含有有机氯化物对生物膜活性有一定抑制作用,但当中段废水的比例增加到80%时,生物膜的比耗氧速率(SOUR)仍在80mg犤O犦·L/(g犤MLSS犦·h)以上。实验还得出最佳生物膜厚度为45μm。Biological fluidized bed was used to treat middle stage wastewater from p aper mill.The experiments showed that biofilm grew from the part of the surface to the whole surface o f the carrier.Epistylis and threadl ike formed the framework.Organic chlorides in the wastewater inhibited the activity of the biofilm.But even mid dle stage water accounted for 80%of the sample wastewater,the SOUR of biofilm exceeded 80mg·L /(g·h).Experiments also showed the optimum thickness of the biofilm was 45μm.

关 键 词：生物流化床 造纸 中段废水 生物膜 SOUR 膜厚 水力停留时间 废水处理 

分 类 号：X793.03[环境科学与工程—环境工程]