原生动物在活性污泥中的作用  

Role of Protozoa in Activated-Sludge.

作　　者：陈声贵[1] 许木启[1] 杨向平[2] 甘一萍[2] 翟家骥[2] 刘伟岩[2] 邵永怡[2] 

机构地区：[1]中国科学院动物研究所,北京100080 [2]北京城市排水公司,北京100022

出　　处：《生态学杂志》2002年第3期47-51,80,共6页Chinese Journal of Ecology

基　　金：国家自然科学基金项目 (No .30 170 15 9);国家自然科学基金项目 (No .39970 138);国家自然科学基金重点项目 (No .39730 0 70 );中国科学院院长择优基金资助

摘　　要：Protozoa in activated sludge can improve the sewage treatment,reduce the mass of sludge and indicate the quality of effluent.The following effects are reviewed:① extretion of growth factors and extracellular polymers; ②preying on bacteria.Preying changes the structure of bacteria community,stimulates the growth of bacteria in flocs and benefits the sediment of the activated sludge.Protozoa grazing on fecal bacteria and in the suspended liquor is essential for the production of good quality effluent.Protozoa in activated sludge can improve the sewage treatment,reduce the mass of sludge and indicate the quality of effluent.The following effects are reviewed:① extretion of growth factors and extracellular polymers; ②preying on bacteria.Preying changes the structure of bacteria community,stimulates the growth of bacteria in flocs and benefits the sediment of the activated sludge.Protozoa grazing on fecal bacteria and in the suspended liquor is essential for the production of good quality effluent.

关 键 词：原生动物 活性污泥 作用 捕食 污水处理 

分 类 号：X703[环境科学与工程—环境工程] X172