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 polymer...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.展开更多
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)+1 种基金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
文摘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.
基金国家重点基金项目(No .3 773 0 0 70)The Research Grant Council of the University GrantsCommittee of Hong Kong(RGCRef.:HKBU20720 1M)中国科学院知识创新工程重大项目(No .KZCX1 SW 12 )
