3.结论
影响污泥产生的因素很多,如细胞溶解、隐性生长、生物捕食和解偶联等,根据这些影响因素进行适宜的工程设计可以极大地影响微生物的新陈代谢过程,从而降低剩余污泥的产量。污水好氧处理的污泥减量技术有两个不足:需氧量的增加引起曝气费用的上升;营养物的释放影响出水水质,加重了脱氮除磷的负担。长期运行产生的生物适应将给解偶联剂的应用带来负面影响。这些研究说明了污泥减量的潜力很大,需要进一步深入研究和开发污泥减量技术。
参考文献:
[1]Low E W,Chase H A.Reducing production of excess biomass during wastewater treatment[J].Water Research,1999,33(5):1119-1132.
[2]Rocher M,Goma G,Begue A P,et al.Towards a reduction in excess sludge production in activated sludge processes:biomass physicochemical treatment and biodegradation[J].Appl Microbiol Biotechnol,1999,(51):883-890.
[3]Strand S E,Harem G H,Stensel H D.Activated-sludge yield reduction using chemical uncouplers[J].Water Environment Research,1999,71(4):454-458.
[4]Egemen E,Corpening J,Padilla J,et al.Evaluation of ozonation and cryptic growth for biosolids management in wastewater treatment[J].Wat Sci Tech,1999,39(10-11):155-158.
[5]Lapara T M,Alleman J E.Thermophilic aerobic biological wastewater treatment[J].Water Research,1999,33(4):895-908.
[6]Low E W,Chase H A.The effect of maintenance energy requirements on biomass production during wastewater treatment[J].Water Research,1999,33(3):847-853.
[7]Abbassi B,Dullstein S,Rbiger N.Minimization of excess sludge production by increase of oxygen concentration in activated sludge flocs;experimental and theoretical approach[J].Water Research,2000,34(1):139-146.
[8]Ghyoot W,Verstraete W.Reduced sludge production in a two-stage membrane-assisted bioreactor[J].Water Research,2000,34(1):205-215.
[9]Wang B Z.A study on simultaneous organics and nitrogen removal by extended aeration submerged biofilm process[J].Wat Sci Tech,1991,24(5):197-214.
[10]Russel J B,Cook G M.Energetics of bacterial growth:balance of anabolic and catabolic reactions[J].Microbiol Rev,1995,59(1):48-62.
[11]Liu Y.Bioenergetic interpretation on the S0/X0 ratio in substrate-sufficient batch culture[J].Water Research,1996,30(11):2766-2770.
[12]Liu Y,Chen G H,Paul E.Effect of the S0/X0 ratio on energy uncoupling in substrate-sufficient batch culture of activated sludge[J].Water Research,1998,32(10):2883-2888.(考试大环境影响评价师)
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