Nutrient Removal of Static Lake Water by Constructed Biological Filter
Abstrats: Biological filter is currently evolving into an ecological, efficiently alternative method for many lake water remediation. Conventional filter system such as constructed wetland was not successful at nitrification. In this study, zeolite and coal cinder were chosen as main substrates to construct micro-ecological filter to remedy static lake water. Dominant bacteria colony was screened out and domesticated to intensify remedying process. It was shown that, removal efficiency of NH4 + -N, TN, and TP by and dominant colony increased with retention time. Removal efficiency of TN by dominant consortium system was the highest. Abundant nitrous and nitride bacteria in dominant colony made nitrification swift and thorough, cut accumulation of inter-product and hastened nitrogen removal. Dominant bacteria colony kept high activity for a long time, which intensified removal of nitrogenous contamination. Cooperation of multi-colony enhanced P removal.
biological remediation lake water ecological filter bacteria colony
A.Shu-Yu LIU B.Ming-hong WU C.Fang MA D. Chein-Chi CHANG
School of Environment and chemical engineering Shanghai University, Shanghai 201800 China School of Municipal and Environmental Engineering , Harbin Institute of Technology , Harbin 150090,
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）