Phosphorus limitation in biofiltration for drinking water treatment
Bacterial growth potential(BGP) method and two parallel pilot-scale biofilters were used to investigate phosphorus limitation and itseffect on the removal of organic matters in biofiltration for drinking water treatment. Addition of phosphorus can substantially increase the BGPsof the samples. Its effect was equivalent to that of addition of a mixture of various inorganic nutrients including phosphorus. The biofilter withphosphate added into its influent performed a higher biological stability of the effluent and a higher CODMn removal than the control filter. Theseresults suggested that phosphorus was the limiting nutrient in the biofiltration and the removal efficiency of organic matters could be improved byadding phosphate into the influent.
作 者： YU Xin ZHANG Xiao-jian LIU Xiao-ling ZHAO Xiao-dong WANG Zhan-sheng 作者单位： YU Xin,ZHANG Xiao-jian,WANG Zhan-sheng(Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China)LIU Xiao-ling,ZHAO Xiao-dong(Xuzhou Water Supply Company, Xuzhou 221004, China)
刊 名： 环境科学学报(英文版) ISTIC SCI 英文刊名： JOURNAL OF ENVIRONMENTAL SCIENCES 年，卷(期)： 2003 15(4) 分类号： X703 关键词： drinking water biological treatment biofilter limiting nutrient phosphorus carbon