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《Earth and Environment》 2008-01
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ACTIVATED SLUDGE EXPANSION AND AFFECTING FACTORS

WU Hong-juan1,LIU Chao 2,LUO Yi3(1. School of Civil Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043,China; 2. Shijiazhuang Qiaodong Wastewater Treatment Plant, Shijiazhuang 050026,China; 3. Hebei Institute of Architecture and Civil Engineering, Zhangjiakou 075024, China)  
Activated sludge bulking is an important factor, which affects the effluent quality in wastewater treatment process. This paper generalized the characteristics and classification of sludge expansion. Then the wastewater quality, nutritional ingredient, pH value, sludge loading, and DO concentrations were studied and the results showed that sludge expansion is caused by different factors in different water penetration quality and operating conditions.
【Fund】: 石家庄市桥东污水处理厂内部研究项目
【CateGory Index】: X703
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