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Application of CASS in Treating Domestic Sewage at Low Temperatures
The feasibility of using CASS technique for treating domestic sewage at low temperatures was investigated. The results indicate that for domestic sewage (averagely, ρ(BOD5)=295.7 mg/L; ρ(CODCr )= 811.7 mg/L; ρ(SS)= 119.6 mg/L), the removal rates are 95.3%, 85.7%, 91%, respectively. The CASS technique is operable in a wide range of temperature (about -5～20 ℃), but φ(S) and ρ(S) values are higher at low temperature than those at normal temperature. A low temperature is good for oxygen transmission and the cyclic fluctuation of DO (dissolved oxygen) is benefit for the removal of P and N, preventing the sludge from bulking.
作 者： 何绪文 桑义敏 王守中 吴兵 作者单位： Department of Chemical and Environmental Engineering, CUMT, Beijing, 100083, P.R.China 刊 名： 中国矿业大学学报(英文版) ISTIC EI 英文刊名： JOURNAL OF CHINA UNIVERSITY OF MINING AND TECHNOLOGY 年，卷(期)： 2001 11(2) 分类号： X5 关键词： CASS domestic sewage treatment active sludge life form【Application of CASS in Treating Dome】相关文章：
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