粪便污水与城市污水混合脱氮试验  

Denitrogenation test for mixed fecal and municipal wastewater

作　　者：石明岩[1] 莫东华[1] 冯兆继[1] 余建恒 王少林 夏耿东 

机构地区：[1]广州大学土木工程学院,广东广州510006 [2]广州市大坦沙污水处理厂,广东广州510163

出　　处：《兰州理工大学学报》2009年第4期65-69,共5页Journal of Lanzhou University of Technology

基　　金：广州市科技计划项目(2007J1-Q411);广州市属高校科技计划项目(08C058)

摘　　要：采用广州市D污水厂倒置A^2/O工艺的模拟装置合并处理粪便污水与城市污水脱氮.结果表明,HRT是脱氮和有机物去除最主要的影响因素,污泥回流比对脱氮影响最小.水温28~35℃时,最优工况确定为氨氮污泥负荷0.018 0 kg NH3-N/kg MLSS.d、SRT 20 d、HRT 8.0 h、DO 2.0 mg.L-1、R 80%r、150%,COD、NH3-N和TN平均去除率分别达到85.5%、98.5%和63.7%,且出水浓度均可满足《城镇污水处理厂污染物排放标准》（GB18918—2002）一级A标准.A simulation device of inverted A^2/O process in Guangzhou D-Sewage Treatment Plant was used to treat the mixed fecal and municipal wastewater with denitrogenation.The result showed that HRT was the key influencing factor on organism and nitrogen removal efficiency and the sludge backflow ratio had minimal influence on nitrogen removal.In conditions of water temperature from 28 to 35 ℃,the optimum operation parameters of nitrogen and organism removal were as follows： the average of ammonia sludge load was 0. 018 0 kg NH3--N/kg MLSS. d, SRT 20 d, HRT 8. 0 h, DO 2. 0 mg· L^-1, R 80%,r 150%. The average removal rate of COD, NH3--N and TN was 85. 5%, 98. 5% and 63.7%, respectively. The concentration of the effluent was fully agreeable to Discharge standard of pollutants for municipal zvasterwater treatment plant （GB 18918--2002 IA）.

关 键 词：倒置A2/O工艺 合并处理 粪便污水 城市污水 脱氮 HRT 

分 类 号：X703.1[环境科学与工程—环境工程]