两种处理方法对生活污水处理效果的比较研究  

Comparative study on two different methods of treating domestic sewage

作　　者：张东明[1] 张昺林[1] 王婉如[1] 徐俊泉[1] 张楠[1] 薛林贵[1] 

机构地区：[1]兰州交通大学化学与生物工程学院,甘肃兰州730070

出　　处：《应用化工》2012年第4期595-598,601,共5页Applied Chemical Industry

基　　金：铁道部科技研究开发计划课题(2010Z001-E);甘肃省科技支撑计划项目(090NKCA079)

摘　　要：分别采用微生物法和化学絮凝法对生活污水进行处理。结果表明,微生物法对化学需氧量(COD)、氨氮(NH3-N)和生物需氧量(BOD)的去除效果比化学方法好,最佳投加浓度和处理天数分别为3%和8 d,而化学絮凝剂法对总磷(TP)和悬浮物(SS)的处理效果优于微生物法,最佳投加浓度为10%,处理4 h。在污水处理设计中,必须针对不同性质污水采用不同的方法进行处理,微生物法与化学法复合处理生活污水是行之有效的途径。Domestic sewage was treated by complex microbiological method and chemical flocculants method.The results suggested that effect of microbiological method on removal of COD,NH3-N,BOD was better than chemical flocculants method,the best bacterial suspension and treatment days ware 3% and 8 d,but the treatment effect of chemical flocculants method on TP and SS was better than microbiological method,the best chemical flocculants was 10%,treatment time was 4 h.Results indicated,in wastewater treatment design,utilizing different method for different kinds of wastewater,microbial method and chemical method compound to treat sewage were effective way.

关 键 词：复合微生物法 化学絮凝剂 生活污水 

分 类 号：X703[环境科学与工程—环境工程]