活性污泥对有机污染物的吸附研究  

Study on Adsorption of Organic Pollutants by Activated Sludge

作　　者：梅益军[1] 沈耀良[1] 文湘华[2] 张杰[2] 刘宏波[2] 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215011 [2]清华大学环境系,北京100048

出　　处：《环境科技》2010年第5期1-3,共3页Environmental Science and Technology

基　　金：十一五"国家水体污染控制与治理科技重大专项(2009ZX07313)"环太湖河网地区城市水环境整治技术集成与综合示范

摘　　要：通过中试试验,分析了活性污泥对污染物吸附的影响因素,并考察了活性污泥对城市污水中污染物的吸附效果。试验研究表明,污泥浓度(MLSS)、水力停留时间(HRT)和污泥龄(SRT)对活性污泥吸附污染物的效果有一定的影响,但污泥龄影响较小。在污泥质量浓度为3～5g/L,HRT为36min和SRT为2d的运行参数下,活性污泥对COD,SS,TN和TP吸附效果分别为70.7%,87.7%,30.2%和72.2%。The adsorption efficiencies of the pollutants in municipal wastewater by activated sludge were investigated in a pilot test, and its main influences were analyzed. Results showed that MISS, HRT and SRT had a certain influence on the adsorption efficiency of pollutants, but the influence of SRT was slight. Moreover, when MISS was 3 ~ 5 g/L, HRT was 36 min and SRT was 2 d, removal rates of COD, SS, TN and TP by activated sludge adsorption were 70.7%, 87.7%, 30.2% and 72.2%, respectively.

关 键 词：活性污泥 吸附 有机污染物 城市污水 

分 类 号：X5[环境科学与工程—环境工程]