生物捕食污泥减量化系统的污泥特性  

Characteristics of activated sludge in biomass reduction system by microbial predation

作　　者：艾恒雨[1] 汪群慧[1] 谢维民[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090

出　　处：《给水排水》2006年第z1期72-75,共4页Water & Wastewater Engineering

摘　　要：通过中试分析了以减量化为目的的微型动物捕食系统中活性污泥的特性。结果表明,细菌分散培养段的悬浮污泥浓度比原生动物捕食段约高15％,比大型微型动物捕食段约高40％;微型动物的捕食作用在减少剩余污泥产率的同时,可以提高悬浮污泥的沉降性能约36％,轮虫可作为该系统污泥沉降性能的指示生物;低底物浓度下,大型微型动物的捕食活动可以增强污泥的活性。Characteristics of activated sludge in microfauna predation system was studied by a pilot-scale experiment aiming at excess sludge reduction. The following results are observed: suspended sludge concentration in dispersed culture is 15% and 40% higher than that in the protozoa and microfauna predation sects, respectively; microfauna preying on bacteria can improve (about 36%)the sludge settleability besides biomass reduction and the rotifer can be used as indicative organism of the sludge settleablity; microfauna's function can increase the activity of the suspended sludge under low substrate concentration.

关 键 词：生物捕食 污泥减量 污泥特性 微型动物 

分 类 号：TU991[建筑科学—市政工程] TU992