好氧颗粒污泥的培养及处理味精废水

以厌氧颗粒污泥为接种污泥,在模拟废水条件下利用SBR 35 d成功培养出了具有同步硝化反硝化作用的好氧颗粒污泥,反应器对COD和NH4+-N去除率分别高于95%和99%。将该反应器用于处理味精废水,当COD、NH4+-N的容积负荷分别为2.4 kg/(m3.d)、0.24 kg/(m3.d)时,COD、NH4+-N和TN去除率分别高于90%、99%和85%。处理味精废水后的颗粒污泥粒径由之前的0.8～2.5 mm减小至0.6～1.8 mm,颗粒结构较之前更加密实。

Cultivation of aerobic granule sludge and its application in treatment of monosodium glutamate wastewater

Using anaerobic granular sludge as the vicinal sludge,after 35 days operation,aerobic granular sludge was formed in sequencing batch reactor.This SBR system showed a very stable organic carbon and ammonium removal performance.The removal rate for organic carbon and ammonium could reach more than 95% and 99%,respectively.This systerm was applied to monosodium glutamate wastewater treatment.Under the conditions of organic volume rate of 2.4 kg/(m3·d) and ammonia volume rate of 0.24 kg/(m3·d),the COD,NH+4-N and TN removal efficiencies could reach more than 90%,99% and 85%,respectively.After treat monosodium glutamate wastewater,the sludge particle size reduced from 0.8~2.5 mm to 0.6~1.8 mm,the granule structure was more strength.