好氧颗粒污泥的培养及处理味精废水
Cultivation of aerobic granule sludge and its application in treatment of monosodium glutamate wastewater
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摘要: 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NH+4-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、NH+4-N的容积负荷分别为2.4 kg/(m3?d)、0.24 kg/(m3·d)时，COD、NH+4-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。Abstract: 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.
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