间歇曝气复合型MBR处理含盐榨菜废水研究_杜俊_何强_柴宏祥_赵俊
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2020-01-13 08:42:05
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间歇曝气复合型MBR处理含盐榨菜废水研究杜俊,何强,柴宏祥,赵俊(重庆大学三峡库区生态环境教育部重点实验室,重庆400045)摘要:采用间歇曝气复合型膜生物反应器(MBR)对含盐榨菜废水进行处理研究。试验结果表明:在进水COD为320~580mg/L、氨氮为106~190mg/L、可溶性磷酸盐为27~45mg/L、pH值为7.5~9、SS为106~245mg/L时,反应器运行稳定后,对COD、氨氮、磷酸盐、SS的平均去除率分别为66%、94.16%、33.94%、99%。试验还发现,含盐环境下微生物所分泌的大量胞外聚合物是造成膜污染的主要原因。关键词:榨菜废水;复合型MBR;间歇曝气中图分类号:X703文献标识码:C文章编号:1000-4602(2014)01-0070-03TreatmentofHigh-salinityMustardTuberWastewaterbyCompound-typeMBRwithIntermittentAerationDUJun,HEQiang,CHAIHong-xiang,ZHAOJun(KeyLaboratoryofThreeGorgesReservoirRegion’sEco-Environment<MinistryofEducation>,ChongqingUniversity,Chongqing400045,China)Abstract:Compound-typeMBRwithintermittentaerationwasusedtotreathigh-salinitymustardtuberwastewater.TheresultsshowedthattheaverageremovalratesofCOD,ammonianitrogen,solublephosphateandSSwere66%,94.16%,33.94%and99%,respectively.TheoperatingconditionswereCODof320to580mg/L,ammonianitrogenof106to190mg/L,solublephosphateof27to45mg/L,pHof7.5to9,andSSof106to245mg/L.Also,theextracellularpolymericsubstances(EPS)excre-
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