两级生物膜处理合成洗涤剂废水_李健
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2020-01-08 20:46:33
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StudyonthetreatmentofsyntheticdetergentwastewaterbyanaerobicbiofilterandaerobicbiologicalcontactoxidationprocessLiJian1,2,YuHongjiang1,LiQianding1(1.Xi’anUniversityofPetroleum,Xi’an710065,China;2.Yan’anRefinery,Yan’an727406,China)两级生物膜处理合成洗涤剂废水李健1,2,于洪江1,李谦定1(1.西安石油大学,陕西西安710065;2.延安炼油厂,陕西延安727406)[摘要]采用厌氧生物滤池(AF)—好氧生物接触氧化(BCO)联合工艺对合成洗涤剂(LAS)废水进行处理试验。结果表明,AF反应器在HRT=24h、温度(32±2)℃、pH为7~8、营养母液质量浓度5mg/L条件下,BCO反应器在HRT=12h、常温、DO为4~5mg/L条件下,对LAS和COD的去除率分别可达到85%和95%,出水达到国家《污水综合排放标准》(GB8978—1996)规定的一级排放标准。[关键词]厌氧生物滤池;好氧生物接触氧化;生物膜;合成洗涤剂废水[中图分类号]TQ085[文献标识码]A[文章编号]1005-829X(2008)12-0093-03Abstract:Theanaerobicbiofilter(AF)andaerobicbiologicalcontactoxidation(BCO)processhavebeenusedfortreatingsyntheticdetergent(LAS)wastewater.TheresultsshowthatintheAFreactortheconditionsare:HRT=24h,temperatureis(32±2)℃,pHis7-8andnutrientsolutionmassconcentrationis5mg/L,andintheBCOreactortheconditionsare:HRT=12h,DOis4-5mg/Landatroomtemperature,theremovalratesofLASandCODare85%and95%,respectively.Theindexesoftheeffl
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