投加微粉强化低浓度生活污水活性污泥好氧颗粒化_张莹

投加微粉强化低浓度生活污水活性污泥好氧颗粒化张莹1，王昌稳1，李军2，赵欣1，雷泽远1，王翔3(1．临沂大学资源环境学院，山东临沂276000;2．北京工业大学建筑工程学院，北京100124;3．临沂万水润环保工程技术有限公司，山东临沂276715)摘要:以教工生活区实际生活污水为底物，考察了分别投加硅藻土和粉末活性炭对活性污泥好氧颗粒化的强化作用。结果表明:硅藻土和粉末活性炭均能有效缩短好氧颗粒污泥形成时间;投加硅藻土、粉末活性炭形成的颗粒污泥外观及内部细菌种类存在明显差别，投加微粉会降低好氧颗粒污泥中微生物种群的多样性，相对于硅藻土粉末活性炭更适于微生物附着生长;未投加微粉和投加硅藻土的反应器处理污水的效果较差;投加粉末活性炭的反应器在快速形成好氧颗粒污泥的同时还能保留更多生物量，对COD、NH+4－N的去除率分别为85．3%和87．2%。当处理低浓度生活污水时，投加粉末活性炭是促进活性污泥好氧颗粒化的有效策略。关键词:污水处理;好氧颗粒污泥;微粉;微生物群落结构中图分类号:TU992文献标识码:A文章编号:1000－4602(2018)21－0012－06基金项目:山东省自然科学基金博士基金资助项目(ZＲ2016EEB09);临沂大学博士科研启动基金资助项目(LYDX2016BS015);临沂大学2017年校级大学生创新创业训练计划项目(201710452220)通信作者:王昌稳E－mail:wangchangwen@lyu．edu．cnStrengtheningAerobicGranulationofActivatedSludgebyAddingMicroPowderinLowConcentrationSewageTreatmentZHANGYing1，WANGChang-wen1，LIJun2，ZHAOXin1，LEIZe-yuan1，WANGXiang3(1．CollegeofＲesourcesandEnvironment，LinyiUniversity，Linyi276000，China;2．CollegeofArchitectureandCivilEngineering，BeijingUniversityofTechnology，Beijing100124，China;3．LinyiWanshuirunEnvironmentalProtectionEngineeringTechnologyCo．Ltd．，Linyi276715，China)Abstract:Takingtheactualdomesticsewagefromthelivingareaoftheteachingstaffasthesub-strate，thestrengtheningeffectofaddingdiatomiteandpowderedactivatedcarbononaerobicgranulationofactivatedsludgewasinvestigated．Theresultsshowedthataddingdiatomiteandpowderedactivatedcarboncouldeffectivelyshortentheformationtimeofaerobicgranularsludge;theappearanceandinter-nalbacterialspeciesofgranularsludgeformedbyaddingdiatomiteandpowderedactivatedcarbonweresignificantlydifferent，addingmicropowderwouldreducethediversityofmicrobialpopulationinaerobicgranularsludge，andpowderedactivatedcarbonwasmoresuitableformicrobialattachmentgrowththandiatomite;thesewagetreatmentefficiencieswithoutaddingmicropowderandaddingdiatomitewerepoor;thereactoraddingpowderedactivatedcarbonquicklyformedaerobicgranularsludgewhileretainingmorebiomass，theremovalratesofCODandNH+4－Nwere85．3%and87．2%，respectively．Addingpow-·21·第34卷第21期2018年11月中国给水排水CHINAWATEＲ＆WASTEWATEＲVol．34No．21Nov．2018dereda