投加聚氨酯泡沫微生物固定化载体的SBBR脱氮除磷实验研究

第5卷�第1期环境工程学报Vol.5,No.12011年1月ChineseJournalofEnvironmentalEngineeringJan.2011投加聚氨酯泡沫微生物固定化载体的SBBR脱氮除磷实验研究李亚峰1�姚敬博1,2�郝�滢1�李�进3�王�勋2�秦亚敏1(1.沈阳建筑大学市政与环境工程学院,沈阳110168;2.中国市政工程东北设计研究院,长春130021;3.抚顺市规划设计研究院管网室,抚顺113008)摘�要�研究投加聚氨酯泡沫微生物固定化载体的SBBR脱氮除磷效果及机理。在SBR中填充聚氨酯泡沫微生物固定化载体,形成序批式生物膜反应器(SBBR)。SBBR以实际生活污水为处理对象,在A/O运行工况下对微生物进行培养驯化,并在SBBR运行稳定时研究其脱氮除磷效果。研究结果表明,SBBR中的聚氨酯泡沫微生物固定化载体在空间上形成了好氧/缺氧/厌氧微环境;SBBR不仅对有机物有较好的处理效果,而且获得较好的同时硝化反硝化(SND)效果,COD、NH+4�N、TN和TP的平均去除率分别达到84�23%、96�94%、68�63%和91�38%。投加聚氨酯泡沫微生物固定化载体的SB�BR对生活污水具有理想的处理效果,处理后出水除TP外均达到达到了国家�城镇污水处理厂污染物排放标准�(GB18918�2002)一级A标准,TP接近一级A标准。关键词�聚氨酯泡沫微生物固定化载体�同时硝化反硝化反应(SND)�微生物固定化技术�同步脱氮除磷中图分类号�X703��文献标识码�A��文章编号�1673�9108(2011)01�0038�05Studyofaddingpolyurethanefoamasmicro�organismsimmobilizedcarriersinsequencingbatchbiofilmreactortoremovenitrogenandphosphorusLiYafeng1�YaoJingbo1,2�HaoYing1�LiJin3�WangXun2�QinYamin1(1.SchoolofMunicipalandEnvironmentalEngineering,ShenyangJianzhuUniversity,Shenyang110168,China;2.ChinaNortheastMunicipalEngineeringDesignandResearch,Changchun130021,China;3.PipeNetworkRoominFushunPlanning&DesignInstitute,Fushun113008,China)Abstract�TheeffectofnitrogenandphosphorusremovalinSBBRfilledwithpolyurethanefoamanditsmechanismwerestudiedinthisexperimen.tPolyurethanefoamwhichisusedasmicro�organismsimmobilizedcarrierswasputintoSBR,toformasequencingbatchbiofilmreactor(SBBR).Themicro�organismswereculti�vatedundertheA/Ooperationmode,andthenthenitrogenandphosphorusremovalofdomesticsewageinSBBRwasstudiedunderstableoperation.TheresultsshowthatthecarrierwhichwasusedintheSBBR,createdaero�bic�anoxic�anaerobicmicro�environmentinspace,removedtheorganicwellandalsoappearedagoodphenome�nonofsimultaneousnitrificationanddenitrification(SND).TheaverageremovalratesofCOD,NH+4�N,TN,TPwere84�23%,96�94%,68�63%and91.38%,respectively.TheSBBRfilledwithpolyurethanecarrierscoulda�chieveasuccessfulgoalinthedomesticsewagetreatmen.tThequalityoftheeffluentmeetstheGrade�Are�quirementsofdischargestandardofpollutantsformunicipalwastewatertreat