序批式膜生物反应器-SMBR-处理生活污水的研究

第5卷第1期环境工程学报Vol.5,No.12011年1月ChineseJournalofEnvironmentalEngineeringJan.2011序批式膜生物反应器(SMBR)处理生活污水的研究李继香1王小佳1夏四清1*段亮2张彦浩3刘洋4(11同济大学污染控制与资源化研究国家重点实验室,上海200092;21中国环境科学研究院,北京100012;31山东建筑大学市政与环境工程学院,济南250101;41美国HACH公司,上海200335)摘要实验模拟生活污水,考察了连续式膜生物反应器(continuousmembranebioreactor,CMBR)和序批式膜生物反器(sequencingbatchmembranebioreactor,SMBR)的膜污染和污染物去除效果。结果表明CMBR和SMBR出水COD的平均浓度分别为15142mg/L和13142mg/L,对应的去除率为91137%和92139%;CMBR和SMBR出水NH+4-N的平均浓度分别为0122mg/L和1112mg/L,对应的去除率为99137%和95163%。稳态时CMBR膜污染速率为11633kPa/d,而SMBR膜污染速率仅为01302kPa/d。EPS分析结果表明,SMBR系统的SMP和LB各组分浓度均明显低于CMBR,因而SMBR系统膜污染速率远低于CMBR系统。关键词生活污水连续式膜生物反应器序批式膜生物反应器膜污染胞外聚合物中图分类号X70311文献标识码A文章编号1673-9108(2011)01-0023-05StudyonsequencingbatchmembranebioreactortreatingsimulatedmunicipalwastewaterLiJixiang1WangXiaojia1XiaSiqing1DuanLiang2ZhangYanhao3LiuYang4(11StateKeyLaboratoryofPollutionControlandResourceReuse,CollegeofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China;21ChineseResearchAcademyofEnvironmentalSciences,Beijing100012,China;31CollegeofMunicipalandEnvironmentalEngineering,ShandongJianzhuUniversity,Jinan250101,China;41AmericanHACHCompany,Shanghai200335,China)AbstractTheperformanceofacontinuousmembranebioreactor(CMBR)andasequencingbatchmem-branebioreactor(SMBR)wasinvestigatedwithsyntheticwastewater.Theresultsshowedthattheaverageefflu-entCODofCMBRandSMBRwere15.42mg/Land13142mg/L,respectively,andthecorrespondingaverageremovalefficiencieswere91137%and92139%,respectively.Simultaneously,theaverageeffluentNH+4-NofCMBRandSMBRwere0122mg/Land1112mg/L,respectively,andthecorrespondingaverageremovaleff-iciencieswere99137%and95163%,respectively.Membranefoulinganalysisindicatedthatthemembranefou-lingrateofCMBRwas11633kPa/d,whilethatofSMBRwasonly01302kPa/dinreadystate.Thiscanbefur-therelucidatedbythehigherconcentrationsofSMPandLBintheCMBRcomparedtothoseintheSMBR,resu-ltinginseveremembranefouling.Keywordsmunicipalwastewater;continuousmembranebioreactor;sequencingbatchmembranebioreac-tor;membranefouling;extracellular