高效低耗4SMBR污水处理新技术的研发与应用廖志民

高效低耗4S-MBR污水处理新技术的研发与应用廖志民(江西金达莱环保研发中心有限公司,江西南昌330100)　　　:　膜生物反应器(MBR)的研究和应用近年来受到了广泛关注。利用兼性厌氧菌的生物降解特性,成功研发出一种高效低耗新型膜生物反应器———4S-MBR。建立了兼性厌氧菌占80%的高效兼氧MBR,当污泥负荷维持在0.072kgCOD/(kgMLSS·d)时,有机剩余污泥实现了近零排放;提出并应用了兼氧生物气化除磷新工艺,除磷率为70%,为除磷提供了新途径;此外,将射流曝气技术引入MBR,形成气水联合冲刷膜丝,进一步降低了能耗,提高了处理效率。　　:　4S-MBR;　兼氧MBR;　剩余污泥;　气化除磷;　射流曝气:X703　　:B　　:1000-4602(2010)10-0035-03Research,DevelopmentandApplicationofHighEfficiencyandLowConsumption4S-MBRforWastewaterTreatmentLIAOZhi-min(JiangxiJindalaiEnvironmentalProtectionResearchandDevelopmentCenterCo.Ltd.,Nanchang330100,China)　　Abstract:　Inrecentyears,theresearchandapplicationofmembranebioreactor(MBR)hasat-tractedawidespreadattention.Ahighefficiencyandlowconsumptionmembranebioreactor(4S-MBR)wassuccessfullydevelopedusingbiodegradationpropertiesoffacultativebacteria.Inthe4S-MBR,thefacultativeanaerobesaccountforabout80%.Whenthesludgeloadmaintainsat0.072kgCOD/(kgMLSS·d),theorganicexcesssludgeachievesanear-zeroemission.Anewbiogasificationtechnolo-gyforphosphorusremovalwasputforwardandapplied.Theremovalrateis70%.Anewwayforphos-phorusremovalisprovided.Inaddition,thejetaerationtechnologyisusedinthe4S-MBR,formingair-waterbackwashingtofurtherreducetheenergyconsumptionandimprovethetreatmentefficiency.　　Keywords:　4S-MBR;　facultativeMBR;　residualsludge;　gasificationphosphorusremoval;jetaeration　　MBR、[1],。———4S-MBR,(4Successfully),4S-MBR。:①　MBR;②　;③　;④　MBR。1　4S-MBR工艺技术1.1　MBR,,(:200910115352.0,:12/552512,:9169241.8,:2009-218154),,。①　MBRMBR1。·35·第26卷　第10期2010年5月　　　　　　　　　　　　中国给水排水CHINAWATERWASTEWATER　　　　　　　　　　　　　Vol.26No.10May20101　MBRFig.1　FlowchartoffacultativeMBR　　,,。,,,。,,。②　MBR,MBR。,80%(1)。1　MBRTab.1　DetectedresultsofbacteriumcategoryinfacultativeMBR　/%40A30-GCA101055　　③　MBRMBR,,。,。,。MBR(SV)(SVI),,(MLVSS/MLSS65%)。,,SVSVI。④　MBRMBR、、、、、。,80m3/d,COD60～600mg/L,(HRT)4.5h,,COD,COD30mg/L,COD93%,0.36kW·h/m3。,。,MBR、,MBR40%,,。1.2　,MBR,,,,,(:,:200910115349.9)。,。,MLVSSMLSS。①　MLVSS6,,MLVSS10433～12869mg/L,11728mg/L;MLVSS8851～11426mg/L,10279mg/L,MLVSS。②　MLSSMLVSSMLSSMLVSS。,(14)3107mg/L;(626)5830mg/L,2723mg/L。,。③　F/M,F/M·36·第26卷　第10期　　　　　　　　　　　　　　中国给水排水　　　　　　　　　　　　、。,CO2、H2O[2];。,,CO2、H2O;。,,,CO2、H2O。,[3]。,,0.072kgCOD/(kgMLSS·d)。Rosenberger[4]。,,,。[5],。1.3　,(:200910115350.1),,。①　MBR,,、。,2.82mg/L,0.84mg/L,4S-MBR70%。,1.22%～1.69%(1.49%),、,,。,70%,,。,,。,,(PH3),(1.52～4.55mg/m3)(0～1.52mg/m3),。②　:,,、,:PO3-4※PO3-3※PO3-2※P※PH3。,。,,。,:()+PO3-4PH3。()、,,,C—P,,C—P,[6]。。,(2mg/L)COD(234.12mg/L),(、、),。4S-MBR,,。1.4　MBRMBR(:200910115021.7,:12/552541,:9169257.4,:2009-218274),,。①　CODNH3-N,COD60～300mg/L,COD40mg/L,COD25mg/L,84%;3～30mg/L,1mg/L,1.27mg/L,93%,COD、《》(GB18918—2002)A。②　MBR5∶1,·37·廖志民:高效低耗4S-MBR污水处理新技术的研发与应用第26卷　第10期MBR19∶1,,。,MBR。,、,,,15%～18%,(6%～8%)2～3。,,,,。,、,,1/4。2　4S-MBR工艺的技术经济指标分析4S-MBR,,,()。2[7]、MBR、4S-MBR。,、,MBR;,4S-MBR,1/3～1/5,MBR,40%。2　4S-MBR、MBRTab.2　Comparisonofeconomicandtechnologicalindexfor4S-MBR,conventionalbiologicaltreatmentmethodandconventionalMBR　MBR4S-MBR/(m2·m-3)0.60.2～0.30.1A(1/2～1/3)A0.01A/(kW·h·m-3)0.2～0.30.6～0.90.2～0.36　:　1000m3/d;。3　结语,———4S-MBR,,,:①　,MBR,MBR,。,0.36kW·h/m3,MBR40%;②　,,;③　,70%,;④　,MBR,MBR;⑤　,1/3～1/5;⑥　,,,,、。,4S-MBR,、、、、、、、、,,。:[1]　,.[J].,2008,24(18):24-27.[2]　,,.[J].,2009,29(2):135-138.[3]　BrownJM,McdowellJF,ChangKT.MethodsofCon-trollingScaleFormationinAqueousSystems[P].US:5062962,1991-11-15.[4]　.[M].:,2007.[5]　vanDijkL,RonckenGCG.Membranebioreactorsforwastewatertreatment:thestateoftheartandnewdevelop-ments[J].WaterSciTechnol,1997,35(10):35-41.[6]　.[J].,2007,32:154-156.[7]　,,,.[J].,2007,23(16):37-40.:13807098019E-mail:[e-mail]:2010-03-15·38·第26卷　第10期　　　　　　　　　　　　　　中国给水排水