A2OMBR工艺处理印染废水中试研究陆继来

5　3环境工程学报Vol.5,No.320113ChineseJournalofEnvironmentalEngineeringMar.2011A2/O-MBR陆继来1　夏　炎2　张林生2　冯美丽3　邹　敏2　张利民2(1.,,210036;2.,210096;3.,210098)　　A2/OA2/O-MBR,。,,COD43%。,COD、NH3-HTN88%、98%80%。　　A2/O　MBR　X703　　　A　　　1673-9108(2011)03-0511-04Studyonpilot-scaleA2/O-MBRforprintinganddyeingwastewaterLuJilai1　XiaYan2　ZhangLinsheng2　FengMeili3　ZouMin2　ZhangLimin2(1.JiangsuKeyLaboratoryofEnvironmentalEngineering,JiangsuAcademyofEnvironmentalScience,Nanjing210036,China;2.SchoolofEnergyandEnvironment,SoutheastUniversity,Nanjing210096,China;3.SchoolofAgriculturalEngineering,HohaiUniversity,Nanjing210098,China)Abstract　Apilot-scalesystemwasconstructedbasedonthecombinedtheoryofflat-sheetmembraneandA2/Oprocess.Thetreatmentefficiencyofprintinganddyeingwastewaterandstabilityofthesystemwerealsoex-ploredinthispaper.Theresultsshowedthathydrolyticacidificationcanimprovebiodegradabilityofprintinganddyeingwastewaterandremove43%ofCODonanaverage.Thetreatmenteffectwasstable.TheremovalrateofCOD,NH3-HandTNwas88%,98%and80%,respectivelyunderthebestrunningconditions.Keywords　printinganddyeingwastewater;A2/O;MBR:“”(2008ZX07101-003);(BS2007122);(2007026):2009-07-17;:2010-03-26:(1977～),,,,。E-mail:[e-mail]　　、。PVA、,,。,。MBR,、[1]。[2]A/O-MBR,COD、BOD5、92.1%、98.4%、60.7%98.9%。[3]--MBR,COD90%,95%。,MBR,,,MBR。MBRA2/O(//),,。1　1.1　()、(MBR),11。,,,。51　Fig.1　Schematicdiagramoftheexperimentalequipment1　Table1　Sizeoftheexperimentalequipment(m)(m)(m)(m3)0.80.82.51.51.31.31.01.2MBR1.00.652.51.31.2　MBR,(PVDF),0.1～0.3μm,17,17m2。10min,2min。。,8～10m3/h,0.03MPa。,。1.3　20087～20097。,,,。:COD263～1828mg/L,NH3-N13.21～31.22mg/L,TN17.71～37.54mg/L,TP2.13～17.39mg/L,179～321,B/C0.15～0.25。1.4　COD、NH3-N、TN、BOD5、DOMLSS。[4]:COD,;BOD5,;NH3-N,;TN,;DO,;MLSS,。2　2.1　,,,。,。,、,。,COD,CO2、CH4。3HRT,9、1218h。HRTCOD22。2　CODFig.2　CODremovalefficiencyinanaerobictank2　HRTCODTable2　CODremovalefficiencyinanaerobictankwithdifferentHRTsHRT(h)91218COD(mg/L)554915600COD(mg/L)319333362(%)37.8459.9428.59　　:。22,COD,687mg/L,335mg/L,43%,COD,263～1828mg/L,COD,191～512mg/L,。,COD。,B/C0.15～0.250.33～0.4,。5123:A2/O-MBR,。,,,[5]。2.2　,。,。,,,,。2.2.1　膜生物反应器对COD的去除效果3HRT,15、2030h。COD33。3　CODFig.3　CODremovalefficiencyinMBR3　HRTCODTable3　CODremovalefficiencyinMBRwithdifferentHRTsHRT(h)152030MBRCOD(mg/L)319329374MBRCOD(mg/L)908771(%)727481　　:。33,HRT,COD,HRT=50h,COD71mg/L。,BOD55mg/L,,,。0.028～0.12kgCOD/(kgMLSS·d),,,。2.2.2　膜生物反应器对NH3-N的去除效果4,NH3-N。0.36mg/L,98%。,,。,,:;,,,。4　NH3-NFig.4　NH3-Nremovalefficiency2.2.3　膜生物反应器对TN的去除效果TN,3:100%、300%500%,TN4。4　TNTable4　TNremovalefficiencyindefferentrefluxratios(%)500300100TN(mg/L)29.0423.7426.66TN(mg/L)6.645.7611.04(%)767558　　:,20d。,,。DO0.06mg/L,NO3-N1mg/L,,15mg/L,A/O(50%～70%)[6]。,100%,,,50%,,,,5135(SND)。2.3　,[7]。[8]:,;;/。。5COD,COD84.9%,COD44.3%,COD33.4%,COD7.2%。[9],COD2.3%～18.3%。MBR,,,COD。5　CODFig.5　CODremovalefficiencyindifferentstages3　　A2/O-MBR,HRT=50h、=300%、=20d,COD、NH3-NTN71、0.365.76mg/L。,。COD,,。,COD7.2%。[1]..,2008,28(2):95-97[2],,..,2001,22(4):91-94[3].--MBR.,2006,32(13):27-30[4].(3).:,1989[5].+.:,2003[6]OISSONG,NEWELLB.WastewaterTreatmentSystem:Modeling,DiagnosisandControl.London:IWAPublishing,1999[7],,,.MBR.,2004,36(2):147-153[8],..:,2002[9]..:,2004514