MBRNF组合工艺处理印染废水夏炎

MBR-NF夏　炎1,张林生1,陆继来2,顾晓东3,冯美丽41.东南大学能源与环境学院,江苏南京210096;2.江苏省环境工程重点实验室,江苏省环境科学研究院,　江苏南京210036;3.常熟市梅李镇人民政府,江苏常熟215511;4.河海大学农业工程学院,江苏南京210098　:-(MBR-NF)。COD372～1121mg/L,16.17～26.85mg/L,19.18～46.54mg/L,HRT30h,300%MBR,COD、87%,95.8%70.2%,GB4287—1992《》;NF。,。:染整;废水处理;膜生物反应器;纳滤:TS199　　　:B　　　:1000-4017(2009)21-0029-04DyeingeffluenttreatmentbythecombinedmembranebioreactorandnanofiltrationprocessXIAYan1,ZHANGLin-sheng1,LUJi-lai2,GUXiao-dong3,FENGMei-li41.SchoolofEnergyandEnvironment,SoutheastUniversity,Nanjing210096,China;2.JiangsuKeyLabofEnvironmental　Engineering,JiangsuAcademyofEnvironmentalScience,Nanjing210036,China;3.People'sGovernmentofMeili　Town,Changshu215511,China;4.Schoolofagriculturalengineering,HehaiUniversity,Nanjing210098,ChinaAbstract:Dyeingeffluenttreatmentbythecombinedprocessofmembranebioreactor(MBR)andnanofiltration(NF)wascar-riedout.Resultsshowedthatwheninfluentindicatorswere:COD372～1121mg/L,NH3-N16.17～26.85mg/L,TN19.18～46.54,theremovalratesofCOD,NH3-NandTNreached87%,95.8%and70.2%respectively,whichcouldmeetthedemandsofthefirstlevelofGB4287—1992“Dischargestandardofwaterpollutantsfordyeingandfinishingoftextileindustry”.Dyeingef-fluentstreatedbythecombinationofMBRandNFprocesseswithhydraulicretentiontimeof30hoursandrefluxratio300%,couldbereusedfortextiledyeing.TheMBR-NFprocesshadexcellentresistancetoshockloadsandstableoperation.Keywords:dyeingandfinishing;wastewatertreatment;membranebioreactor;nanofiltration0　前言1200,3.88。,,,。,,。(MBR),,。(NF)。Rozzi[1],MBR+NF,,++。MBR+NF,MBRCOD,NF:2009-07-23:(2008ZX07101-003),(BS2007122),(2007026)。:　(1986-),,,,,E-mail:[e-mail]。COD、,。1　试验部分1.1　,。1。1　COD372～1121(NH3-N)/(mg/L)16.17～26.85(TN)/(mg/L)19.18～46.54(TP)/(mg/L)2.30～9.45/cu185～327pH8.43～11.12　　1,,,,。pH,,,。1.2　　MBRNF,29　MBR-NF组合工艺处理印染废水　(2009No.21)1。1　,,。,,。,COD、BOD,。,,,。。1.3　1.3.1　试验过程,,,,14d,54.4%70%。1.3.2　参数控制(1)MBR25m3,1∶50,9min,1min;TMR140-050S(),(PVDF)。0.08μm,0.03μm,50,70m2,12L/(m2·h)。(2)NFESNA1-4040(),,,7.9m2,2,,24L/(m2·h)。1.4　2。2　结果与讨论2.1　MBR,,。2　pHCODNH3-NTNFeMnTC-3000e,。,,。2.1.1　MBR对COD的去除效果MBRCOD2,HRT=30h,300%,。2　COD2,COD(372～1121mg/L),COD(76～110mg/L,94mg/L),GB4287—1992《》,COD87%。MBR,,(),,,,。,,,,,[2],。2.1.2　MBR对氨氮的去除效果MBR3。3,,0.93mg/L,95.8%。,,30　(2009No.21)　　,。[3],。,,。2.1.3　MBR对总氮的去除效果MBR(TN)4。4　MBR,300%,8.88mg/L,70.2%,(A/O)(50%～70%)[4]。:,;,,。2.2　。200～2000Da,1nm。,,,[5]。,。,,[6]。2.2.1　纳滤对COD的去除效果COD5。5　COD,。54.4%,COD80mg/L,COD15mg/L,81%;70%,COD87mg/L,COD23.5mg/L,73%。COD,,,。2.2.2　纳滤对色度的去除效果6。6　6,MBR90cu,65%。,,MBR,5.4cu,,,。2.3　MBRNF3。3　MBRNFMBRNFCOD/(mg/L)8015≤30/cu93.04.5≤10.0/(μs/cm)53151423-TDS/(mg/L)34893≤180/%0.2800.074-Fe/(mg/L)0.4850.080≤0.100Mn/(mg/L)0.930≤0.10pH8.578.106.50～8.50　　:NF54.4%,TDS。31　MBR-NF组合工艺处理印染废水　(2009No.21)3,NF。2.4　,MBR,,、,;,MBR,,,;,9min,1min,。,0.007MPa,MBR。,,,,,1h,,0.76～0.82MPa。3　结论(1)MBR,HRT=30h,=300%,COD372～1121mg/L,16.17～26.85mg/LTN19.18～46.54mg/L,COD94mg/L,0.93mg/LTN8.88mg/L,87%,95.8%70.2%。,GB4287—1992《》。(2)MBRNF,54.4%,24L/(m2·h),COD15mg/L,4.5cu,TDS93mg/L,Fe0.08mg/L,Mn0mg/L,pH8.1,。(3)MBR,、、,,。,,。:[1]　RozziA,MalpeiF,BianchiR,etal,Pilot-scalemembranebioreactorandreverseosmosisstudiesfordirectreuseofsecondarytextileefflu-ents[J].Wat.Sci.Tech.,2000(4):189-195.[2]　,,,.+MBR[J].,2006(11):14-16.[3]　　,　,,.A/OMBR[J].,2006,26(2):60-63.[4]　OISSONG,NEWELLB.WastewaterTreatmentSystem:Modeling,Diag-nosisandControl[M].London:IWAPublishing,1999.[5]　.[J].,2001(2):86-90.[6]　,　.[J].,2001,21(3):50-52.32　(2009No.21)