高效串联改进式BAF处理氨氮废水的研究赵慧

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Researchonthetreatmentofammonia-nitrogenwastewaterbyhighlyefficientseries-modifiedbiologicalaeratedfilterZhaoHui1,XieChenxin1,TengHoukai1,ChenJun1,FuSongbao2,ShanZhongping2,KeXiaojun2(1.CNOOCTianjinResearch&DesignInstituteofChemicalIndustry,Tianjin300131,China;2.ChinaBlueChemicalLtd.,Dongfang572600,China)-BAF1,1,1,1,2,2,2(1.,300131;2.,572600)[]、,-(BAF)。,-BAF200mg/L5mg/L。,、COD,,。[];-BAF;[]X703.1[]A[]1005-829X(2010)06-0041-04Abstract:Aimingatthecharacteristicsoflargedischargingquantityofammonia-nitrogenwastewaterandhighcon-centrationofpollutantsinchemicalfertilizerplants,thehighlyefficientseries-modifiedBAFhasbeenusedfortreatingtheammonia-nitrogenfertilizerwastewateranditsshockproofloadinghasbeenstudied.Theresultsshowthatthehighlyefficientseries-modifiedBAFcaneffectivelyremovetheinfluentammonia-nitrogenfrom200mg/Ltolessthan5mg/L,andhasstrongbuffercapacityfortreatingsuddenlyhighorlowammonia-nitrogenloading.Bysupplyinghighlyefficientstrains,thehighlyefficientseries-modifiedBAFhasaprettyhighremovalrate,whentheinfluentammonia-nitrogenandCODloadingarehigh.Keywords:ammonia-nitrogenwastewater;highlyefficientseries-modifiedBAF;highlyefficientstrains,1t1.5%~5.0%1t〔1〕。,、、。、、(BAF)〔2-3〕。BAF〔4〕,BAF。-BAF。11.11。,50cm,250cm,0.5m3。BAF,BAF,。-BAF,〔5〕。1.2,:NH4+-N、COD、BOD5150~300、100~350、30~145mg/L,pH7.8~9.0、18~35NTU。[]“”(2008BAE64B07);(HFKJ-XML-TJY0904)30620106IndustrialWaterTreatmentVol.30No.6Jun.,201041——2010-06,30(6)1.3,。,4h20%,18%2%,10%10%。3d。-BAFCOD、pH,70%,,。0.13m3/h,6∶1~10∶1。,pH8.5~9.0,n(C)∶n(N)∶n(P)=100∶5∶1、。1.424h。-BAF。:5min,10min,15min。。1.5,;COD,;TN,-〔6〕;,HACH2100P;,HACHHQ30d。。22.1-BAF-BAF2。2,200mg/L,75%,22%,5mg/L,(GB18918—2002)a。2.2-BAF2.2.1,COD,300mg/L,3。3,,29.6mg/L,90%。,(5mg/L),75%22%。29.6mg/L5mg/L5d。2.2.2,104mg/L,1d,200mg/L,BAF,。3。3,104mg/L,21.7、3.2mg/L。200mg/L,,9.9mg/L,3d,5mg/L,,69%28%。,-BAF,,,。-BAF。2.2.32.2.14,1(),,22%33%10%16%。2(),200mg/L,20%35%。3()4(),,,。42——2010-06,30(6),,,,;,,BAF、。2.3-BAFCOD,,COD300mg/L,,4、5。4、5,COD,COD60%40%,84%。,,,,,。,5,1d,,6。,,,,COD50mg/L,60%,5mg/L。2.4-BAF、COD,COD300mg/L,6、7。6、7,5,COD77.4、174.3mg/L,74%、42%。61d,7。,10,COD95%60%,15mg/L,COD130mg/L。、COD,,。3(1)BAF,-BAF,,,。(2)-BAF200mg/L5mg/L。(3)-BAF,。、COD,,。[][1],,,.[J].,2007,32(9):14-16.[2]AdachiS.Reclamationandreuseofwastewaterbybiologicalaeratedfilterprocess[J].Wat.Sci.Tech.,1991,24(9):195-204.[3],.[M].:,2005:82-95.[4],,.,:-BAF43——(VOC),VOC。VOC、、、〔1-2〕。。,VOC,、、(PV)、、〔3-4〕。,PVVOC、,。VOCVOC,,[M].:,2002:18-23.[5],,,.:,200810117545.5[P].2008-12-24.[6].[M].4.:,2002:211-281.StudyontheremovalcapacityofVOCfromwaterbypervaporationprocessthroughasiliconerubbermembraneLiuQingxin1,LiJinlong2,SuiGuozhe2(1.MethanolRefinery,DaqingOilfield,Daqing163411,China;2.CollegeofChemicalEngineering,QiqihaerUniversity,Qiqihaer161006,China)VOC1,2,2(1.,163411;2.,161006)[](VOC)。、、VOC。,VOC2.0×10-4、70cm3/min,90%,50cm3/min,72%,。,VOC。Henry。[];;;[]TQ085+.411[]A[]1005-829X(2010)06-0044-04Abstract:TheremovalcapacityofVOCfromwaterbypervaporationprocessthroughasiliconerubbermembranehasbeenstudied.Theeffectsofwaterfeedingvolumn,feedingtemperature,theexistenceofdissolvedgasandwa-tervaporinfeedingliquidontheremovalefficiencyofVOCareinvestigated.Theexperimentalresultsshowthatthere-movalefficiencyofbenzenecouldreach90%,whenthefeedingconcentrationofVOCgasinthesolutionis2.0×10-4,andfeedingvolumnofflowis70cm3/min.Buttheremovalefficiencyoftolueneisonly72%whenfeedingvolumnofflowis50cm3/min.And,theremovalefficiencyofVOCincreaseswiththeincreasesoffeedingtemperature.Theexistenceofdissolvedgasenhancestheremovalefficiencyofthemembrane,buttheexistenceofwatervaporde-creasesthepermeationcoefficientofVOCgas.BasedonthecalculationmodelofHenrycoefficient,aprettygoodpredictionontheexperimentalresultshasbeencarriedthrough.Keywords:volatileorganiccompounds;pervaporation;siliconerubber;hollowfibermembrane[](LC2009C09)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!30620106IndustrialWaterTreatmentVol.30No.6Jun.,2010[](1982—),2008,。:022-26689183,E-mail:zh-xcf@163.com。[]2010-02-25()44——

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