ADATIAT生物脱氮工艺短程硝化反硝化吴春笃

ADAT-IAT生物脱氮工艺短程硝化反硝化＊吴春笃　聂　颖　缪应祺　于　琦(,212013)　研究了ADAT-IAT生物脱氮工艺在低溶解氧浓度下,处理高氨氮、低碳氮比工业废水时,去除氨氮过程中亚硝酸盐积累的情况。结果表明,系统在低DO浓度下有效去除氨氮的同时,能够实现长期稳定的亚硝酸盐积累,并且没有发生污泥膨胀。在试验的稳定运行阶段,当系统运行正常,DO=1.0mgL时,DAT池亚硝化率(NO-2-NNO-X-N)平均可达82.1%,氨氮去除率95%,污泥的沉降性能一直良好,SVI值处于90～125mLg范围内。　ADAT-IAT　生物脱氮　短程硝化反硝化　亚硝酸盐积累　低DO　　　　　　　　＊“ADC(SH2005062)0　,[1,2],:,、。,。ADAT-IATSBR,、,,DO(DAT),ADAT-IAT。1　1.1　试验装置ADAT-IAT5mm(1),9.6L,8.4L,(A)80mm×120mm×270mm,DATIAT120mm×120mm×270mm。IAT5,,。、DAT、IAT、。28～32℃,2800～4000mgL,SRT15d,DAT150%～250%,IAT200%,8.4Ld,HRT28h。,DATIATDO。IAT4h,2h(DO1.0～1.5mgL),1h,1h。1—;2—;3—;4—;5—;6—DAT;7—IAT;8—。1　ADAT-IAT1.2　ADAT-IAT工艺简介ADAT-IAT,-DAT-IAT(demandaerationtank-intermittentaerationtank)DAT-IAT[3]。、DATIAT3。,DAT。DAT,DAT,。DAT。IATSBR,、、4,,。IATDAT,。ADAT-IATAOSBR,:ADAT-IATAO,,;,19　　　20078254DOI:10.13205/j.hjgc.2007.04.002,,,,DAT,。IATSBR,,,,,[4]。1.3　实验设计3:、DO。,,,DAT(NLR)。DO,DAINLR,DO(4d),DO,DO。,DO,ADAT-IAT,。1.4　试验用水ADC,1。1　NH+4-N(mg·L-1)CODCr(mg·L-1)Cl-(mg·L-1)SS(mg·L-1)pH20800285726753547.3521900321629774067.2119600319639423957.44　　1,ADC、。,,。pH=7.6～8.0,CN=2.5～3.5。2　2.1　启动阶段2.1.1　,。,,DATIAT,,,,DATIAT,,,。NH+4-NCODCr40～120mgL300～500mgL,NH+4-NCODCr。2。2.1.2　,。,DATNLR0.183kg(m3·d)0.640kg(m3·d)。280mgL。20mgL,88%。,DO3.0mgL,。DATSVI,199mLg103mLg,。2.2　DO条件试验阶段,。DODAT,5DO:2.5、1.8、1.2、0.80.5mgL。2。2　DODAT　2DODAT。DO,DAT(DO=2.5mgL)。DO=1.2mgL,(90.1%),71.8%。DO=0.8mgL,(79.1%),(73.5%)。DO,2DO;1.5mgL1.0mgL,。,DO=1.0mgLDO=1.2mgL(88.3%),12.9%,。,DO=1.0mgL。DORuiz[5]DO20　　　20078254(0.7～1.4mgL),DO0.7mgL。,,DO。2.3　稳定试验阶段3DO=1.0mgL,、DAT、。3,(20mgL),DAT160～220mgL。119d152d(,DATIAT)DAT(DAT),(75.0mgL),。,13～12,,,DAT。ADAT-IAT,。4DO=1.0mgL,DAT。,280.1mgL,12.3mgL,95%,,DAT75%,82.1%。DO(1.0mgL),。,DO。3　、DAT、　2.4　系统污泥沉降性能DODO[6],4　DAT,DAT。,,DATDO,DO,,。(3～5),。DAT,,“”,。[7]SBRDO0.8mgL,,。,,SVI90～120mLg。3　(1)DO(1.0mgL)ADAT-IAT。,280.1mgL,12.3mgL,95%。(2),DODAT,,,82.1%,90%。(3)DO,ADAT-IAT。,,,SVI90～125mLg。[1]　..:,2006.[2]　,,..,2000,94(2):29-31.[3]　,.DAT-IAT.:,2003.21　　　20078254[4]　,.ADAT-IAT.,2005,12(1):38-41.[5]　RuizG,JeisonD,ChamyR.Nitrificationwithhighnitriteaccumulationfortreatmentofwastewaterwithhighammoniaconcentration.WaterResearch,2003,37(6):1371-1377.[6]　PengDC,BernetN,DelgenesJP,MolettaR.SimultaneousorganiccarbonandnitrogenremovalinaSBRcontrolledatlowdissovledoxygenconcentration.JChemTechBiotech,2001,76:553-558.[7]　PengDC,BernetN,DelgenesJP,MolettaR.Aerobicgranularsludgeacasereport.WaterResearch,1999,33(3):890-893.　　212013　　E-mail　[e-mail]2006-11-16沸石曝气生物滤池处理城市纳污河水＊朱小彪　高宝玉　许春华　张宪忠　张永强(,250100)　采用上流式沸石曝气生物滤池(ZBAF)处理城市纳污河水,研究其挂膜启动过程,以及对有机物、NH3-N、SS的去除效果及影响因素。结果表明,在水温为11～24℃条件下,气水比对NH3-N的去除要比对COD和SS的去除影响大得多;当水力负荷为1.2m3(m2·h),曝气量为3∶1时,对污染物的去除效果最佳;滤池填料高度对各种污染物的去除有较大影响,大部分有机物在进水端40cm厚的填料层内得到降解,而氨氮的硝化主要集中在上层填料层内。　沸石曝气生物滤池　纳污河水　气水比　水力负荷　　　　　　　　＊(052143)0　(BAF),,BAF、、、,[1,2]。,BAF(),,。1　1.1　试验进水———,1。1　CODCr(mg·L-1)NH3-N(mg·L-1)℃NTUTN(mg·L-1)pH98.0～352.830.9～55.610.5～25.050.4～27845.2～68.57.0～8.51.2　实验装置1。ZBAF2.3m,0.2m,。,,。3～5mm,1.25m。0.25m,1、2、3、4、5、6。1　　(10L(m2·s),10L(m2·s)。、,ZBAF。22　　　20078254THERESEARCHONDESIGNOFAORPROCESSGaoJunfa　GaoXiae(7)………………………………Abstract　AORisanewbiochemicalprocessthatcombineswithtraditional-activatedsludgeprocessandoxidationditch.Ithasbetterfunctionofnitrogenandphosphorusremovals,anditsuniquedesignofsludgerenewalregion,makesthereturnsludgecentralizedwithappropriateoxygenation,meanwhileeachregioncanengenderflowstatewithconcentriccirclesadopted.Accordingly,itisasortofwatertechnologywithhighefficiency,energysavingandbetteraccommodation.AfterthestudyofAORprocess,thedynamicdesignmeetingbiologicalphosphorusandnitrogenremovalisproposed,andtheformulasusedtodesignandcalculatearededuced.Keywords　AOR,biologicaldenitrificationanddesign&calculationTHEDESIGNANDOPERATIONOFADVANCEDTREATMENTANDREUSEOFSECONDARYEFFLUENTOFCITYSEWAGEDISPOSALPLANTWangRongbin　WangCuiping　XingYietal(10)……………………………………………………………………………………………………………………………………………Abstract　Reusingmunicipalsewageascirculatingcoolingwaterinindustryhasbecomeoneofthemostlyschemestoresolvetheshortageofwaterallovertheworld.However,thequalityofsecondaryeffluentcannotmeetthestandardofcirculatingcoolingwateraboutCODCr,hardness,nitrogenandphosphor,anditmaybereusedbyadvancedtreatment.Abio-contactoxidation-flocculationsedimentation-mixingclarification-continuousdynamicfilter-disinfectionprocesshasbeenadoptedinthisproject,andtheeffluenthasbeenusedasmake-upwatertocirculatingcoolingsysteminanelectricpowerplant.Thepracticaloperationresultshowsthattheprocesshashighefficiencyandalittleenergyconsumption.Thequalityofeffluentmeetsthemake-upwaterqualitystandardofindustrialcirculatingcoolingwater.Bytheimprovementonprocess,theoperationismoresimple,andtherunningoftheequipmentismorestable.Keywords　reuse,circulatingcoolingwater,continuousdynamicfilterandsludgedewateringbedAPPLICATIONOFHIGH-EFFICIENCYCLARIFIERINREFORMOFWASTEWATERTREATMENTPROJECTLiuJianbin　ChuShangye　FanFeietal(13)………………………………………………Abstract　ThecurrentsituationofthewastewatertreatmentsystemforDandongChemicalFiberStockCompanyisintroducedandtheexistingprocesscannotmeettheactualne