固定化包埋亚硝酸菌短程脱氮与同步除磷工艺研究古创

4　3环境工程学报Vol.4,No.320103ChineseJournalofEnvironmentalEngineeringMar.2010古　创1,2　董良飞1,2　张凤娥1　杨　彦1(1.,213164;2.,100084)　　,//(AOA)。25±1℃、pH8.0±1、DO1±0.5mg/LHRT9h,,,70%,NH+4-N、CODTP92.2%、87.2%81.3%,。　　　　　　X703　　　A　　　1673-9108(2010)03-0526-05StudyonshortcutnitrificationandsimultaneousphosphorusremovalusingimmobilizednitrosobacteriaGuChuang1,2　DongLiangfei1,2　ZhangFenge1　YangYan1(1.CollegeofEnvironmentalandSafetyEngineering,JiangsuPolytechnicUniversity,Changzhou213164,China;2.StateKeyJointLaboratoryofEnvironmentalSimulationandPollutionControl,DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China)Abstract　Thecombinationofimmobilizationtechnologyandtheprocessofanaerobic/aerobic/anoxicisap-pliedtotreaturbandomesticwastewaterwithlowcarbonsourceatnormaltemperaturesandlowenergyconsump-tion.Comparedwithfreegroupundertheconditionsoftemperatureat25±1℃,pH8.0±1,DO1mg/LandHRT9h,thefixedgrouphasstrongeradaptabilityandhighernitrificationefficiency,thenitriteaccumulationratekeepsabove70%stably,andtheremovalratesofNH+4,CODandTPare92.2%,87.2%and81.3%,re-spectively.Theresultsshowthatfixedgroupissignificantlybetterthanfreegroup.Keywords　shortcutnitrification-denitrification;immobilization;nitrosationrate;urbandomesticwastewaterwithlowcarbonsource;denitrifyingphosphorusremoval:“”(2006BAC19B01):2009-09-11;:2009-11-05:(1981～),,,。E-mail:[e-mail]　　。2,,,[1]。3:;“”SHAR-ON;[2,3]。,。[4]T≥25℃;[5]DO。,,,[6,7]。[8]。“”,,[9]。3　:,DO,//(AOA)。1　1.1　2AOA(1),,7L,。,20cm。。,,,PHB,。,(FA)[10]。FA,FA[11,12]。,,DO。pHDO,。1　--Fig.1　Schematicdiagramofanaerobic-aerobic-anoxicshortcutnitrificationandsimultaneousphosphorusremovalprocess1.2　,1。100L/d,HRT9h,2000～4000mg/L,SRT15～20d,100%。1　Table1　Influentcharacteristics(mg/L)40～6050(mg/L)50～8065TP(mg/L)3～54COD(mg/L)350～400375pH8～8.38.2,,。,,7d,,,(MLSS2200mg/L)。,。3mm×3mm×3mm,,,,,。pH8.5,DO3mg/L,40～50mg/L14d。1、27.1g/L。1.3　12pH8.5～9.5,DO2.5～3.5,,。,,1DO0.5～1mg/L,2DO1～1.5mg/L,pH8.0±1。pHDO,pHDO,。,。1.4　COD、、、TP[13]。3000r/min0.45μm。pHPHG-21D-1pH;DOSJG-208。2　2.1　CODCOD2,2,252742　CODFig.2　RemovalofCODindifferentgroupsCOD(344.1～395.0mg/L),COD55.1mg/L36.1mg/L。COD80.6%,COD,DO,。,COD,COD89.1%,COD50mg/L。3　CODFig.3　VariationofCODconcentrationsalongthewayindifferentgroups32COD。3,COD。,COD,,(VFA),VFAVFA,PHB,,。COD75%,44.2%,,,、、,,COD;,COD,61.3%83.9%;,1COD,,COD。73.2mg/L36.2mg/L。2.2　　4、。4,2,50mg/L,4.2mg/L3.9mg/L。2,22.2%,73.6%,,。39d,4.1mg/L,6mg/L,40.6%,,,。,70%。,AOA,,,,。4　、Fig.4　RemovalofNH+4-N,NO-3-Nandaccumulationrateofnitriteindifferentgroups5283　:　　2,5、。5,2,,、。,7.3mg/L,5.3mg/L,42.1%;2.4mg/L,15.7mg/L,82.4%,。,2.1mg/L1.9mg/L,0.1mg/L0.6mg/L,93.3%88.6%。2,AOA,,,。5　、Fig.5　VariationofNH+4-N,NO-3-N,NO-2-Nconcentrationsalongthewayindifferentgroups2.3　　TP6。6,2TP3.2～4.9mg/L(4.0mg/L),TP0.9mg/L0.7mg/L,78.2%81.3%。TP,2。39d,TP1mg/L。5,,。,,TP0.7mg/L。,。26　TPFig.6　RemovalofTPindifferentgroups,7TP。7,22mg/L16.8mg/L;2.6mg/L2.9mg/L;,2TP。5,TP,,,,21.4mg/L1.8mg/L,5.2mg/L15.1mg/L。PHA,15mg/L。55.5%62%,。AOA。7　TPFig.7　VariationofCODconcentrationsalongthewayindifferentgroups2.4　MLSS2153mg/L2210mg/L(),23d2MLSS4500mg/L4300mg/L,5294,。[14～16],1.2～1.5mg/L0.2～0.4mg/L,,DO,,DO,,,,。,,DO,,。,,,。2MLSS3160mg/L3210mg/L,2,。,。3　　AOA,、。(1)AOA,,,,。(2)AOA,,COD、NH+4-NTP89.1%、92.4%81.3%。AOA80.6%、88.5%78.2%。(3)AOA,。[1],,,..,2006,19(1):26～29[2]HellingaC.,SchellenA.A.J.C.,MulderJ.W.,etal.TheSharonprocess:Aninnovativemethodfornitrogenremovalfromammoniumrichwastewater.Wat.Sci.Tech.,1998,37(9):135～142[3]JohwanAhn,TomotakaDaido,SatoshiT.,etal.Character-izationofdenitrifyingphosphate-accumulatingorganismscultivatedunderdifferentelectronacceptorconditionsusingpolymerasechainreaction-denaturinggradientgelelectro-phoresisassay.WaterRes.,2002,36(4):403～412[4],,,.CA.,2007,30(2):32～33[5],,,..,2008,24(3):56～59[6],,,..,2007,33(8):54～57[7]..,2007,116(8):5～7[8],,..,2008,26(1):11～14[9]..:,2007[10],,,..,2006,28(4):254～256[11],./.,2001,21(1):79～83[12],,,..,2001,17(5):24～28[13]..:,2002[14]WiesmannU.Biologicalnitrogenremovalfromwastewa-ter.AdvancesinBiochemEngineering/Biotechnology.1994,51:114～153[15]ChungJ.,ShimH.,LeeY.,etal.Comparsionofinfluenceoffreeammoniaanddissolvedoxygenonnitriteaccumula-tionbetweensuspendedandattachedcells.Environ.Tech-nol.,2005,26(1):21～33[16]WyffelsS.,W.H.VanHulle,PascalBoeckx,etal.Model-ingandsimulationofoxygen-limitedpartialnitritationinamembrane-assistedbioreactor(MBR).BiotechnologyandBioengineering,2004,86(5):531～541530