不同深度处理工艺去除污水处理厂出水中氮磷的比较研究

75Vol.7,No.520065TechniquesandEquipmentforEnvironmentalPollutionControlMay20063(11,100085)(,100061),,(),,,,TB495A100829241(2006)0520096204ComparativeinvestigationonnitrogenandphosphorusremovalbydifferentadvancedtreatmenttechniquesWangDonghong1HuangQinghui1WangZijian1ZhouJun2(11StateKeyLaboratoryofEnvironmentalAquaticChemistry,ResearchCenterforEco2EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085;21BeijingDrainageGroupCorporation,Beijing100061)AbstractEnvironmentalriskassessmentisrequiredfordirectdischargeofeffluentfromwastewatertreat2mentplantintoreceivingwaters.Riskassessmentisalsonecessaryforeffluentsfromadvancedtreatmentunitswhenusedforirrigation,forbackfilltogroundwater,aswellasforsightwaters.Inthispaper,removalefficien2ciesofdifferentchemicalformsofnitrogenandphosphorusfromsecondaryeffluentoftheBeixiaoheWastewaterTreatmentPlantandbyusingadvancedtreatmenttechnologieswereevaluated,regardingtothere2useforsightwateroftheOlympicPark.Theresultsshowedthatsecondarytreatmentcouldhardlyremovenutrientsandrecla2mationtechnologiesshouldbeapplied.Amongbiologicactivatedcarbonadsorption,microfiltration,ultrafiltra2tion,reverseosmosis,aswellastheircombinations,thecombinedreactorbasedonbothultrafiltrationandre2verseosmosiswasthemosteffectiveone,whileothertechnologieswerenotsuitableforremovalofbothnitrogenandphosphorusfromsecondaryeffluent.Keywordswastewaterreclamation;advancedtreatment;nitrogen;phosphorus:(20337020);:2005-04-01;:2005-06-18:(1968),,,3,E2mail:[e-mail]1,,200890%,50%,[1,2],,COD5:BODSS,,[3],[4],,,,,,,,,,,,,,,22.1,20037,,24h1h,,pH(4h);1.0mm(152mm,MilliporeCo.,USAandPeristalticPumpHead,MilliporeCo.,USA),(Sens2ionTM156,HachCo.,USA)(TDS),12.21Table1WaterqualitychangesofinfallwaterandeffluentofdifferentadvancedtreatmentinBeixiaoheWastewaterTreatmentPlantpH(s/cm)TDS(mg/L)7.659944887.87873427+7.91821401+7.47834410+7.48838408++6.4854.126[3][4](UNICOUV22000,)2[4]N2(12)2[3](),,[3]23(2),12Table2Concentrationofnitriteineffluentofadvancedtreatmenttechniques(mg/L)0.03600.000870.2600.0038+0.2070.0041+0.2540.0020+0.2530.00029++0.04610.0023797(12),,,30%70%;1Fig.1Concentrationsofnitrogenanditsspeciesineffluentofadvancedtreatmenttechniques2Fig.2Concentrationsofphosphorusanditsspeciesineffluentofadvancedtreatmenttechniques,,+90%,98%,4,40%++,++,,0.1mg/L,3.7mg/L,,,,,50%,,,,COD,,,,,,,,2,,,,(12),,,,,,,,,[5],,0.0510m,(12)[6],,895:,,,,;,,,,,,,,[7]()+,(2),,0.1mg/L,90%,8%14%15%,(1),,,,,,,,,,,,SHARONANAMMOXSHARON2FANAMMOXOLAND[8,9],BardenphoPhoredoxUCTA/OABOCOSBRCASTUNITANK[10],4,,,,,[1]..,2001,27(11):16[2],,..,2002,25(2):120122[3]APHA,AWWAandWEF.StandardMethodsfortheEx2aminationofWaterandWastewater,20thEdition.WashingDC:AmericanPubicHealthAssociation/AmericanWaterWorksAssociation/WaterEnvironmentFederation,1998,4210242103[4]..:,1989.256258[5],,..,2002,18(4):6769[6],,,..,2002,25(2):1418[7],,,..,2002,10(4):5863[8]..,2000,16(2):2528[9],,..,2001,28(4):8891[10],..,2002,3(1):414599