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:2005-04-28:“”(2002AA601012-1BA):(1973-),,,.E-mail:leo5000@sina.com李旭东,何小娟,周 琪,何少林(, 200092):,4d、8d.:(COD),COD,70%.,93%,、.,50%...:;;;:X524 :A :0253-374X(2006)11-1505-05StudyonTaihuRuralDomesticWastewaterTreatmentPerformanceinaHighRateAlgalPondSystemLIXudong,HEXiaojuan,ZHOUQi,HEShaolin(SchoolofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China)Abstract:Theperformanceofahighratealgalpond(HRAP)withthehydraulicretentiontime(HRT)of4dinthehotseasonand8dinthecoldseasonispresentedinthispaper.ThesystemwasfedwithdomesticwastewaterofTaihuLakeruralvillage.TheresultsshowthatCODconcentrationofef-fluentisinfluencedmarkedlybyalgalgrowth,butdissolvedCODofeffluentiscomparativelysteady.TheaverageremovalrateofdissolvedCOD,ammonia-Nandtotalphosphoruswere70%,93%and50%,respectively.Themainremovalmechanismofammonia-Nwasnitrification,assimilationofal-gaeandvolatilization,andphosphorusremovalwasmainlydependedonprecipitation.TheresultsalsoshowthatlongHRTisveryusefulduringthecoldseasonandtheHRAPiseffectiveintreatingTaihuLakeruraldomesticwastewater.Keywords:highratealgalpond;ruraldomesticwastewater;TaihuLake;nitrogenandphosphorusremoval ,,,,.,,.,、,.3411200611()JOURNALOFTONGJIUNIVERSITY(NATURALSCIENCE)Vol.34No.11 Nov.2006,.,、.(highratealgaepond,HRAP)Oswald[1,2].、O2CO2、,,,、.,,,.、、、、、、、、[3～5],,.,.1 1.1 .1.5km,,,“”.2300,700.1.0m,0.32m,0.40m,10mm,5mm,,,45°,0.3m,92L(1).,0.6m,30mm.,0.15m·s-1.1 Fig.1 AschematicillustrationoftheHRAPexperimentalsystem1.2 ,,,.12h,.1,.1 Tab.1 Characteristicsoftheinfluentmg·L-1ρ(TN)ρ(NH+4)ρ(NO-3)ρ(TP)ρ(COD)24.721.80 1.785.2127.4103.62.49.1416.971.260.70.85.1176.826.822.60.62.266.7 :TN;TP;COD1.3 20047,,6:00～18:00.,,,、,(7～10)4d,1.92L·h-1,(111)8d,0.96L·h-1.[4,5].,,,,.1.4 ,pH、(DO)、、、、、、COD(DCOD),PHB-4pH、JPB-607、、-、、、CTL-12COD[6],1～2.2 2.1 pH,pH.pH,,.1506 ()34 、pH2.,pH7.0～10.7,,,pH,12:00～15:00,16:00,,pH,,.,,pH,pH,.pH1.5.pH,pH[7]:pH,pH.,,,,pH,.,,,pH.pH,pH.pH.2 pHFig.2 pHchangeduringa24hperiodindifferentseasons2.2 ρ(DO)pH,.3ρ(DO),3,,ρ(DO),10:00(12mg·L-1),14:00,20:30,6.0mg·L-1,ρ(DO),.、ρ(DO),ρ(DO).,,DO,.3,,8:00～18:00,ρ(DO),3mg·L-1,,,DO.,,,ρ(DO),.,,,,ρ(DO).DO,.3 ρ(DO)Fig.3 Dissolvedoxygenchangeduringa24hperiodindifferentseasons2.3 COD,、CO2,,,,,.,,[2,3].,、,,.,ρ(COD)(ρ(DCOD)). 2COD.2,,,,,75%DCOD;,,,,,DCOD(71%).1507 11,: 2 CODTab.2 CODcharacteristicsofwastewaterbeforeandaftertreatment/d48ρ(COD)/(mg·L-1)176.9257.6ρ(COD)/(mg·L-1)97.6114.2ρ(DCOD)/(mg·L-1)44.175.11)/%7571 1)DCOD.2.4 80%(1),,.4,,,.,.12,,90%.,,,93%,[2,8].4 Fig.4 AmmoniumremovalintheHRAP :、[1].,,.Picot[4]NO-2—NNO-3—N,;Nurdogan[9],,pHρ(DO),.Mclean[10].,5,NO-2—N,,NO-2—N,NO-3—N,.、pH6.0～7.57.4～8.3,NO-2—NpH=8.0,NO-3—NpH=7.0,[11].pH8,,NO-2—N;pH,,NO-3—N.5 Fig.5 NOx—NconcentrationchangebeforeandaftertreatmentintheHRAP2.5 pHCa2+,pH8,,pH.,,,20%[12].(3),8d,TP,PO3-4—P4d.pH3 Tab.3 Phosphoruscharacteristicsofwastewaterbeforeandaftertreatment/d48ρ(TP)/(mg·L-1)ρ(TP)/(mg·L-1)TP/%4.62.1555.83.147ρ(PO3-4—P)/(mg·L-1)ρ(PO3-4—P)/(mg·L-1)PO3-4—P/%3.41.5544.32.5411508 ()34 ,,pH(2),11,.3 pH、,.ρ(COD),ρ(COD),ρ(DCOD),100mg·L-1.COD70%(DCOD).93%,,,.,pH,55%,.8d.,.:[1] GómezE,CasellasC,PicotB,etal.Ammoniaeliminationpro-cessesinstabilizationandhigh-ratealgaepondsystems[J].WatSciTech,1995,31(7):303.[2] PicotB,MoersidikS,CasellasC,etal.Usingdiurnalvariationsinahighratealgalpondformanagementpattern[J].WatSciTech,1993,28(10):169.[3] ,,.、[J].,2000(1):13. HANShiqun,ZHANGZhenhua,YANShaohua.Presentsitua-tionanddevelopmentaltrendofwastewatertreatmentandeu-trophicationwaterspurificationwithalgatechnology[J].Agro-environmentandDevelopment,2000(1):13.[4] PicotB,ElHalouaniH,CasellasC,etal.Nutrientremovalbyhighratepondsysteminamediterraneanclimate(France)[J].WatSciTech,1991,23(7):1535.[5] BuhrHO,MillerSB.Adynamicmodelofthehigh-ratealgal-bacterialwastewatertreatmentpond[J].WatRes,1983,17(1):29.[6] 《》.[M].4.:,2002. ChinaEPA.Directionofanalysismethodforwaterandwastewa-ter[M].4thed.Beijing:ChinaEnvironmentalSciencePress,2002.[7] WeberWJ,StumnW.Buffersystemsofnaturalfreshwaters[J].JChemEngngDataWatWksAss,1963(55):1553.[8] ,.[J].,2001(8):41. XUChunhua,ZHOUQi.Studyonhighratealgaepondanditsapplication[J].EnvironmentalProtection,2001(8):41.[9] NurdoganY,OswaldWJ.Enhancednutrientremovalinhigh-rateponds[J].WatSciTech,1995,31(12):33.[10] McleanBM,BaskaranK,ConnorMA.Theuseofalgal-bacterialbiofilmstoenhancenitrificationratesinlagoons:experienceun-derlaboratoryandpilot-scaleconditions[J].WatSciTech,2000,42(10-11):187.[11] ,,.[J].,1999,25(7):37. XUDongmei,NIEMeisheng,JINChengji.Experimentandre-searchonthenitrousnitrification[J].Water&WastewaterEn-gineering,1999,25(7):37.[12] PicotB,BahlaouiA,MoersidikS,etal.Comparisonofthepurify-ingefficiencyofhighratealgalpondwithstabilizationpond[J].WatSciTech,1992,25(12):197.(编辑:杨家琪)··DaubechiesⅠ杨晓楠,唐和生,陈 ,薛松涛 ,.Db(DaubechiesⅠ),,4,Db.,、.1509 11,: