高效菌藻塘系统对农村污水中磷的强化去除效果研究郭迎庆

3　12环境工程学报Vol.3,No.12200912ChineseJournalofEnvironmentalEngineeringDec.2009郭迎庆1,3　刘　群2　黄翔峰3(1.,213164;2.,214011;3.,200092)　　。HRT8d4d,1.7～17.1mg/L,3.33mg/L,。、,HRT=1.6d,1mg/L,GB18918-2002B。　　　　　X703.1　　　A　　　1673-9108(2009)12-2223-04EnhancementofphosphorusremovalfromruraldomesticwastewaterwithHRAPGuoYingqing1,3　LiuQun2　HuangXiangfeng3(1.CollegeofEnvironmentalandSafetyEngineering,JiangsuPolytechnicUniversity,Changzhou213164,China;2.WuxiLanxingPetrochemicalCo.Ltd.,Wuxi214011,China;3.CollegeofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China)Abstract　Enhancementofnutrientremovalfromdomesticwastewaterwasstudiedinahigh-ratealgalpondsystem(HRAP)inruralareaofTaihu.AtHRTof8daysand4daysforalgalpondandhydrophytepondrespec-tively,wheninfluentphosphorusfluctuatedfrom1.7to17.1mg/L,theannualaverageofeffluentphosphoruswas3.33mg/L.AimedatunsatisfactoryphosphorusremovalinHRAPsystem,enhancementstrategieswerepro-posed,suchasloweringthewaterdepthinhydrophytepondandusingwastegypsumasplantingmediumtocon-structcomplexhydrophytepond.Afterthemodification,theHRTofhydrophytepondwasreducedto1.6daywhiletotalphosphorusinthetreatedeffluentwasmaintainedbelow1mg/L,whichmetthefirstclassofnationalwastewaterdischargelimit(GB18918-2002).Keywords　high-ratealgalpond;hydrophytepond;ruraldomesticwastewater;enhancedphosphorusremoval:2009(2009-K7-1);(KYZ0802041C):2008-12-05;:2008-12-30:(1970～),,,,:。E-mail:[e-mail]　　。、、,。,,,。,1kg,111kg,138kgCOD;1kg,16kg,20kgCOD[1]。,(N、P),。Liebig,,,[2]。(highratealgaepond,HRAP)Oswald[3,4]。,-,3,、、[5],。HRAP、、、[6,7],HRAP,。　　1　1.1　。,,HRAP、HRAP,,,。16m3;HRAP16m,5m,,0.50m,0.35m/s;1m,20m3。1.2　,PO3-4-P1.12～5.72mg/L,TP1.31～9.01mg/L。1.3　,6:00～18:00,,,。。、HRAP8d,4d。1～2。9:30。,。1.4　TP-,PO3-4-P,UNICO-2000。,HRAP[8,9]。HRAP,,1。,HRAP50%～53%,20%～27%,9%～14%,10%～14%。,。,HRAP。1.5　,HRAP,0.5m,0.35m/s。,HRAP。2d,,3d,。,(Scenedesmusquadricauda),。,(AlternatheraPhiloxeroides),,,。(LemnaminorLinn.),,,2～5mm,2～4mm,1,。2　2.1　2.1.1　实验结果1HRAP。119。1　Fig.1　Schematicprocedureforextractionanddeterminationofphosphorusprecipitants222412:1　HRAPTable1　PollutantremovalofeachunitinHRAPsystemHRAPHRAPHRAP(%)TP(DTP)(mg/L)8.84±1.78(5.22)5.18±1.29(4.15)4.35±0.63(2.89)4.05±0.71(2.54)3.33±0.29(3.12)35.7PO3-4-P(mg/L)4.47±0.783.97±0.952.79±0.492.42±0.662.93±0.2126.2　　:DTP2.1.2　磷的去除HRAP1.7～17.1mg/L,。35.7%,HRAP;(DTP)HRAP。3.33mg/L,。,TP,TPTP。HRAP,,,。2HRAPP。2,HRAP(),76.6%。HRAP;HRAPP。2。2　HRAPTPFig.2　DistributionofvariousphosphorusspeciesineachunitofHRAPs2HRAP:①,,,HRAP,,;②,pH,pHCa2+[10]。pH,Ca2+,Ca2+pH。。,。2.2　,3.33mg/L,2.93mg/L,88%。,。HRAP,1.0m,,,。,,;,,。,1。3,××1.0m×0.5m×0.5m,。CaO32.6%,SO346.5%,H2O20.9%。0.1m,3～5cm,0.3m,0.143m3。0.3m。3　Fig.3　Experimentalset-upofcomplexhydrophytepond222532.3　4。4,1.7～4.7mg/L,1mg/L,0.67mg/L,79.5%,GB18918-2002B。0.44mg/L,77.9%。,;,。4　Fig.4　Removalofphosphorusincomplexhydrophytepond3　　(1)HRAP,HRAPHRT8d4d,1.7～17.1mg/L,3.33mg/L。,。(2)。　　、,HRT=1.6d,1mg/L,79.5%。。(3)()0.2g/100g,,,Ca2+、SO2-4,,。[1]RandallC.W.,BarnardJ.L.,DavidStenselH.DesignandRetrofitofWastewaterTreatmentPlantsforBiologicalNutrientRemoval.Pennsylvania:TechnomicPublishingCompanyInc.,1992[2],,.-.,2004,13(4):506～507,511[3]GimezE.,CasellasC.,PicotB.Ammoniaeliminationprocessesinstabilizationandhigh-ratealgaepondsystems.Wat.Sci.Tech.,1995,31(7):303～312[4]picotB.,MoersidikS.,CasellasC.Usingdiurnalvaria-tionsinahighratealgalpondformanagementpattern.Wat.Sci.Tech.,1993,28(10):169～175[5],,,..,2006,7(8):6～11[6]PicotB.NutrientremovalbyhighratepondsysteminaMediterraneanclimate(France).Wat.Sci.Tech.,1991(23):1535～1541[7]BuhrH.O.,MillerS.B.Adynamicmodelofthehigh-ratealgal-bacterialwastewatertreatmentpond.Wat.Res.,1983,(17):29～37[8]MoutinT.,GalJ.Y.,Halouani,H.E.,etal.Decreaseofphosphateconcentrationinahighratepondbyprecipita-tionofcalciumphosphate:Theoreticalandexperimentalre-sults.Wat.Res.,1992,26(11):1445～1450[9]GarcíaJ.,Hernández-MarinéM.,MujeriegoR.Analysisofkeyvariablescontrollingphosphorusremovalinhighrateoxidationpondsprovidedwithclarifiers.WaterSA,2002,28(1):55～62[10]NurdoganY.,OswaldW.J.Enhancednutrientremovalinhigh-rateponds.Wat.Sci.Tech.,1995,31(12):33～432226