城市污水化学除磷药剂的选择实验研究俞蕴芳

23420108POLLUTIONCONTROLTECHNOLOGYVol.23,No.4Aug.,2010,　　(苏州工业园区清源华衍水务有限公司,江苏苏州　215021)　:,,,。,,。。,,100mg/L,。:;;:X703　　　:AExperimentalStudyontheSelectionofChemicalAgentsinPhosphorousRemovalofSewageYUYun-fang,　GUJun(SuzhouIndustrialParkQingyuanHongKongChinaWaterCo.,Ltd.,Suzhou,Jiangsu215021,China)Abstract:Thebiologicalphosphorousremoval(BPR)technologieswithoutchemicaldephosphorizationcouldnotmeetthere-quirementsofsewagetreatmentwhiletheinflowwithhighconcentrationofphosphorus.Undertheconditionsoflowdosage,FeCl3couldachievegoodefficiencyofphosphorusremovalbutresultedinincreaseinchroma.Aluminiumpolychloridhadbetterefficien-cy,regardlessofitsdosagelevel.Al2(SO4)3hadtheworseremoval,butdifferedlittlefromFeCl3ifthedosagewaslargerthan100.00mg/L.Keywords:chemicaldephosphorization;inflow;sewagetreatment:2010-05-07:(1967—),,,,,。　,、,,,。,,,。,。,、、、。,,[1]。,,,,。,。、、[2]。,、,。,、、,、,,,。,。,、[3-5]。,,20108.·75　　　·。1　1.1　水样样品采集,。1.2　试验用药剂(1)(1g/L),10.0%Al2O3(GB15892—2003),1000。(2)(1g/L),40%FeCl3(GB4482—93)1000。(3)(1g/L),8.0%Al2O3(GB3151—82)1000。(4)(33%),。1.3　实验设计1000mL,,,200r/min1min;20r/min20min;30min,pH、TP。1.4　主要测试仪器pH(pHSJ-3F)、(EV300)。2　2.1　硫酸铝与聚合氯化铝投加量对除磷效果的影响:Al3+PO3-4,,Al3+,Al(OH)2+,Aln(OH)(3n-m)+m,,、。pH5.0～8.0[3]。。Al2(SO4)3,,[Al2(OH)nCl(6-n)]m,,。40～150mg/L,,TP4.19mg/L4.22mg/L,pH7.317.81。1、2,,TP,。100mg/L,TP1.96mg/L,50%。100mg/L,TP1.55mg/L,63%。3,,pH,,,pH。1　2　3　、、pH2.2　三氯化铁投加量对除磷效果的影响,Fe3+,,,。、,,,。pH8[6]。4.38mg/L,pH7.76,,4。4,40mg/L100mg/L,23.52%49.77%。,。·76　　　·.234,、,,。,Fe2+Fe3+。2.3　石灰乳投加量对除磷效果的影响,Ca5(PO4)3OH,。pH,,。pH10[7]。33%300～1800mg/L,,TP4.57mg/L,pH7.85,5、6。5、6,,。600mg/L50%,pH9.55。,Ca2+,OH-。pH,Ca5(OH)(PO4)3,[1]。1200mg/L、pH10.8,,。4　5　6　pH2.4　化学除磷药剂应用效果的比较,,,,,,pH10,pH。,,,,。4mg/L,100mg/L,TP50%(7)。7　、、7,、,。;,,。,,,,,,。,,,。3　　(1),,,pH,。(2),,。(3),100mg/L,。(4),。(下转第100页)·100　　·.234,,。6　　,、,、、,、。,、,,,,。[][1]　,　,　,.[J].,2006,28(2):100-103.[2]　,　,,.[J].,2009,31(3):93-96.[3]　.、[M].:,2009.46.[4]　.[J].,2009,2:66-68.[5]　,,,.[J].,2009,32(6):72-74.[6]　　,.[J].,2004,V(N):30-32.(上接第64页)。-Fe(Ⅲ),Fe(Ⅱ),Cr(Ⅵ)。3　　pH-Fe(Ⅲ)Cr(Ⅵ)。,Fe(Ⅲ)Cr(Ⅵ)。Al(Ⅲ)Cu(Ⅱ)-Fe(Ⅲ)Cr(Ⅵ)。Fe(Ⅲ)-Cr(Ⅵ):。[][1]　ZayedAM,TerryN.ChromiumintheenⅥronment:factorsaf-fectingbiologicalremediation[J].PlantSoil,2003,249(1):139-156.[2]　WittbrodtPR,PalmerCD.Effectoftemperature,ionicstrength,backgroundelectrolytes,andFe(Ⅲ)onthereductionofhex-valentchromiumbysoilhumicsubstances[J].EnⅥronSciTechnol,1996,30(8):2470-2477.[3]　HugSJ,LaubscherHU.Iron(Ⅲ)catalyzedphotochemicalre-ductionofchromium(Ⅵ)byoxalatecitrateinaqueoussolu-tions[J].EnⅥronSciTechnol,1997,31(1):160-170.[4]　TzouYM,WangSL,WangMK.FluorescentlightinducedCr(Ⅵ)reductionbycitrateinthepresenceofTiO2andferrici-ons.ColloidandSurfacesA:Physicochem.Eng[J].Aspects,2005,253(1):15-22.[5]　,,　,.(Ⅲ)-(Ⅵ)[J].,2005,24(3):307-310.[6]　,,　,.(Ⅲ)-(Ⅵ)[J].,2005,25(6):419-422.[7]　..[S].:,2001.[8]　　,　,　,.(Ⅲ)-[J].,2002,21(1):87-91.[9]　LoeppertRH,InskeepWP.Iron.In:SparksDL(ed)Methodsofsoilanalysis,SoilSciSocAm,Madison,WI,1996.[10]　ZhangZ,WuF,DengNS.PhotochemicalreductionofCr(Ⅵ)inaqueoussolutionscontainingFe(Ⅲ)-hydroxycom-plexes[J].ToxicolEnvironChem,2001,82(1):129-137.(上接第76页)[][1]　,　,　.[J].,2008(1):14-16.[2]　MogensHenze.[M]..:,1999.[3]　,,.[J].,2003,23(5):18-20.[4]　RichardSedlak.PhosphorusandNitrogenRemovalfromMunici-palWastewaterPrinciplesandPractice(SecondEdition)[M].NewYork:LewisPublishers,1999.[5]　Metcalf,EddyInc.WastewaterEngineerTreatmentandReuse[M].NewYork:McGraw-Hill,2003.[6]　,　,.[J].,2006,26(3):26-30.[7]　　,　.[J].,2002,24(2):81-84.