复合钙盐法回收高浓度含磷制药废水中的磷林冲

　60　9　　　　　　　　　　　　Vol.60　No.9　20099　　CIESC　Journal　　　September　2009林　冲,李　娜,柯爌琼,杜冬云(,/,430074):;;;DMF:X7　　　　　　　:A:0438-1157(2009)09-2346-05RecoveryofphosphorusfrompharmaceuticalindustrywastewaterwithcompositecalciumLINChong,LINa,KEKuangqiong,DUDongyun(InstituteofEnvironmentEngineeringandScience,SchoolofChemistryandMaterialScience,HubeiKeyLaboratoryforCatalysisandMaterialScience,SouthCentralUniversityforNationalities,Wuhan430074,Hubei,China)Abstract:Anewmethodofrecoveryofphosphorusfromhighconcentrationphosphorous-containingpharmaceuticalindustrywastewaterwithcompositecalciumwasproposed.Itwasfoundthattheefficiencyofphosphorousremovalfromthewastewaterwasaffectedbydosageofcompositecalcium,pHofsolution,andthemoleratioofcalciumchlorideandcalciumoxideinthecompositecalcium.Theproductionofphosphorusresidue,theavailablephosphorus(calculatedasP2O5)andN,N-dimethylformaide(DMF)inthephosphorusresiduewerealsodetermined.Thecontentofphosphorusinthewastewatercouldbereducedfrom31000mg·L-1tolessthan0.5mg·L-1,andthecontentoftheavailablephosphorusinthephosphorousresiduewasabout18%,approachingthenationalstandardforsuperiorgradeproductofphosphorusfertilizer.Furthermore,thepoisonousmaterialDMFwasnotdetectableintheresiduebyGC-MSandspectraphotometry.Keywords:phosphorus-containingwastewater;compositecalcium;phosphatefertilizer;DMF　　2009-04-20,2009-06-24。:。:(1985—),,。:(200860423199);(2008BCB205)。　　,,20mg·L-1[1]。、、,、,。、、、、、、[2]。,　　Receiveddate:2009-04-20.Correspondingauthor:DUDongyun,[e-mail]　(、)、、,。Song[3]Ca/P1.67,pH7.0～9.0,;Montastruc[4],Mg(OH)2,;Seckler[5-6],,5μm10s,50s。,,,。[7-8][9],[10-13],,、。Clark1997(MgNH4PO4·6H2O)[14],(FBR)。[15-16],。,,[17],,,。,[18]。、、,1.1～1.2g,80～100[19]。,[20],[21],。,、CODCr、,,1。1　Table1　Qualityofphosphorus-containingwastewaterCTP/mg·L-1COD/mg·L-1Chroma(times)pHCDMF/mg·L-13100049500264.746.32,。-,,,,,。1　1.1　(,80%);();();JJ-4A();SHZ-D();DHG-9030();722E();();SHA-C();Aglient6890N-5973N()。1.2　《》()(A)[22];GB20413—2006;DMF[23],R2=0.9993。2　2.1　100ml,15、17、19、21、23、24g,pH7,30min,3min,。1。1　Fig.1　Effectofdosageonphosphateremoval　1,21g,。Ca2+∶P=3×40∶2×31,·2347·　9　　:31000mg·L-116.65g,125%。2.2　pH100ml,19.5g,pH5、6、7、8、9、10,30min,3min,。2。2　pHFig.2　EffectofpHonphosphateremoval　2,pH8,0.5mg·L-1。2.1,,,,。2.3　100ml,19.50g(17%),30%、40%、50%、65%、87%、110%、130%,pH8,45min,,,。3、4。3、4,27.30g,(P2O5),40g,18%()。1.6,,。2.4　　　100ml,19.5g,16.65g3.36g(3∶1,Ca2+,),14.8g4.48g(2∶1),11.1g6.72g(1∶1),6.5g7.9g(1∶2),4.88g8.85g(1∶3),12.3g,180min,3min,pH,。5、6。5、6,3∶1,2∶1,1∶1,32g。18%,·2348·　　　　　　　　　　　　　　　　　　　　　　　606　(P2O5)Fig.6　Effectofcalciumchlorideandlimemoleratiooneffectivephosphate(toP2O5dollars)　。2∶1,0.5mg·L-1。pH8,pH≥8,,[24]。2.5　DMFDMF,DMFⅡ(),,DMF,Ⅰ,DMF10mg·L-1,25mg·L-1[23]。DMF。2.5.1　用光度法测定DMF的含量　5.0g18%,50ml,DMF。。2.5.2　用GC-MS测定DMF的含量　5.0g18%,50ml,,0.2μm,GC-MSDMF。。2.6　,,,,,,4·kg-1。,、。2。2　()Table2　Economicanalysis(calculatedintheformofpertonpharmaceuticalindustrywastewater)GeneralofchemicalprecipitationRecoveryprocessreagent/CNY22125.02solidwastetreatments/CNY1280—valueofresources/CNY—160expenditures/CNY1302-34.983　　(1),:4.1g1.3g,pH8,180min,31000mg·L-10.5mg·L-1,。(2)18%,,320kg·(t)-1,。(3),,,,。References[1]　WanYazhen(),LiuJindun(),LuWeicai(),XiaoZhi'ang().Studyonremovingphosphorusfromindustrialwastewatercontainingphosphorus.IndustrialMineralsandProcessing(),2002(8):19-24[2]　MorseGK,BrettSW,GuyJA,LesterJN.Review:phosphorusremovalandrecoverytechnologies.TheScienceofTotalEnvironment,1998,212(1):69-81[3]　SongYonghui,HermannHHahn,ErhardHoffmann.Effectofsolutionconditionsontheprecipitationofphosphateforrecovery:Athermodynamicevaluation.Chemosphere,2002,48(10):1029-1034[4]　MontastrucL,Azzaro-PantelC,etal.Athermochemicalapproachforcalciumphosphateprecipitationmodelinginapelletreactor.ChemicalEngineeringJournal,2003,94:41-50[5]　SecklerMM,BruinsmaOSL,VanRosmalenGM.Phosphateremovalinafluidizedbed(Ⅰ):Identificationofphysicalprocesses.Wat.Res.,1996,30(7):1585-1588[6]　SecklerMM,BruinsmaOSL,VanRosmalenGM.Calciumphosphateprecipitationinafluidizedbedinelationtoprocessconditions.Ablackboxapproach.Wat.Res.,1996,30(7):1677-1685[7]　FytianosK,VoudriasE,RaikosN.Modellingof·2349·　9　　:phosphorusremovalfromaqueousandwastewatersamplesusingferriciron.EnvironmentalPollution,1998,101:123-130[8]　ZhouYunan,XingXinhui,LiuZehua,CuiLiwen,YuAnfeng,FengQuan,YangHaijun.Enhancedcoagulationofferricchlorideaidedbytannicacidforphosphorusremovalfromwastewater.Chemosphere,2008,72(2):290-298[9]　ElisabethGalarneau,RonaldGehr.Phosphorusremovalfromwastewater:experimentalandtheoreticalsupportforalternativemechanisms.Wat.Res.,1997,31:328-338[10]　XuJianghe,LiRenbing.TreatmentofwastewatercontainingphosphorusbyPAFS.TechnologyofWaterTreatment,2005,31(12):49-51[11]　BaiShaoyuan(),XieQinglin().ExperimentsonremovaloflowPcontentwastewaterbycoagulationmethod.WaterPurificationTechnology(),2006,25(2):46-48[12]　ZhengHuaili(),LiuKewan(),LongTengrui(),ZhangHaiyan().Studyonpolyaluminumferricchlorideforphosphorusremovalinmunicipalwastewatertreatment.EnvironmentalChemistry(),2005,24(6):693-695[13]　ChenJing(),HeXuwen(),Zhang