粉煤灰基混凝剂制备及处理印钞废水研究刘转年

3　4环境工程学报Vol.3,No.420094ChineseJournalofEnvironmentalEngineeringApr.2009刘转年1,2　赵西成1　田平安3　魏胜波2(1.,710055;2.,710054;3.,710108)　　,。,。:/1∶4(w/v),/1∶3(w/v),40℃。5mL/100mL,98.37%。。　　　　X705　　　A　　　1673-9108(2009)04-0621-04StudyonpreparationofcoalflyahsbasedcoagulantanditsuseinbanknoteprintingwastewatertreatmentLiuZhuannian1,2　ZhaoXicheng1　TianPingan3　WeiShengbo2(1.Post-doctoralResearchStationofMaterialScienceandEngineering,Xi'anUniversityofArchitectureTechnology,Xi'an710055;2.CollegeofGeologyandEnvironment,Xi'anUniversityofScienceTechnology,Xi'an710054;3.InformatizationResearchLab,Xi'anMilitaryAcademy,Xi'an710108)Abstract　Coalflyashwastreatedbymicrowaveafterbeingballmilledandthenusedtopreparecoalflyashbasedcoagulant.Theresultshowedthatballmillingandmicrowavetreatmentcanincreaseyieldandqualityofcoagulant.Theoptimizedconditionofcoagulantpreparingweredeterminedthroughorthogonalexperiment,coalflyash/NaONsolution=1/4,w/v),coalflyash/mixedacid(HCl+H2SO4)=1/3(w/v),and40℃.Theremovalrateofturbiddegreeofbanknoteprintingwastewaterwas98.37%forcoalflyashbasedcoagulantwhen5mL/100mLcoagulantwasadded.Thecoagulationmechanismofcoalflyashbasedcoagulantwasdiscussed.Keywords　coalflyash;coagulant;banknoteprintingwastewater:(20070411124);(2006k07-G19);(06JC11):2008-08-02;:2008-11-25:(1968～),,,,、。E-mail:[e-mail]　　SiO2、Al2O3Fe2O3,AlFe40%。Si、AlFe,,。、[1]。Al、Fe,。,、。,、、,[2,3]。,Si、AlFe,。SiO2、Al2O3(3Al2O3·2SiO2),SiAl,[4][5,6],Si—Al,Si,Na2SiO3,,。。,,,。,,。31　1.1　:2。5h,/4∶1,250r/min。。。。,、、、、,。:PHS-3C;PanalyticalMinipal4X,X。VIS-7220,;OMECLSPOP3-III,。1.2　,4mol/LNaOH1h,;1mol/LH2SO4,pH5,2h;1mol/L(H2SO4∶HCl=1∶1,),Fe2(SO4)3,80℃2h,NaOH,2h。2,12h,(CFC)。1.3　,,,,,。,。2　2.1　X,SiO252.20%、Al2O329.30%、CaO4.90%、Fe2O33.83%、K2O1.87%、TiO21.01%、MgO0.73%、Na2O0.50%、BaO0.39、0.12%。,,(d50)27.43μm1.78μm。2.2　20.0g、,,25.86NTU,1。1,,。,,,,,,。1　Table1　Resultsoftreatingbanknoteprintingwaste-waterbycoagulantpreparedfromtreatedcoalflyash(g)(%)(%)18.139.3592.9217.7611.2094.4316.5117.4595.162.3　,,/、/、3,3。L9(33)-2,3。160.3NTU,11,pH9。3,3,。。,A2B1C2,:/1∶4,/1∶3,40℃。,A2B3C2,/1∶4,/1∶5,40℃。2　Table2　Factorsandlevelsoforthogonalexperiment/(w/v)A/NaOH(w/v)B(℃)C11∶31∶32021∶41∶44031∶51∶5606224:3　Table3　OrthogonalexperimentalresultsofcoalflyashbasedcoagulantABC(%)111192.7687.50212294.9096.80313395.2696.80421297.6799.22522393.7693.76623192.2696.80731395.5598.44832189.8693.75933283.3896.80K＊1282.92/281.10285.98/285.16284.88/278.05K2283.69/289.78277.52/284.31285.95/292.82K3268.79/288.99280.90/290.40284.57/289.00k1=K1/394.31/93.7095.33/95.0594.96/92.68k2=K2/394.56/96.5992.51/82.7795.32/97.61k3=K3/389.60/96.3393.63/96.8094.86/96.33R4.96/2.682.82/14.030.45/4.93A2/A2B1/B3C2/C2　　:＊/2.4　,。160.3NTU。,1。1,,5mL/100mL,,0.5h3h93.72%98.37%。,。,。,,,。10d,2。2,10d,,。270,PAC,,。2.5　6233,,,,。,Al(Ⅲ)、Fe(Ⅲ),,,,“”,;,,,,。,,,,,。3　　、。,,、。:/1∶4,/1∶3,40℃。5mL/100mL,98.37%。,。[1]MaohongFan,RobertC.Brown,ThomasD.Wheelock,etal.Productionofacomplexcoagulantfromflyash.Chemi-calEngineeringJournal,2005,106:269～277[2]ZouboulisA.I.,MoussasP.A.Polyferricsilicatesulphate(PFSiS):Preparation,characterisationandcoagulationbe-haviour.Desalination,2008,224:307～316[3]GaoBao-yu,YueQin-yan,WangYan.Coagulationper-formanceofpolyaluminumsilicatechloride(PASiC)forwaterandwastewatertreatment.SeparationandPurificationTechnology,2007,56:225～230[4],..,2007,(6):32～33[5],,,..,2006,(1):9～11[6],,..,2007,19(1):57～58624