粉煤灰的改性及在含油废水处理中的应用杨子立

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1,1,2,2,2(1.,300130;2.,300131)[],。,。。,20g,1mL,6h,90%。,30℃,33g/L,pH=10,90%。[];;;[]X703.1[]A[]1005-829X(2011)12-0057-03Modificationofflyashanditsapplicationtothetreatmentofoil-bearingwastewaterYangZili1,LiuHongguang1,2,GuXihui2,LiLifeng2(1.HebeiUniversityofTechnology,Tianjin300130,China;2.CNOOCTianjinChemicalResearch&DesignInstitute,Tianjin300131,China)Abstract:Theflyashfromapowerplantwastehasbeenusedasrawmaterialanditssurfacesaremodified,soastoexpandtheirporediameters.Thepolymerquaternaryammoniumsaltgroupisgraftedonthesurfacesofflyash,inor-dertoavoidtheproblemofloweringthepollutantcarryingcapacityoffilterfromthebiologicalfixationgrowing.Theapplicationofmodifiedflyashtothetreatmentofoil-bearingwastewaterisinvestigated.Theresultsshowthatthebactericidalrateof20gflyash,whichwasmodified,canreach90%,whenthedosageofquaternaryammoniumsaltis1mL,andreactiontime6h.Underoptimumoperatingconditions:thetemperature=30℃,massconcentrationofadsorbent=33g/LandpH=10,theoilremovingrateofmodifiedflyashisabove90%.Theregenerativeexperi-mentofflyashhasbeenstudied,andtheregenerativeeffectisfavorable.Keywords:modifiedflyash;oil-bearingwastewater;adsorption;regeneration,2t〔1〕。,30%~40%,、、,。,、、,,〔2-3〕。,,,。11.1:(40%),;、、NaCl、KH2PO4、Na2HPO4,;、、,。:;TF-101S;-;;;OIL460;LDZX-75KB;BSP-250;Nicolet5700。:。:,85.2NTU、pH=7.82、Cr6+0.04mg/L、Cl-2542.5mg/L、30~50mg/L、82.9mS/cm。1.2,。20g80mL-,。80℃,1∶9。3112201112IndustrialWaterTreatmentVol.31No.12Dec.,201157,,,10h。1.3〔4〕。1.4250mL,150mL,HClNaOHpH,180r/min、30℃。。1.55g,250mL,、,150mL,6%。,。180r/min,。22.11.2,17.7mm、80℃、6h,,1。11,0~1mL,;1~10mL,90%;,95%。,1mL。2.21.2,17.7mm、80℃、1mL,,,,6h,。,6h。2.3,,。,:。10>90%。,,,。2.4,,。,,:4,>90%。。2.51。11,3448cm-1,1090cm-1,Si—O—Si;460cm-1,Si—O—Si。,3425cm-1,2925cm-1C—H,,。33.13.1.130℃、pH=10、/mL00.10.5151020/%5.072.582.690.594.395.296.82011-12,31(12)5824h,,2。22,,,5g,,,,。30~50mg/L,33g/L。3.1.233g/L、pH=10、24h,,:10~50℃,,30℃。3.1.3pH33g/L、30℃、24h,pH,3。3pHpH。3,。:,H+,。,Al3+、Fe3+,Fe(OH)3、Al(OH)3,,,。,pH=10。3.2,,。,,。,50℃、6%、72h,90%。,。3(1)20g,1mL,6h,90%。,10,>90%。,。(2)30℃、33g/L、pH=10,90%。,50℃、6%、72h90%,。[][1]WangJianmin,BanHeng,TengXinjun,etal.ImpactofpHandammoniaontheleachingofCu()andCd()fromcoalflyash[J].Chemosphere,2006,64(11):1892-1898.[2]SharmaYC,Uma,SinghSN,etal.FlyashfortheremovalofMn()fromaqueoussolutionsandwastewaters[J].ChemicalEngineeringJournal,2007,132(1/2/3):319-323.[3].[J].,2009(5):27-29.[4].[M].:,2002:1-10.[](1985—),2011,。:15001045387,E-mail:yangzili404@163.com。[]2011-10-10()2011-12,31(12),:59

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