改性淀粉絮凝剂的制备及其在造纸废水处理中的应用

TransactionsofChinaPulpandPaperVol.30No.22015350002、/SAM。SAMSAM、pH。2∶1、2.0mmol/L、40℃、3h、pH4.0SAM68.5%。SAMSAM12mg/L、pH7～9、30℃CODCr88.4%91.2%BOD585.5%93.3%。TQ314.253X793A1000-6842201502-0034-052014-11-25JA09068JB130366112c07a72014J01069K55NI946A201310389024201410389024。1971。[e-mail]、、、1-3。2080、、4-6。、、7-89。、、。、/SAMSAM。11.1。50℃、、≥99.999%。。BOD5372mg/LCODCr1252mg/LSS185mg/LpH935℃126mg/L5.6%。1.2Nicolet380GZ20722PH51pHEVTECHBSA22E。1.31.3.1SAM5.0g、250mL150mL。80℃30min40℃15min433023h20%～30%SAM。1.3.2、、4、。Alpha15061。2.0g3∶24h360℃SAM23。=C2－C1C2×100%1=W2－W0W2×100%2=W2－W0W1－W0×100%3C2、C1、mol/LW0mgW1mgW2mg。1.3.3SAMKBrKBrFI-TA。1.3.4250mL200mLSAMpH。200r/min1min80r/min3min15min、CODCr。1.3.5CODCr、、3SAM。BOD5。CODCrGB11914—89QZ20Alpha1506430nm100%。。CODCr、45。CODCr=CODCr－CODCrCODCr×100%4=－×100%522.1SAM2.1.15g2∶11。11.0～2.0mmol/L2.0mmol/L88.0%。。2.0mmol/L。12.1.25g2.0mmol/L1∶1、2∶1、3∶1、4∶12。22∶1、、2∶1533022。10。。。2∶1。2.2SAMSAM3。560cm－1、704cm－1—CH21090cm－1C—O1410cm－1C—H2920cm－1C—H3420cm－1—OH。15701660cm－1—NH2CO570、704、1090、1410、29203420cm－1SAM。3SAM2.32.3.1SAM25℃、pH7SAM3、6、9、12、1518mg/L、CODCr4。4SAM4SAM0～12mg/L、CODCr、12mg/L87.4%CODCr84.3%86.6%12mg/L、CODCr、。SAM11SAM。SAM。12mg/L。2.3.212mg/L、pH715、20、25、30、3540℃5。5、CODCr30℃93.3%91.2%CODCr88.4%30℃。12。、633025。30℃。2.3.3pH30℃、12mg/LpH3、5、7、9、116。6pH6pH3～7pH、CODCr、pH7～9、CODCr、pH9。SAMpH7～9。2.3.4SAM12mg/L30℃pH7～993.3%91.2%CODCr88.4%BOD554mg/L85.5%。pH935℃pHSAM12mg/L。86.8%CODCr83.1%80.6%BOD579mg/L、78.8%。pHSAM。SAM。3、/SAM。5g2∶12.0mmol/L40℃pH4.03h。、。SAMSAM12mg/L、30℃、pH7～9。CODCr88.4%、91.2%、93.3%BOD554mg/L85.5%。1．J．200928836．2．J．200621247．3．J．201138266．4KarmakarNCSabtryBS．Flocculatingofchromiteorefinessuspen-sionusingpolysacchridebasedgraftcopolymersJ．BullMaterialScience2002256477．5ＲathSHSinghＲP．OnthecharacterizationofgraftedandungraftedstarchamylaseamylaseandamypectinJ．JournalofAppliedPolylmerSeience19987091795．6KrishnamoorthiSSinghＲP．Synthesischaracterizationflocculationandarcheologicalcharacteristicsofhydrolyzedandunhydrolyzedpoly-acrylamide-graftedpolyvinylalcoholJ．JournalofAppliedPoly-merScience200610152109．7．J．733022008261232．8．D．2007．9．J．201029143．10．J．2008966．11．J．2004334234．12．J．200232242．PreparationofModifiedStarchFlocculantandItsApplicationinPaperMillWastewaterTreatmentLIAOYi-qiang*LUZe-xiangZHENGDe-yongLINMingWEIQi-huaZHANGHuiXIEYong-qunCollegeofMaterialEngineeringFujiangAgricultureandForestryUniversityFuzhouFujianProvince350002*[e-mail]ftingmethodusingcornstarchandacrylamideasrawmaterialceriumammoniumnitrateasinitiatorstarch/ac-rylamidecopolymerSAMflocculantwassynthesized．Itssurfacefunctionalgroupswereanalyzedbyinfraredspectrumconcerningitsappli-cationinwastewatertreatmenttheinfluencingfactorssuchasdosageofSAMwastewatertemperaturepHvalueofwastewaterwereinvesti-gated．Theresultsshowedthatgraftingrateofthestarchreachedamaximumvalue68.5%whenacrylamideandstarchmassratiowas2∶1concentrationofinitiatorwas2.0mmol/Lreactiontemperaturewas40℃pHvalueofthereactionsystemwas4.0.IＲspectrumanalysisin-dicatedthatacrylamidewassuccessfullygraftedontothestarchmatrix．TheappilicationexperimentalresultsshowedthatCODCrremovaleffi-ciencyofwastewaterwas88.4%BOD5removalefficiencywas85.5%removalrateofturbiditywas91.2%andtransparencyofthetrea-tedwastewaterwas93.3%whendosageofSAMwas12mg/Ltemperaturewas30℃thepHvaluewas7～9．Keywordsmodifiedstarchflocculantpapermakingwastewaterchemicalgrafting83