PSAFPD絮凝剂的研制及在造纸废水中的应用

Sep．2016369ModernChemicalIndustry20169PSAF－PD*210009Box－BehnkenDesignBBD－PSAF－PD。nAl/nFe＞PDωPD＞TnAl/nFe=2.33ωPD=0.44%T=41.12℃。PSAF－PD0.04mL/mL、、96.89%、97.70%、89.02%。PSAF－PD0.8mL/mLCOD、、、UV25478.88%、92.06%、96.07%、79.12%。PSAF－PDPSAF。PSAF－PDX703．5A0253－4320201609－0104－05DOI10．16606/j．cnki．issn0253－4320．2016．09．025PreparationofPSAF-PDcompositecoagulantanditsapplicationinpapermakingwastewaterXIONGLi-liGAOLiQINDong-lingYANGGang*XINGWei-hongStateKeyLaboratoryofMaterials-OrientedChemicalEngineeringNanjingTechUniversityNanjing210009ChinaAbstractThecoagulantstabilityandperformanceofanoveldoublemachinecoagulantpolyaluminumsilicateiron-polydimethyldiallylammoniumchloridePSAF-PDisstudiedbyusingsinglefactoranalysismethod．ThentheBox-BehnkenDesignBBDmathematicalmodelisusedtooptimizethepreparationconditionsofPSAF-PD．TheinfluenceoftheconditionsontheresponsevalueisnAl∶nFe＞ωPD＞T．Theoptimumpreparationconditionsare2.33ofnAl∶nFe0.44%ofωPDand41.12℃ofreactiontemperature．TheremovalrateofCODchromaticityturbidityUV254frompapermakingwastewaterare78.88%92.06%96.07%and79.12%respectivelybyusing0.8mL/mLofPSAF-PDascoagulationagent．IncomparisonwiththecommercialPSAFPSAF-PDexhibitshighercoagulationefficiency．Keywordscompositecoagulantresponsesurfacemethodology[e-mail][e-mail]1。、、。2008。PSAF、2。PD3。PD4。PDPSAF、、。。BBDPSAF－PD、、。11.1、、、、、、、45%。DＲ2800－HACH2100Q－Lambda950－PerkinElmer。·401·20169PSAF－PD1.21.2.1PSAF－PD5－625℃20mL20%350r/min20mL6.4%1mL/min30min。20%pH260min。、。30min30minPD1h30min。1.2.2500mL200mL350r/min2min1min200r/min2min150r/min1min30min、、COD。1.2.3、、1g/L2.5mg/L2.5mg/L3h30min。=129NTU=1525UV280=0.38pH=7.60CSi=1.650mg/LCAl=0.023mg/LCFe=0.036mg/L。1.2.430℃。nAl+Fe/nSi=27－8nAl/nSi、nFe/nSi、nAl/nFe9、。BBDnAl/Fe、ωPD、T、、0.04mL/mL331711BBD－101nAl∶nFeA159ωPD/%B0.20.61T/℃C2035502ABC/%/%/%101－182.883787.639374.7361210173.255878.590268.7323－10－188.527191.868983.4181401187.674490.196784.4293500093.798494.950883.86926－1－1094.666796.786987.3548700092.403193.737784.296381－1－175.969079.639369.6835910070.775275.770565.09021000092.930293.491882.62861111070.069874.721364.10521200092.713294.868984.64981300092.310192.229584.42131400－193.271394.62386.970215－1－1185.658989.639379.322916－1－1190.000092.786984.98061711089.302392.45984.74782。3。10Y=A0+∑mj=1AjXj+∑mj=1∑mi=1jiAjiXjXi+∑mj=1AjjXj1YXj、XiA0AjXjAjiXjXiAjjXj。BBDXj=xj－x0/x2Xjxjx0x。22.12.1.1nAl/nFenAl/nFe1。1。nAl/nFenAl/nFe=1。·501·36912.1.2nAl/nFenAl/nFe2。1—2—2nAl/Fe2nAl/nFenAl+Fe/nSi=2、nAl/nFe=5。PSAF94.63%92.82%。2.1.3ωPDωPD3。1—2—3ωPD3ωPDnAl+Fe/nSi=2、nAl/nFe=5、ωPD=0.3%PSAF－PD96.36%95.81%PSAF－PDPSAF。2.22.2.1Y1=+92.83－9.46×A－2.05×B+2.04×C－0.13×A×B－0.57×A×C+0.11×B×C－7.71×A2－2.62×B2－3.66×C23F=135.07Prob＞F＜0.05P＜0.0001LackofFit=4.91=0.0792＞0.05Ｒ2=0.9943Ｒ2adj=0.9869Ｒ2pred=0.926131.32＞4。4。aωPDnAl/nFebTnAl/nFecTωPD44nAl/nFenAl/nFenAl/nFe=3ωPDωPD=0.4%T=40℃。nAl/nFe＞T＞ωPD。2.2.2Y2=+93.38－8.38×A－1.73×B+1.41×C－0.15×A×B－0.016×A×C+0.15×B×C－6.40×A2－1.55×B2－2.24×C24F=73.47Prob＞F＜0.05P＜0.0001LackofFit=0.97=·601·20169PSAF－PD0.4885＞0.05Ｒ2=0.9895Ｒ2adj=0.9761Ｒ2pred=0.919823.95＞4。5。aωPDnAl/nFebTnAl/nFecTωPD55nAl/nFenAl/nFenAl/nFe=3ωPDωPD=0.4%T=40℃。nAl/nFe＞ωPD＞T。2.2.3203、280nm280nm280nm6。Y3=+83.97－9.36×A－1.67×B+2.82×C－0.74×A×B－0.022×A×C+1.01×B×C－6.16×A2－1.34×B2－1.76×C25F=61.54Prob＞F＜0.05P＜0.0001LackofFit=5.09=0.0749＞0.05Ｒ2=0.9875Ｒ2adj=0.9715Ｒ2pred=0.837723.82＞4。aωPDnAl/nFebTnAl/nFecTωPD66nAl/nFenAl/nFeωPD。nAl/nFe＞T＞ωPD。2.3DesignExpert8.0BBD3、4、5nAl/nFe=2.33ωPD=0.44%T=41.12℃。PSAF－PD、、97.71%、97.81%、90.88%33。3、、1.11%、0.11%、2.05%。3/NTU/%/%UV280/absUV280/%13.9196.973597.700.04189.2824.6896.373997.440.04887.4533.4597.333197.970.03790.334.0196.893597.700.04289.022.4UV254·701·369CCCOUV25411。PSAF4。COD、、、UV2547。4/NTUCOD/mg·L－1pH/ms·cm－1TDS/mg·L－1SS/mg·L－1TOC/mg·L－1UV254/abs57.48654257.52.3512800120129.6294.42abcd1—PSAF2—PSAF－PD3—PSAF77PSAF1.0mL/mLCOD、、、UV25472.06%、88.10%、92.75%、75.08%PSAF－PD0.8mL/mLCOD、、、UV25478.88%、92.06%、96.07%、79.12%PSAF1.2mL/mLCOD、、、UV25451.76%、89.12%、94.06%、52.11%。PSAF－PDPSAF。31BBDnAl/nFe、ωPD、T、、17。。nAl/nFe＞ωPD＞TnAl/nFe=2.33ωPD=0.44%T=41.12℃。PSAF－PD、、96.89%、97.70%、89.02%1.11%、0.11%、2.05%。2PSAF－PD。PSAF－PD0.8mL/mLCOD、、、UV25478.88%、92.06%、96.07%、79.12%。PSAF－PDPSAF。1．2014M．2014．2．J．2010303254－257．3SunCZYueQYGaoBYetal．SynthesisandflocpropertiesofpolymericferricaluminumChloride-polydimethyldiallylammoniumchloridecoagulantincoagulatinghumicacid-kaolinsyntheticwaterJ．ChemicalEngineeringJournal201218529－34．4WangJPChenYZGeCXetal．Optimizationofcoagulation-flocculationprocessforapaper-recyclingwastewatertreatmentusingresponsesurfacemethodologyJ．ColloidsandSurfacesAPhysicochemicalandEngineeringAspects20073021204－210．5FuYYuSL．Characterizationandphosphorusremovalofpoly-si-licic-ferriccoagulantJ．Desalination2009247442－455．6．J．2014341084－87．7TolkouAKZouboulisAI．Synthesisandcoagulationperformanceofcompositepoly-aluminum-ferric-silicate-chloridecoagulantsinwaterandwastewaterJ．DesalinationandWaterTreatment2015533309－3318．8．nAl3+/nFe3+PAFCJ．201434251－54．9DietzelM．Dissolu