海泡石的改性及其在铅锌冶炼废水处理中的应用李琛

13302013101671—1815201330-9153-05ScienceTechnologyandEngineeringVol.13No.30Oct．20132013Sci.Tech.Engrg.1217230012475001MmsMmsMmsMms＞pH＞t。Mms3.5g/LpH=460minPb2+、Zn2+、Fe2+、Fe3+、As3+、Cu2+、Cd2+83.69%、98.82%、97.35%、99.17%、99.62%、89.18%、96.3%。Mms。X703．1A201352711JK07602011K17-03-10、slgky12-291980—。。[e-mail]。、1。、、、2—4。。-5900m2/g6、、、、、。。11。2。Fe3+Fe2+Fe3+、。7Mms。7①100②Fe3+Fe2+1.75∶10.7mol/L③1100g/L2350K100r/minpH101h1%SiO2MgOCaOAl2O3Fe2O3K2OMnONa2OP2O5TiO2FeO44.7221.3617.840.230.20.150.030.080.020.010.0115.35《》8。105℃M11000℃10minM2C=M1－M2/M1。2mg/LpHPb2+Zn2+Fe2+Fe3+F－As3+Cu2+Cd2+0.5～1.0106.2159.14432.5187.3296.828.537.030.62。350K2h350K8h100。22.1。Ei=Ci0－CiCi0×100%。Ci0img/LCiimg/L。Fj=∑7i=1Ki×Gi×EiKiiGiiEiji。3。3iPb2+Zn2+Fe2+Fe3+As3+Cu2+Cd2+Ki15.122.661.526.64.0610.09Gi2.21.8112.51.22.52.2iCE3000iCE3000101—1、YLE—1000、GＲ—200AND、722EVAＲIAN、pHS—3CpH、SHZ—DⅢ、。33.1Mms3.1.1Mms100mL250mL2.5g/L、3.0g/L、3.5g/L、4.0g/L、4.5g/LMms60min1。1Mms13.5g/L106.2mg/LPb2+95.37%28.94mg/gPb2+4.92mg/L。4519133.0g/L159.14mg/LZn2+95.64%。3.5g/L432.5mg/LFe2+78.59%。3.0g/L187.3mg/LFe3+79.28%。3.0g/L28.53mg/LAs3+89.55%。4.5g/L7.03mg/LCu2+86.32%Cu2+Cu2+。3.5g/L0.62mg/LCd2+88.26%。9、Pb2+3Pb2+。3.1.2pH100mL250mLpH1、2、3、4、5、6、7、860minMms3.0g/L2。260minMms3.0g/LpH=6106.2mg/LPb2+96.31%。pH=1159.14mg/LZn2+95.64%。pH=5432.5mg/LFe2+92.35%。pH=8187.3mg/LFe3+96.32%。pH=128.53mg/LAs3+89.55%。pH=67.03mg/LCu2+98.46%。pH=30.62mg/LCd2+91.71%。3.1.3100mL250mLMms30g/LpH510、20、30、40、50、60、70、80、90、100min3。3、pH=5Mms30g/L106.2mg/LPb2+50minPb2+92.45%Pb2+。159.14mg/LZn2+2pHMms30minZn2+88.29%1Zn2+1。50min432.5mg/LFe2+Fe2+93.28%。40min187.3mg/LFe3+95.18%。80min28.53mg/LAs3+78.15%。60min7.03mg/LCu2+92.54%。80minCd2+0.62mg/LCd2+90.29%。3Mms3.2MmspH。L16435Pb2+、Zn2+、Fe2+、Fe3+、551930As3+、Cu2+、Cd2+、5。4MmsMms/g·L－1ApHB/minC12.013022.534033.045043.56605MmsABCPb2+Zn2+Fe2+Fe3+As3+Cu2+Cd2+12.013059.1568.3752.2879.2543.1732.1536.281055422.034071.3687.3476.2387.1471.3542.1756.261371732.045078.0296.6578.3478.2770.8836.5769.631420242.066079.4786.6778.2480.6864.4666.5868.171387352.514076.2379.8170.1590.6397.6551.1960.571357062.533076.0791.6875.6697.2581.6959.6185.281441672.546091.2794.5374.3291.6881.0774.3294.321482082.565091.4997.5475.6971.2675.2697.2435.131444693.015090.7478.7569.8280.6393.8562.5552.9313696103.036091.7791.6875.2196.2781.0271.6295.9214894113.043081.6994.5364.6198.1979.4174.2784.3214059123.064081.6897.6285.9381.5271.2897.6265.6914993133.516081.8791.8685.1481.2895.2871.3065.1914922143.535081.8994.3587.3298.0299.2574.5394.7115654153.544081.6697.4295.7286.4381.3487.5485.6115812163.563080.2278.5789.6170.9670.1798.7569.8914106K113086.513185.513283.75K21431314670.2514523K314410.514723.2514499.5K415123.514354.514627.25Ｒ20371537.751343.5K1～K4A、B、Ci。K1=10544+13717+14202+13873/4=13086.5。ＲKiKmax－Kmin2037=15123.5－13086.5。ＲKi。MmsMms＞pH＞t。A4B3C4Mms3.5g/LpH=460minPb2+、Zn2+、Fe2+、Fe3+、As3+、Cu2+、Cd2+88.69%、98.82%、97.35%、94.17%、96.62%、89.18%、96.3%。3.3Mms。。2mol/L、2mol/L、15g/LNaCl、1mol/LNaOH5-6。6Mms/%-/2mol·L－1/2mol·L－1NaCl/15g·L－1NaOH/1mol·L－111.212.276.810.7321.642.588.141.1233.824.3611.21.2644.567.1913.551.5356.7111.1321.272.381mol/LNaOH651913Mms5—Mms2.38%2mol/LMms5—Mms6.71%。15g/LNaCl2mol/LMms。41MmsMms＞pH＞t。A4B3C4Mms3.5g/LpH=460minPb2+、Zn2+、Fe2+、Fe3+、As3+、Cu2+、Cd2+88.69%98.82%97.35%94.17%96.62%89.18%96.3%。21mol/LNaOHMms5—Mms2.38%。2mol/LMms5-Mms6.71%。15g/LNaCl2mol/LMms。1OzcanASahinMOzcanASetal．Adsorptionofnitrateionsontosepioliteandsurfactant-modifiedsepiolite．AdsorptionScience＆AmpTechnology2005234323—3332.．2008069—113.Pb2+、Cd2+．2010061560—15674González-PradasESocías-VicianaMUrea-AmateMDetal．Ad-sorptionofchloridazonfromaqueoussolutiononheatandacidtreatedsepiolites．WaterＲesearch20053991849—18575ValentínJLLópez-ManchadoMAＲodríguezAetal．Novelan-hydrousunfoldedstructurebyheatingofacidpre-treatedsepiolite．AppliedClayScience2007364245—2556KocaobaS.AdsorptionofCdIICrIIIandMnIIonnaturalsepiolite．Desalination20092441/324—307.CrⅥ．2012103465—34698.．200467—1029.、．201121137—139ModificationandApplicationofSepioliteInleadandZincSmelterWastewaterTreatmentLIChen1YUJun-yang2SchoolofChemistryandEnvironmentalScienceShaanxiUniversityofTechnology1Hanzhong723001P．Ｒ．ChinaNetworkInformationCenterHenanUniversity2Kaifeng475001P．Ｒ．ChinaAbstractThewastewaterofleadandzincsmelterinHanzhongwastreatmentedwithmagneticmodifiedsepio-liteasadsorbent.Thecomprehensivetreatmenteffectwasassessmentedbyorthogonaltestdesignandgradingmeth-odformulti-index.TheresultsshowedthattheinfluentialextentisthedosingquantityofMms＞thepH＞there-actiontimethebestcombinationisthedosingquantityofMmsis3.5g/LpHofwastewateris4andthereactiontimeis60minutes.ThentheremovalratesofheavymetalionssuchasPb2+、Zn2+、Fe2+、Fe3+、As3+、Cu2+andCd2+is83.69%98.82%97.35%99.17%99.62%89.18%and96.3%.Atlasttheregenerationperform-anceoftheadsorptionsaturationMmswasstudied．Keywordssepiolitemodifiedsepioliteleadandzincsmelterwastewaterregenerationofadsorbent751930