沉淀超滤膜处理含镍电镀废水试验研究王伟

SCI-TECHINFORMATIONDEVELOPMENT＆ECONOMY2010203311.1。:NH3·H2O、NaOH、Ni2＋Ni2＋。1.2、、、pH、3。1.2.1。RR=1-cpcw!×100%1RE=1-cpcb!×100%212cb、cw、cp、。RRE。αβα=yA1-yA/xA1-xA3β=yAxA4xAyAA。1.2.2JwJw=VS·t5:VSt。JwmL/cm2·hL/m2·d。1.2.3、,:Jt=J1·tm6Jt、J1th1ht。6,:lgJt＝lgJ1＋mlgt77,m。22.11。1005－6033201033－0164-05:2010－10－19—037003:,Ni2＋,、、。X703A1164PES。PESTg＝230℃,30×10－10m～50×10－10m0.12MPa～0.5MPa;pH2～125℃～80℃:2m/s～5m/s:1s～3s;:12min～45min;:0.3MPa～0.6MPa。d32mm×280mmd23mm×260mm。50m2.2t/h220V0.75kW。2.2:。。。2.31250mL4250mLNH3·H2ONaOH、Na2CO3Na2SpH9。223℃60L/h0.1MPa、0.15MPa、0.2MPa、0.25MPa。323℃,60L/h40.1MPa、0.15MPa、0.2MPa、0.25MPa。5min,40min10min1h,。4。10min30min～50min40℃0.04MPa23℃、0.05MPa,。。54,。6、10min1hNi2＋,NiOH2。2.41。20.04MPa。32％＋Na2EDTA2％pH4。Fe、Ni、Cu、Mn。、。85％。40.1mg/L～4.0mg/L。pH。7230G。33.13.1.11NaOH。NaOHpH6,NaOHpH9,。2NH3·H2O。NH3·H2OpH6NaOHpH9,。3Na2CO3。Na2CO3pH6NaOHpH9。4Na2S。Na2SNiSH2SpH5～6,。4NaOH。3.1.2NaOH3.1.2.1NaOHNi2＋＋OH－→NiOH2↓。NiOH2,。3.1.2.2NaOHpH。:S＝KSPθ〔NiOH2〕×0.01pH/KWθ8KSPθ〔NiOH2〕NiOH225℃2.0×10－5KWθ25℃1.009×10－14。8NiOH2SpH2。Ni2＋10－5mol/LNiOH2。2Ni2＋10－5mol/LNiOH210－5mol/LpH9.5。NiOH2pH≥9.5。3.2—E-mail:[e-mail]1653.2.123℃、60L/h,1～4。。,。1,。,、,。2、。、,。3.2.223℃、60L/h3。3。、。3。。。30.20MPa。3:0.2MPa。3.2.3。2NiOH2pH0.10.05078910pH/mol/L10.1MPa/min051015202530354555/℃23232324252525262829/mL20.4415.3212.2410.9810.4210.1810.2410.3510.5510.22/L/m2·h65.2348.8939.0635.0433.2632.4932.6833.0333.6732.55/min051015202530354555/℃23232324262627272930/mL34.7826.5422.9820.1220.0818.9618.8718.3919.0119.11/L/m2·h11184.773.3464.2164.0960.5160.2258.6960.6760.99/min051015202530354555/℃23232324252626282930/mL50.840.1934.2331.9830.0629.929.4829.9530.2430.3/L/m2·h162.13128.27109.24102.0695.9495.4394.0995.5996.5196.720.15MPa30.20MPa40.25MPa/min051015202530354555/℃23232324252627283030/mL59.4638.0633.1830.4628.7828.5928.4528.5629.0129.16/L/m2·h189.77121.47105.8997.2191.8591.2490.891.1592.5993.0619017015013011090705030051015202530354555t/min/L/m2·h0.1MPa0.15MPa0.2MPa0.25MPa3—E-mail:[e-mail]166/min0510152025303545551.8m/s151.48115.6395.989.8184.7881.7980.7978.674.373.623.6m/s171.23130.92111.297.2191.8591.2490.889.7288.983.484.9m/s191.6151.5132.1118.6110.5106.710197.8696.5693.995.4m/s199.77160.2143133.12121.2115.69110.8107.3104.28102.68/L/m2·h6/min051015202530354555/℃23232324252626282930/mL50.840.1934.2331.9830.0629.929.4829.9530.2430.323℃162.1128.3109.297.888.384.483.278.576.574.125℃176.2139.4118.7106.395.991.890.585.383.280.628℃197.4156.2133119.1107.5102.8101.395.693.290.330℃211.5167.3142.5127.6115.1110.1108.6102.499.896.7/L/m2·h。0.2MPa23℃、25℃、28℃、30℃54。4。。4,30℃。3.2.40.20MPa、30℃1.80m/s、3.60m/s、4.90m/s、5.40m/sNiOH2656。5、6;。,。。5、63.6m/s。3.2.52525。25H2SO4NiOH2NiSO4,、,,。3.2.6:0.2MPa30℃3.6m/s40L/hNiOH27。4522020018016014012010080051015202530354555t/min/L/m2·h0.1MPa0.15MPa0.2MPa0.25MPa23℃25℃28℃30℃2101701309050051015202530354555t/min/L/m2·h1.8m/s3.6m/s4.9m/s5.4m/s480757065605550123456m/s/%5674727068020406080t/min/%7NiOH2—E-mail:[e-mail]167SCI-TECHINFORMATIONDEVELOPMENT＆ECONOMY20102033ExperimentalStudyontheTreatmentoftheNickel－containingElectroplatingWastewaterwithPrecipitation－ultrafiltrationMembraneWANGWeiABSTRACT:Throughprecipitationandmembranefiltrationtest,thispaperresearchestheeffectofthetreatmentofthenickel－containingelectroplatingwastewater,analyzestheprecipitationeffectofdifferentprecipitatorsonNi2＋,anddiscusestheinfluencesofoperationpressure,temperature,recirculationrateandconcentrationratioonthemembraneflux.KEYWORDS:nickel－containingelectroplatingwastewater;precipitationtest;membranefiltrationtest;membranefiltrationflux1—。2pHpH。3,0.20MPa30℃3.6m/s25。4—。1.M.2002.2.M.2000.3.J.2001333－36.────────────────197912003,037003.。。。。1810310701070、8104。3～511.36m～25.52m15.79m2°～5°。1010m～1045m2793.3m230.5m643855.7m2。U、3.5m30000t/d。1.6m3/t～1.97m3/t1.78m3/t171.71m2/MPa2d～428.80m2/MPa2d。1005－6033201033－0168-04:2010－10－190370018103、、。。TD713A168