电解法处理采油废水的研究庞娟娟

Astudyontreatmentofoilproducingwastewaterwithelectrolysis庞娟娟(,　300000):以提高电解处理工艺的效率、降低处理成本、易于实现工业化为目标,筛选出适合处理采油废水的高效电极材料,考察了电解法处理采油废水的各种影响因素,确定实验室电解氧化法处理采油废水的适宜条件。研究结果表明:以析氯阳极+铁阴极作为试验电极材料,在电流密度为15mA/cm2,电解时间为80min,水板比约0.10cm2/cm3,弱碱性,极板间距为10mm的条件下对采油废水进行电解处理,COD去除率可达到73.0%,NH3-N去除率可达到98.5%。:采油废水;电解;处理Abstract:Thehighefficiencyelectrodessuitablefortreatingoilproducingwastewaterwerescreenedoutforthepurposeofimprovingelectrolysistreatmentefficiency,reducingcostandbeingeasytorealizeindustrialization.Thedeterminingfactorsonsimulatedoilproducingwastewaterwereinvestigated.Theresultsshowedthatundertheconditionofusingextractchlorineanticathodeandironcathode,currentdensitywas15mA/cm2,electrolysistimewas80minutes,pHwasalkalescent,waterboardratiowas0.1cm2/cm3andelectrodesdistancewas10mm,theremovalrateofCODandNH3-Ncanrespectivelyreachedto73.0%and98.5%.Keywords:oilproducingwastewater;electrolysis;treatment:X703.1　　　　　:B　　　　　:1009-4032(2008)01-057-04　　[1]:、、、、(SRB、TGB),HCO3-、Ca2+、Mg2+、Ba2+、Cr2+;。,“—”“—()—”[2-3]。,、、、、[4],。,。1　1.1　、、、,1。HH1711,,4000W。,,。(),。1　1.2　CODCr,NH3-NNH3-N,《》[5]。2　2.1　,(Pt、5720082　　　　　　　　　　　　　　　　　　　　　　　　　　　24　1)、(SnO2/Ti、PbO2/Ti、IrO2/Ti、)、(Fe、Al)。:20cm2、10mm、pH7.0、0.20A、0.1cm2/cm3。,2。,+,COD79.6%。2.2　CODCODCr487.0mg/L,+,0.20cm2/cm3(100mL),20mm,90min,pH7.0,20.0℃,COD,1。2　1　COD/mA·cm-202.551015202530CODCr/mg·L-1487.3326.0202.2168.6136.492.191.181.9COD/%0.033.158.565.472.081.181.383.2/V0.02.813.063.634.004.224.685.11　　1,020mA/cm2,COD;20mA/cm2,COD,。COD、、,15mA/cm2。2.3　CODCODCr475.9mg/L,+,0.20cm2/cm3(100mL),20mm,15mA/cm2,pH7.0,20.0℃,COD,2。2　COD/min020405060CODCr/mg·L-1475.9365.5307.4285.5198.5COD/%0.022.225.430.048.3/min80100120150180CODCr/mg·L-1135.6119.5112.3103.390.4COD/%58.566.973.978.381.0　　2,COD。80min,COD。80min,COD,:①,,;②,,。:,COD,[6]。COD,80min。2.4　CODCODCr500.0mg/L,+,20mm,15mA/cm2,80min,pH7.0,20.0℃,COD,3。3,(),COD。,,,;,,COD。,0.10cm2/cm3,200mL。5820082　　　　　　　　　　　　　　　　　　　　　　　　　　　24　12.5　pHCODCODCr438.1mg/L,+,0.10cm2/cm3(200mL),15mA/cm2,20mm,80min,NH3-N54.3mg/L,20.0℃,pHCOD,4。3　COD/cm2·cm-30.200.100.070.050.03/mL100200300400600/V3.833.783.743.843.86CODCr/mg·L-1153.0162.0192.0224.0291.0COD/%69.467.661.655.241.84　pHCOD、NH3-NpH1.53.04.56.58.09.511.013.0/V3.743.733.753.843.893.883.843.78CODCr/mg·L-1203.7208.1205.9180.5152.5152.0132.7155.1NH3-N/mg·L-118.312.510.26.94.03.22.32.9COD/%53.552.553.058.865.265.369.764.6NH3-N/%66.377.081.287.392.694.195.894.7　　4,pH,。pH,。,pH,。Ca2+、Mg2+,pH,[7],,,。,,。2.6　CODCODCr474.1mg/L,+,0.10cm2/cm3(200mL),15mA/cm2,80min,pH8.0,20.0℃,COD,5。5,,。,,,。,,。5　COD/mm510203040/V3.153.303.563.744.14CODCr/mg·L-1121.0144.6179.2190.6188.2COD/%74.769.562.259.860.32.7　CODCODCr405.4mg/L,+,0.10cm2/cm3(200mL),15mA/cm2,80min,10mm,pH8.0,COD,6。6　COD/℃2030405060/V3.793.823.783.833.81CODCr/mg·L-1169.1141.1124.1117.2111.1COD/%58.365.269.471.172.6　　6,,。,COD。Cl2ClO-592008　　　　　　　　　　　　:　　　　　　　　　　　　1,,Cl2,。,,。2.8　CODCr467.4mg/L,NH3-N58.4mg/L,+,0.10cm2/cm3(200mL),15mA/cm2,10mm,80min,pH8.0,20.0℃,Cl-1COD,7。7　Cl-1CODCl-1/mg·L-1200001500010000500020001000/V3.903.873.863.93.893.87Cl-1/mg·L-1303519761125674178104CODCr/mg·L-1100.583.2112.2134.6176.7208NH3-N/mg·L-10.130.250.540.921.503.40COD/%78.582.276.071.262.255.5NH3-N/%99.899.699.198.497.494.2　　7,,Cl-1,CODNH3-N,。CODNH3-N。RicardoA.Torres[7]。Cl-1NH3-N。,。2.9　:+,15mA/cm2,80min,0.1cm2/cm3,pH8.0,10mm。CODCr476.0mg/L,NH3-N53.6mg/L,8。8　/mg·L-1/mg·L-1CODCrNH3-NCODCrNH3-NCOD/%NH3-N/%/V476.053.6128.70.7873.098.53.913　+,15mA/cm2,80min,0.10cm2/cm3,pH,10mm,COD73.0%,NH3-N98.5%,《》;,。,、,。:[1],.[J].,2003,20(1):43-48.[2],.[J].,2000,26(7):32-35.[3],,.[J].,2000,29(6):327-328.[4],,,.[J].,2003,26(3):60-62.[5]《》.[M].:,1989.[6],,.[J].,1998,19(3):21-25.[7]TorresRA.Electrolyticoxygengenerationforsubsurfacedelivery:Effectsofprecipitationatthecathodeandanassessmentofsidereac-tions[J].WaterResearch,2002(36):2243-2254.:2007-06-06;:2007-11-30:(1977-),,,,。E-mail:[e-mail]6020082　　　　　　　　　　　　　　　　　　　　　　　　　　　24　1