化学还原法处理电镀含铬废水的工程应用

李国会1马相宾2裴(1.066004;2.057150),pH,,,,pHpH3~4,(GB219002008)0.2mg/LpHDiscussiononTreatmentofElectroplatingWastewaterContainingChromium()byChemicalReductionLIGuohui1MAXiangbin2PEIYu1(1.EnvironmentalManagementCollegeofChinaQinhuangdao,Hebei066004)AbstractWhenthereducingagentofsodiumbisulfiteisusedintreatingelectroplatingwastewatercontaininghexavalentchromiumandpHvalueofwastewaterisnotadjusted,therewasnothexavalentchromiuminqualitativedetection,buthexavalentchromiumagainappearsinwastewaterovertimeandleadssubstandarddrainage.Experimentalresultsandengineeringpracticeshows:Itcanobtainthesteadyqualityoftreatedwaterandmeetemissionstandard(GB219002008)thatpHvalueisnotadjustedtoincreasesodiumbisulfitedosageandpHvalueisadjustedto3to4withoutincreasingsodiumbisulfitedosage.Thecontentofhexavalentchromiumislessthan0.2mg/L.KeyWordssodiumbisulfitehexavalentchromiumchemicalreductionpHvalue0,,,,100,[1-2],1,20~30m3,,10~30mg/L,pH6~72,,,,,,,,11pH3~4,pH8~93(1)1,:IH65-80-160,32m,25t/h;1,:SL60-50-160;1,:SL60-100-180;1,:65SG30-15;1,:TCK-100(2),1,:6.5m4.5m3m,(3),1,:6m4.5m3m(4):TA-30,,1,:4m5m,3h(5),1,:1m3m,:10t/h(6),1,:4.5m1.5m3m,44.1pH,,,4.2(15)12IndustrialSafetyandEnvironmentalProtection20113710October2011,,,,,FND-CASS,(),,2.3TP55,TP3~4mg/L,TP0.6~0.8mg/L,78%~83%,55TP,FND-CASSCASSCASSTP1.0~2.0mg/L,,:CASS,,,,1.0mg/LFND-CASS,-,,,,,3(1)FND-CASS,6h,COD29~33mg/L,88%~91%;5.3~6.1mg/L,82%;7.2~9.5mg/L,80%;0.8mg/L,82%(2),,,CASS[1].[M].:,2002:2-4.[2].[M].3.:,1989.[3].MSBRAAO[D].:,2000:12.杨爽,女,1980年生,河北辛集人,硕士学位,现为安阳工学院化学与环境工程系讲师,研究方向为城市污水处理(:2010-09-13)(12)(1)1%,;1%(),,pHpH(2)1000mL,15.2mg/L,100mL,pH6~71%,5min50mL2mL,,,7.5mL,20mL6h8h;pH3~4,6.5mL1%,,,1%,pH2.5mL5(1)pH,,,,(2)pH3~4,,(3)pH,,(4)pH3~4,,,GB2190020080.2mg/L,[1],,.[M].:,2003:39-48.[2],,.[M].:,2007.李国会,男,1973年生,硕士,研究方向:水处理技术和大气污染控制技术(:2010-09-19)15