BM二代菌去除电镀废水中重金属离子的效果研究马王钢

4　2环境工程学报Vol.4,No.220102ChineseJournalofEnvironmentalEngineeringFeb.2010BM马王钢1　孙培德1＊　汪泽艾3　宋英琦1　赵开方2　张　轶1　方　瑾1(1.,310012;2.,310012;3.,310011)　　BM,BMCr6+、Ni2+,:10～30℃,pH=2,Cr6+100mg/L,10min,1∶200Cr6+98%;10～30℃,pH=8.5,Ni2+100mg/L,10min,1∶200Ni2+96%;Cr6+Ni2+99%。　　BM　　　X703　　　A　　　1673-9108(2010)02-0301-04RemovalofheavymetalsfromelectroplatingwastewaterbysecondgenerationbacteriaofBMMaWanggang1　SunPeide1　WangZeai3　SongYingqi1　ZhaoKaifang2　ZhangYi1　FangJin1(1.CollegeofEnvironmentalScienceandEngineering,ZhejiangGongshangUniversity,Hangzhou310012,China;2.EnvironmentalDesignResearchInstitute,ZhejiangGongshangUniversity,Hangzhou310012,China;3.ZhejiangTaidaEngineeringConsultingCompany,Hangzhou310011,China)Abstract　ThepotentialofBMsecondgenerationbacteriaforheavymetalsremovalfrombothsimulatedandelectroplatingwastewaterwasassessed.Theoptimumremovalconditionswerestudied.Theresultsshowedthatunderthefollowingconditions:temperatureof10～30℃,pH=2,Cr6+concentration100mg/L,reacting10mi-nutesandBMbacteriatowastewaterbeing1∶200,Cr6+removalratewasover98%.Atthetemperatureof10～30℃,pH=8.5,Ni2+concentration100mg/L,reacting10minutesandBMbacteriatowastewaterbeing1∶200,Ni2+removalratewasover96%.Underthesameconditionsofactualelectroplatingwastewater,Cr6+andNi2+removalratewasbothover99%.Keywords　electroplatingwastewater;secondgenerationbacteriaofBM;chromium;nickel:(2006C13030):2009-05-03;:2009-06-29:(1985～),,,:。E-mail:[e-mail]＊,E-mail:[e-mail]　　,,、,,[1]。,,、[2]。、[3～5],[6]SR,。[7](R32)(Fh01)2。[8]、、BM,GB8978-1996。BM,,、3,、。,BM。,BM、、4、pH,,。BM。BMBM,,Cu2+、Ni2+、Cr6+、Zn2+800～1000mg/L,pH1～10。BM,BM。1　1.1　、BM,CN1557999,、、,,BM;。:、、、、、、、;、、、、。721、、PHS-3C、JJ-4A、SPJ-250W。(GB7467-87);(GB11910-89)。1.2　1.2.1　单一离子废水去除效果研究(1)、10、60、100、150200mg/L,10min、pH、1∶200(),、。(2)pH、,10min、1∶200(),pH。(3)、,pH,10min、1∶200(),10、2030℃。(4)、,pH、10min。(5)、,pH、、5、10、2030min。1.2.2　实际电镀废水处理效果研究,BM,BM。2　2.1　Cr6+、Ni2+BMCr6+、Ni2+1。Cr6+、Ni2+,100mg/LCr6+、Ni2+,Cr6+、Ni2+。、[9],Cr6+、Ni2+100mg/LBM、。,Cr6+、Ni2+100mg/L,BM、,、Cr6+、Ni2+,Cr6+、Ni2+。1　Fig.1　Effectofmetalionconcentrationonremovalefficiencyofmetalion2.2　pHCr6+、Ni2+pHCr6+2。pHCr6+,pH2Cr6+98.60%。BMCr6+,BMCr6+Cr3+[10]。3022:BM2　pHCr6+Fig.2　EffectofpHvalueonremovalefficiencyofchromiumpHNi2+3。,pH7,pHNi2+10%;pH7～8,Ni2+;pH8,Ni2+80%,100mg/LNi2+。,Ni2+95%,15%,pH≥8、BM,Ni2+,98%。3　pHNi2+Fig.3　EffectofpHvalueonremovalefficiencyofnickel2.3　Cr6+、Ni2+4。10～30℃,BMCr6+、Ni2+,Cr6+98%,Ni2+90%。BMCr6+、Ni2+,BMCr6+、Ni2+。2.4　5。BMCr6+、Ni2+,4　Cr6+Ni2+Fig.4　EffectoftemperatureonremovalefficiencyofCr6+andNi2+()1∶400、1∶200、1∶100Cr6+、Ni2+,99%、94%。BM,,[10,11],。5　Cr6+Ni2+Fig.5　EffectofratioofbacteriatowastewateronremovalefficiencyofCr6+andNi2+2.5　BMCr6+、Ni2+6。5min,BMCr6+、Ni2+62.04%88.79%,10～30min,Cr6+、Ni2+98%96%,10、2030min,BMCr6+、Ni2+,,BMCr6+、Ni2+。2.6　BM,BM:1∶200、10min、pH2、pH8.5。,BM,Cu2+、Ni2+、Cr6+、30346　Cr6+Ni2+Fig.6　EffectofreactiontimeonremovalefficiencyofCr6+andNi2+Zn2+、COD24.04、75.6、42.67、11.99549.3mg/L。BM7。7　BMFig.7　EffectofBMbacteriaonactualelectroplatingwastewaterCu2+、Ni2+、Cr6+、Zn2+COD0.26、0.06、0.06、0.008301.01mg/L,BMCu2+、Ni2+、Cr6+、Zn2+COD98.92%、99.92%、99.86%、99.93%45.20%。3　　(1),1∶200,Cr6+Ni2+99%94%。BM,。(2)BM。5min,Cr6+、Ni2+62.04%、88.79%;10min98%96%。(3)BM,BM。10～30℃,BMCr6+Ni2+,Cr6+Ni2+98%90%。(4)pHBM,BMpH,pH,Ni2+,BMBM,pH,BMNi2+15%。(5)BMBMNi2+Cr6+,Cu2+Zn2+COD。[1].21.,2000,22(3):1～2[2]JianlongWang,CanChen.Biosorbentsforheavymetalsre-movalandtheirfuture.BiotechnologyAdvances,2009,27(2):195～226[3]GavrilescuM.Removalofheavymetalsfromtheenviron-mentbybiosorption.EngineeringinLifeSciences,2004,4(3):219～232[4]WongJ.P.K.,WongY.S.,TamN.F.Y.Nickelbiosorp-tionbytwochlorellaspecies.BioresourceTechnology,2000,73:133～137[5]FourestE.,RouxJ.C.Heavymetalbiosorptionbyfungalmycelialby-products:MechanismsandinfluenceofpH.ApplliedMicrobiol.Biotechnol.,1992,37:399～403[6]..,2002,24(2):35～37[7],,,..,2005,25(2):245～248[8],,..,,CN200410021771.5.2004-12-29[9],,..,2007,39(3):21～24[10],,,..,1996,22(3):165～167[11],.SR4Ni2+.,1995,14(12):10～12304