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当前位置:首页 > 商业/管理/HR > 企业文化 > 臭氧氧化法预处理焦化废水的试验研究李福勤
INDUSTRIALWATER&WASTEWATERVol.42No.4Aug.,2011a,a,b,a,a,a(a.;b.,056038)、,、[1]。A/O、A2/O、SBR[2-4]。,,,,。,。,,[5]O3、O3/UV,CODCrGB8978—1996《》,。,,,(AOC)(BDOC),、。,pH,,。11.1(1)。XFZ-5B:,。:pH9,3min,30mg/L,m(BOD5)/m(CODCr)0.0680.281。,。:;;;:X784.031:A:%1009-2455(2011)04-0016-03AnexperimentalstudyoncokingwastewaterpretreatmentbyozoneoxidationLIFu-qina,NIUHong-lana,PEIHaob,ANXiao-chana,FUXian-longa,LIShuoa(a.CollegeofUrbanConstruction,b.CollegeofWaterConservancyandHydropowerEngineering,HebeiUniversityofEngineering,Handan056038,China)Abstract:Inordertoimprovethebiodegradabilityofcokingwastewater,ozoneoxidationwasusedforitspretreatment.Theresultsofthetestshowedthat:whentheinitialpHvalueofthewastewaterwas9,theozone-watercontacttimewas3min,theozonedosagewas30mg/L,them(BOD5)/m(CODCr)valueincreasedfrom0.068to0.281.Itcouldbeseenthat,theapplicationofozoneincokingwastewaterpretreatmentwasfeasibleandofbenefittothesubsequentbiochemicaltreatment.Keywords:cokingwastewater;ozone;pretreatment;biodegradability:(863)(2009AA05Z306):2011-04-28;:2011-05-30!!!!!!!!!!!!!!!!!!!!!!!!·16·1Fig.1Experimentaldevice(KI)2pHCODCrFig.2EffectofpHvalueonCODCrremoval23456789pHρ(CODCr)/(mg·L-1)2000160012008004000CODCrCODCrCODCr/%3025201510503pHFig.3EffectofpHvalueonbiodegradabilityofcokingwastewater23456789pHm(BOD5)∶m(CODCr)0.300.250.200.150.100.050,,5g/h,10~36mg/L。,50mm,1600mm,3.1L。1.2,,,pH6.8~9.2,CODCr2080mg/L,m(BOD5)/m(CODCr)0.068。1.3,,1min。2.0L/,H2SO4NaOHpH。,0.15m3/h,12mg/L,16℃。,,0.1mol/LKI。1.4CODCr:;BOD5:。22.1pHpH,,45minCODCr、BOD5,pHCODCr,2、3。2,pH,CODCr:pH,CODCr,;,CODCr,25%,CODCr1600mg/L。2:,·OH,,[6]。,(pH<4),,。·OH,,。3,pH:pH,。,,,,。2.2(pH9),CODCr、BOD5,CODCr,4、5。4,,3min,CODCr,,,,:·17·INDUSTRIALWATER&WASTEWATERVol.42No.4Aug.,20114CODCrFig.4Effectofozone-watercontacttimeonCODCrremoval102030405060/minρ(CODCr)/(mg·L-1)25002000150010005000CODCrCODCrCODCr/%3025201510505Fig.5Effectofozone-watercontacttimeonbiodegradabilityofcokingwastewater1020304050/minm(BOD5)∶m(CODCr)0.300.250.200.150.100.050,,CODCr。,,,,CODCr,CODCr。,CODCr,45min26.9%,CODCr1520mg/L,,CODCr。,CODCr,45min。5,,,。,,3min0.0680.281;,,,。,,3min。3,,3min,30mg/L,0.02/g,0.60。,,,。,,,。4(1):pH,45min,450mg/L,CODCr26.9%,m(BOD5)/m(CODCr)0.0680.293,。(2)3min,30mg/L,,m(BOD5)/m(CODCr)0.281。,。:[1],,,.[J].,2007,27(7):1094-l100.[2],,,.A/O-[J].,2009,40(4):86-87.[3],,,.[J].,1999,17(1):16-19.[4],,.A/A/O[J].,2007,(4):112-119.[5],,,.O3、O3/UV[J].,2010,26(5):100-103.[6],,,.[J].,2009,35(1):112-115.:(1966-),,,,,、,()0310-8578754()lifuqin2003@163.com。·18·
本文标题:臭氧氧化法预处理焦化废水的试验研究李福勤
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