超临界水氧化处理技术处理焦化废水的实验研究137555a9114431b90d6c85ec3a8

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122111.1000832.100124、、COD。THEEXPERIMENTALRESEARCHONCOKINGWASTEWATERTREATMENTBYSUPERCRITICALWATEROXIDATIONTECHNOLOGYLiuYanhua12ShenYingjun2YangChao1LiShiqi11.MetallurgicalandEcologicalEngineeringSchoolBeijingUniversityofScienceandTechnologyBeijing100083China2.BeijingNengtaiEnvironmentalProtectionGroupCorpBeijing100124ChinaAbstractThispaperpresentstheresearchoncokingwastewatertreatmentbyusingsupercriticalwateroxidationtechnology.Theresultshowsthattheequipmentstructureofsupercriticalwatertreatmentissimpleandsmallinsize.AftertreatmenttheammonianitrogenCODandchromainwaterisinaccordancewithorlowerthanthefirst-orderofnationaldischargestandard.Thereisnosecondarypollutionbythetechnologyanditisaratherperfectmethodtotreatcokingwastewater.Keywordssupercriticalwatercokingwastewateroxidation02005150003t。80%35%。、、。、、、、。、、、1。COD、NH3-N、、、15~20/t、5~6/t、100~150m2/tCOD、。1supercriticalwateroxidationSCWOsupercriticalfluidSCF374.3℃、22.1MPa。、、、、、。、652010628399.9%CO2N2N2O、2-4。。、。22.1SWCO1SWCO2。2.2CO2、N2、。2.31。1—2—3—4—5—6—7—8—9—10—11—12—12.41。1mg/LpHρCODρρNH3-NpH4300550750670082.5、、500~600℃20~30MPa5~40s0~4。2.61。H2O21。、、、。H2O2。10min。33.12。2mg/LpH/%ρCOD1299.72100ρ0.199.980.5ρNH3-N1298.40151500——pH8—6~93.23.2.1225MPa25s3。2COD500℃91%560℃99%500~600℃COD75201062832COD、、NH3-N。500℃90%580℃99.91%580℃。NH3-N520℃540℃2.7%560℃NH3-N600℃98.4%ρNH3-N12mg/L。COD、NH3-N600℃NH3-N15mg/L。3.2.23580℃25s3。3COD、、NH3-N3COD20MPa99%22MPa99.9%20~28MPaCOD20MPa98%24MPa99.92%24MPa20MPaNH3-N61%24MPa87%28MPaNH3-N2%NH3-N90%NH3-N。NH3-NNH3-N。NH3-N、。3.2.34580℃25MPa3。4COD、、NH3-N4COD、5s83%86%20s99%。NH3-N5s38%NH3-N40sNH3-N98.4%12mg/L。20sCOD、99%NH3-NNH3-N。3.2.45580℃25MPa25s8520106283。5COD、、NH3-N512COD、COD80%99%91%99%COD、COD、70%。NH3-N12NH3-N68%3NH3-N。3.36700mg/L1500mg/L77.61%。。。。3.4、。、、、、、、、CO2、N2。3.5pH、pHpH2.3~2.5。pH7~9。41COD99.9%NH3-N、98%。2SCWOSCWO3%SCWOSCWO。3。。。659520106283。。。1、。1、/mm/%/A119087153.1220090154.2321092155.9422094158.1526096160.7630597165.0123。200~210mm。3-XPB14。、。XPB、、pH、。1.M.2009.2.J.2007331225-27.3.M.2005.201900251002166786678-3212E-mailyangyun@baosteel.com2009-11-20櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄櫄594、pH、、。5316、。316。。6SCWO、。7、、、3~5t200100~200。1.J.20071183-86.2.P.100125792005.3.P.2007201874652008.4.J.20072161065-1071.100124292009-10-195620106283

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