超临界水氧化法处理焦化废水的研究杜琳

№.2　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Apr.2011Vol.29　　　　　　JOURNALOFSHAANXIUNIVERSITYOFSCIENCE&TECHNOLOGY　　　　　　·49·＊　:1000-5811(2011)02-0049-02杜　琳,王增长(,　030024)　:介绍了焦化废水的来源、组成以及超临界水氧化法的基本原理、特点和工艺流程,建立了超临界水氧化实验装置,其最大处理流量为1L/h,考察了超临界水氧化法对废水中COD、氨氮、氰化物、硫氰化物的处理效果,并指出了实验存在的问题与困难.:焦化废水;超临界氧化;实验装置:X703.1　　　　:A0　　,,,、.、、,、、、、、,,.(SCWO)2080Modell[1-4],.(Tc374℃,Pc22.0MPa),,,SCWO,,、,.、,,,,.　图1　超临界水氧化装置流程简图1　1.1　实验装置及流程1,φ6×2mm316L,10mL,600℃;35MPa,,1L/h.,,,,、、.1.2　实验条件30%,,4(COD、＊:2010-12-23:　(1986-),,,,:29、、),1.400～550℃,24～30MPa,1～3,40s.1　(mg/L,pH)CODpH33005806.35208.92　(mg/L,pH)CODpH100150.56～92　,.图2　反应温度对降解率的影响,SCWOCOD、、、.2400～500℃、40s、30MPa、2.5.500℃,30MPa,40s,SCN90%,CN98.24%,.SCN,,460℃;CN,91%.400～500℃,COD,,COD、(2).,SCWO,COD、、、,COD,[5,6].,2.5,40s,24MPa,,COD;(24MPa),560℃,COD99%;,600℃,98%,.3　　(1)COD、、、,,《》(GB8978-1996).(2),,.(3),,.316L,,,.(4)COD,,.,,.[1]ModellM.AstudyofresolvemodelcompoundbyusingSCW[J].TappiJ,1992,75(96):195-201.[2]Sang-HwanLee.Supercriticalwateroxidationofpolychlorinatedbiphenylsbasedontheredoxreactionspromotedbynitrateandni-tratesalts[J].J.ofSupercriticalFluids,2006,39:54-62.[3].[D].:,2004.[4].[D].:,2001.[5].[J].,2007,21(6):1065-1071.[6]　.[J].,1997,48(5):639-643.(下转第55页)·50·2:,.(2),———,,,.[1]Pristine.AquariusBulkWaterTreatmentComponents[EB/OL].[2]Prominent.Productions[EB/OL][3],　.[J].,2004,5:35-38.[4]OteroM,CalvoLF,EstradaB,etal.Thermogravimetryasatechniqueforestablishingthestabilizationprogressofsludgefromwastewatertreatmentplants[J].ThemochimicaActa,2002,389(1-2):121-132.[5]JiangJQ,LioydB.Progressinthedevelopmentanduseofferrate(Ⅵ)saltasanoxidantandflocculantforwaterandwastewatertreatment[J].WaterResearch,2002,36:1397-1408.[6],,,.FLY-1[J].,2003,19(6):62-63.[7].[D].:,2004.RESEARCHONTHEINTERGRATEDEQUIPMENTFORWASTEWATERTREATMENTCAISu-ning1,DONGJi-xian2,TANShu-mei3(1.InstituteofMechanicalEngineering,ShannxiPoletechnicInstitute,Xianyang712000,China;2.SchoolofMechanicalandElectricalEngineering,ShaanxiUniversityofScience&Technology,Xi′an710021,China;3.BaojiPetroleumSteelPipeCo.,Ltd,Baoji721008,China)Abstract:Comparingwithsomekindsoftreatmentprocess,analyzingseveralintegratede-quipmentinChinaandabroad,andinordertomeetwiththeenterprise′sneeds,itispointedoutinthethesisthattheintegratedequipmentforwastewaterwhichintegratesthefloccula-tion,depositionandfiltration,hasafewadvantagessuchaslessinvestment,lessroomoccu-pied,moreefficientlytreatmentandlesscomplexityonoperation.Keywords:disposalprocess;newandefficient;integratedequipmentforwastewatertreat-ment　　(上接第50页)STUDYONTREATMENTOFTHECOKINGPLANTWASTEWATERBYSUPERCRITICALWATEROXIDATIONPROCESSDULin,WANGZeng-zhang(SchoolofEnvironmentalScienceandEngineering,TaiyuanUniversityofTechnology,Taiyuan030024,China)Abstract:Thepaperdescribesthesourceandcompositionofthecokingplantwastewater,thebasicprinciples,characteristicsandtechnologicalprocessofsupercriticalwateroxidation.Experimentaldevicebyusingsupercriticalwateroxidationwasestablished,themaximumtreatmentflowrateis1L/h.InvestigatedthetreatmenteffectofCOD,NH3-N,CN,SCNincokingplantwastewater,andtheproblemsanddifficultiesinexperimentwaspointedout.Keywords:thecokingplantwastewater;supercriticalwateroxidation(SCWO);experimen-talfacility·55·