超滤纳滤对焦化废水深度处理的试验研究闻晓今

1Tab.1WaterqualityofcokingwastewaterpH/℃200～250100～350100～500100～3003000～4000300～90020～90600～900-300～1000-50～10040～100～3400～600-30～15030～2005～10100～500-120～500-200～400-200～500---6.5～7.5-6.5～7.54.5～6.5--30～352525～3035～40/mg·L-1A/OA/A/O、、。。。、、、、、、、、、、[1]。、-。11.1、、、、、、、、。、、[2]。1。1、、、、、、、、、。[3]。1.2Ф1.5m×2.4m－11231.0636112.0630003.063000、、。A/O、-。、COD、NH3-N、。-COD≤60mg·L-1、ρ(NH3-N)≤10mg·L-1、≤1NTU、≤20mg·L-1GB50335－2002。X784TQ028.8A1000-3770(2010)[e-mail]36320103TECHNOLOGYOFWATERTREATMENTVol.36No.3Mar.,201093DOI:10.16796/j.cnki.1000-3770.2010.03.025Ф600mmФ1.5m×2.4mUOF-IV/0.002～0.1μmJML-230/5NF8040/GE。PVDF40m20.1μm0.04～0.2MPa42.5L·m-2·h-10.1MPa90%40m21nm1MPa45L·m-2·h-10.04MPa90%。1.3。、、。。。1nm200～1000。。1.4A/O-2m3·h-1、、、、、COD、NH3-N、GB50335－2002。1.51。22.1CODCOD2。2-CODCODCOD。COD30.6%COD56.8%。2CODCOD60mg·L-1-COD。2.2NH3-NNH3-N3。3A/ONH3-N20mg·L-1。NH3-NNH3-N2、CODFig.2ChangeofCODwithtimeinrawwater,UFproductionandNFproduction0510152025303540455055050100150200250300350400450COD/mgL
/d3、NH3-NFig.3ChangeofNH3-Nwithtimeinrawwater,UFproductionandNFproduction051015202530354045505502468101214161820
/d
(NH-N)/mgL1Fig.1Flowchartofwastewatertreatmentprocess
  3639410mg·L-1。NH3-N5mg·L-1NH3-N。NH3-N31.3%NH3-N75.7%。2.34。4200～300mg·L-1。Ca2+。78.5%20mg·L-1。Ca2+Mg2+。。2.45。515～120NTU1.6NTU1NTU。98.8%。。2.5--、GB50335－20022。2A/O-。3、、Ca2+、Mg2+。COD≤60mg·L-1ρ(NH3-N)≤10mg·L-11NTU20mg·L-1。-。-。[1].[M].:,1998.[2],.[M].:,2006.[3],,.[J].,2002,22(7):1-5.COD/mg·L-1ρ(NH3-N)/mg·L-1/NTU/mg·L-1GB50335－2002200～380≤60≤60≤20≤10≤10≤150≤1-200～300≤20≤4502、Tab.2Comparisonofwaterqualityofinfluentandenfluentwithwaterqualitystandards4、Fig.4Changeofhardnesswithtimeinrawwater,UFproductionandNFproduction0510152025303540455055050100150200250300350400450500550
/mgL/d0510152025303540455055-300306090120150
NTU/d5、Fig.5Changeofturbiditywithtimeinrawwater,UFproductionandNFproduction103－95EXPERIMENTALSTUDYONADVANCEDTREATINGPROCESSOFCOKINGWASTEWATERBYUFANDROWenXiaojin1,ZhouZheng1,WeiGang2,ZhangNing3（1.TangshanZhongrunCoalChemicalCo.,Ltd.,Tangshan063611,China;2.TangshanEnvironmentalMonitoringCenter,Tangshan063000,China;3.HebeiPolytechnieUniversity,Tangshan063000,China）Abstract:Despiteofbiochemicaltreatmentofcokingwastewater,theconcentrationofsuspend,organiccontaminants,andsaltarestillhigh.Advancedeffectivetreatmentprocessmustbecarriedouttoremoveorreducelargeamountofimpuritiesforthepurposeofreusingthewastewaterascirculatingcoolingwater.BasedoneffluentofA/Obiochemicaltreatment,thehigh-effectiveandpollution-freecombinedtechnologicalprocessofUF-ROwasusedtoexperimentalstudyonadvancedtreatmentsofcokingwastewater.ThevariationofCOD,NH3-N,turbidityandtotalhardnessweremeasuredandanalyzedfurtherbeforeandaftertreatment.TheresultsshowedthattheeffluentwhichhasbeentreatedbythecombinedtechnologicalprocessofUF-RO,COD≤60mg·L-1,NH3-N≤10mg·L-1,turbidity≤1NTU,totalrigidity≤20mg·L-1，Alltheitemsofwaterqualitycancompletelymeetthecodefordesignwastewaterreclamationandreuse(GB50335－2002）.Keywords：ultrafiltration;nanofiltration;cokingwastewater;advancedtreatingprocessPRELIMINARYSTUDYOFTREATMENTPROCESSOFMICRO－POLLUTEDWATERBYHYBRIDMEMBRANETECHNOLOGYShenJiangnan1,RuanHuimin1,WangHuamin2,XueYoujiang2（1.CollegeofChemicalEngineeringandMaterialsofZhejiangUniversityofTechnology,Hangzhou310014,China;2.EnvironmentalProtectionAgencyofShangyuCity,Shangyu312300,China）Abstract:Treatmentofmicro-pollutedwaterbyhybridmembranetechnologyofmicrofiltrationmembraneof0.45μm,MWCO100,80,50,30,10,5kDultrafiltrationmembraneandNF90,NF270andNF70.Theresultsshowedthatafterpretreatmentprocessofmicrofiltrationmembraneof0.45μmandMWCO5kDultrafiltrationmembrane,theremovalofCODMnandofwaterare89%and83%aftertreatmentbyNF90,respectively.Thehybridmembranetechnologycantreatthemicro-pollutedrawwatereffectively,andthewaterqualityisstableandaccordswiththestandardofthedrinkingwater.Keywords：hybridmembrane;micro-pollutedwater;ultrafiltration;nanofiltration≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤COUNTER-EMERGENCYREMOVINGPOLLUTANTSATHIGHCONCENTRATIONOFWATERSOURCEOFDRINKINGWATERBYPRE－CHLORINATIONTECHNOLOGYLiQiuxia1,SunHongwei1,LaiNengcheng2,HuangYuyuan3,LeiZexiang2（1.UrbanConstructionCollege,ZhongkaiUniversityofAgricultureandEngineering,Guangzhou510225,China；2.CollegeofEnvironmentalScienceandEngineering,ZhongkaiUniversityofAgricultureandEngineering,Guangzhou510225,China；3.CollegeofLifeSciences,ZhongkaiUniversityofAgricultureandEngineering,Guangzhou510225,China）Abstract:Counter-emergencytreatmentwascarriedout,whichtookammonia-nitrogenasthemainpollutant.Comparativestudyontheconventionalwatertreatmenttechnologywiththepre-chlorinationtechnologyastheammonia-nitrogenremovalmethodwasdone.Theresultsshowedthattheconventionalwa-tertreatmenttechnologyhadlittleeffectonremovingammonia-nitrogen,anditsmainfunctionwastoremovetheturbiditymaterialandthepartialorganicmattersfromthedestinationwater.Aftera