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简介：Thecatalyticwetairoxidation（CWAO）ofHacidandphenolwasinvestigatedinthepresenceofCuorFedopedCeO2solidsolutions,whichwereobtainedbysol-gelmethod.TheexperimentresultsshowedthattheincorporationofCuorFeintothefluoritelatticeofCeO2stronglyenhancedtheoxidationactivityofthecatalyst.At90℃and0.1MPa,Hacidconversionwas70%fortheCe0.9Fe0.1O2-δand60%fortheCe0.9Cu0.1O2-δcatalyst.Forphenolremoval,theconversionwas70%fortheCe0.9Cu0.1O2-δcatalyst,whilefortheCe0.9Fe0.1O2-δtheconversionwas30%.TheresultsindicatedthatCe0.9Cu0.1O2-δwassuitableforthetreatmentoforganicwastewaterswhileCe0.9Fe0.1O2-δwassuitablefortheremovalofHacid.The70%phenolremovalratewithCe0.9Cu0.1O2-δcatalystwasmarkedlyincreasedto90%withCe0.8Cu0.2O2-δcatalyst.However,thephenolremovalreducedfrom30%to15%withFecontentincreasingfrom10%to20%.FortheHacid,theincreaseofthecontentofCuorFetendedtoobviouslyincreasetheoriginalreactionratewhiletheCODremovalchangedlittle.

简介：Thetreatmentoftheindustrialwastewater,inwhichtheconcentrationoftriethylamine(TEN)andCODcrwasaround3450mg/Land22400mg/Lrespectively,wasstudiedbyadsorptionofmacroporousresins,ResultsdemonstratethatthepolymericadsorbentCHA-111hasexcellenteffectontheadsorptionanddesorptionofTEN.TheconcentrationofTENintheeffluentislessthan30mg/L,andtheremovalefficiencyofTENandtotalCODcrexceed99%and95%respectively.TheaccumulationandresourcereuseofTENcanberealizedinthisprocess.

简介：凝结絮凝过程在diosgenin废水的预告的处理被使用。当主要凝结剂和cationicpolyacrylamide(CPAM)被用作凝结剂帮助，Polyferric硫酸盐被使用。用罐测试过程，主要操作参数的影响，例如在凝结的自河pH和凝结剂剂量，性能被调查。有效pH被发现在6.58.0的范围，凝结剂剂量是100mg/L。在最佳的条件下面，15%化学的氧需求(货到付款)移动效率被完成，剩余混浊是不到20NTU。CPAM的存在实质地在25mg/L的范围与适当CPAM剂量支持了剩余混浊的减小。

简介：Systematicstudiesonthetreatmentandreuseoftheacidindustrialwatewatercontainingsodium2-Naphthylsulfonate(β-salt)from2-NaphthanolproductionprocessbyND-910resin(madebyself)isreportedinthispaper.Undertheoperationconditionsofinitialβ-saltconcentrationof10000-25000mg/LandinitialCODCrof20000-40000mg/L,theremovalratesofSodium2-NaphthylsulfonateandCODCrareover95%andover89%,respectively.Theeffluentcanbedischargeddirectlyafterbiologicaldegradation.TheworkingsorptioncapacityofND-910Resinforβ-saltisover230g/kg.Analkali-waterwashprocedureisutilizedtoregenerateresinandthereclaimingrateofβ-saltisover98%.

简介：Thelimestone-gypsumfluegasdesulfurization(FGD)processhasbecomethemostwidespreadprocessintheworldforsulfurremoval.Theswirl-et-absorbingwetlimestone-gypsumsinteringFGDtechnologywasdevelopedforsinteringfluegasdesulfurization,andthisprocessproducesvolumesofwastewaterwithvariouscontaminantsthatrequirestreatmentbeforedisposalorreuse.Inthisstudy,thewastewaterqualityfromthreedifferentsinteringFGDsystemsatBaosteelGroupwasinvestigatedandcomparedwithwastewaterfrompowerplantFGD.AtreatmentprocesswasproposedwhichissuitableforsinteringFGDwastewater.Aftertreatmentwithaneutralization,coagulationandsedimentationprocess,heavymetalsinthesinteringFGDwastewaterwerereducedtoalevelmeetingtherelevantemissionstandards,butthepHandammoniaconcentrationweretoohigh,andafurthertreatmentprocesswasneeded.DuetocertainsimilaritiesandcomplementaritiesbetweensinteringFGDwastewaterandcokingwastewater,itisentirelyfeasibletomixthepretreatedsinteringFGDwastewaterintoabiologicalcokingwastewatertreatmentsystem.ThisstudyindicatesthatitisentirelyfeasibletomixpretreatedsinteringFGDwastewaterintothebiologicaltreatmentsystemsusedforcokingwastewaterfromtheironandsteelindustries.

简介：4,4'-diaminostilbene-2,2'-disulfonicacid(DSDacid)manufacturingwastewaterwastreatedbyamacroporousresininafixed-bedcolumn.Theresultsshowedthatthismethodwassuitableforremovalofchemicaloxygendemands(COD)andcolorAbout91%CODand99.5%colorremovalwereobtainedundertheoptimumadsorptionconditions,i.e.temperature20℃,flowrate1bedvolume/hour(BV/hr)andpH1-2.Theresinwasefficientlyregeneratedwithaqueoussodiumhydroxideandwater.Furthermore,65.5%of4,4'-dinitrostilbene-2,2'-disulfonicacid(DNS)couldberecoveredfromwastewaterforpossiblerecyclingtothemanufacturingprocess.Theadsorptioncapacityofresinremainedconstantduringtherepetitionprocessofadsorptionanddesorption.

简介：Inthispaper,thetwoeffluentsfromPBA(3-phenoxy-benzaldehyde)productionprocessweretreatedbypolymericadsorbentCHA-111.PBAorPBC(3-phenoxy-benzoicacid)wasrecoveredfromthewastewaterintheprocessofneutralization.Asasecondarytreatmentmethod,adsorptionwithCHA-111showedbetterefficiencythanphotocatolyticdecompositionandsolventextraction.Theoptimaltechnologicalparameterswere:adsorption:currentvelocity:2.0BV/hr(bedvolumeperhour),roomtemperature;desorption:currentvelocity:2.0BV/hr(bedvolumeperhour),roomtemperature;desorption:currentvelocity:1.0BV/hr,80℃,8%sodiumhydroxideaqueoussolutions.Inconclusion,99.9%CODintheneutralizingwastewaterand98.4%CODinthehydrolysiswastewaterareremovedsuccessfully.

简介：Wastewaterfromproductionprocessof2,3-acidwastreatedbyadsorptionusingmacroporousresinNDA-708.Afteronlyone-steptreatmentbyresinadsorption,removalefficiencyofthreekindsofnaphthalenechemicalswasabove99%;removaleficiencyofCODcrwasabove96%.Underproperoperatingcondition,desorptionefficiencywasaround100%.Therunningrecordsoftheindustrialfacilityshowedthatthenaphthlenechemicalsindesorptioneffluentcouldbereusedwithoutobviousinfluenceonthequalityoftheproduct.

简介：Thepowderedactivatedcarbontreatment(PACT)processhasbeenwidelyusedinmanyindustrialfields,however,veryfewPACTprocessesarebuiltforpetrochemicalwastewatertreatmentinChina.AnindustrialPACTunitlaunchedinapetrochemicalplantwasintroducedandevaluatedfromboththepracticeandmechanismstudy.Practically,thePACTprocessshowedexcellentcapabilityinpollutantsremoval,shockresistance,toxicitytolerance,andtheCODandammonium-NineffluentofPACTunitassistedbyPACwasequalto15.5mg/Land0.7mg/LlowerthanthatwithoutPACaddition,respectively.ThewetoxidationregenerationunitwasquiteefficientinsupplyingregeneratedPAC,and,however,thehardcalciumsulphatescaleandthehighpollutantconcentrationsolutionneededtobecarefullycontrolled.Moreover,althoughthecarbonbalanceshowedthattheadsorptioncapabilityofregeneratedPACwasnegligible,thebiologicaltestsprovedthattheregeneratedPACincreasedmicrobeactivityupto17%morethanpureactivatedsludgesystem,whichwasalmostcompatiblewiththefreshactivatedcarbon.

简介：ThewastewaterfromnaphtholAs-EproductionprocesswastreatedwithmacroporouspolymericadsorbentNDA-222.NaphtholAs-Eand2,3-acidinthewastewatercouldberemovedcompletelyandtheTotalOrganicCarbon(TOC)ofthewastewaterwasdecreasedmorethan98%from1655mg/Ltolessthan30mg/L.TheadsorbatescouldbedesorbedcompletelywithNaOHaqueoussolution.

简介：Thesolid-phasemicroextraction(SPME)combinedwithgaschromatography/massspectrometry(GC/MS)wasusedtodetermineandanalyzeorganicpollutantsincokingwastewater.Basedonthefactthatthemaincompoundsinthewastewaterwereorganics,somekeyparametersoftheSPMEwereoptimized.Themethodhasgoodlinearity(itscorrelationcoefficients>0.99)intherangedetermined,itsrelativestandarddeviations(RSD)arelessthan15%,anditsrecoveryisfrom87.9%to128.1%withthelowestquantificationlimitof5μg/L.Thismethodhasbeenusedtomeasure15organicpollutantsinwastewaterfromacertaincokingplant.Theresultsshowthatcomparedwiththeconventionalmethod,itcansaveanhourinpretreatmenttime.Itisafast,low-cost,accurate,simpleandefficientanalyticalmethodindeed.

简介：Anilineisatoxicwaterpollutantdetectedindrinkingwaterandsurfacewater,andthischemicalisharmfultobothhumanandaquaticlife.Adielectricbarrierdischarge(DBD)reactorwasdesignedinthisstudytoinvestigatethetreatmentofanilineinaqueoussolution.Dischargecharacteristicswereassessedbymeasuringvoltageandcurrentwaveforms,capturinglightemissionimages,andobtainingopticalemissionspectra.Theeffectsofseveralparameterswereanalyzed,includingtreatmentdistance,dischargepower,DBDtreatmenttime,initialpHofanilinesolutions,andadditionofsodiumcarbonateandhydrogenperoxidetothetreatment.Anilinedegradationincreasedwithincreasingdischargepower.Underthesameconditions,higherdegradationwasobtainedatatreatmentdistanceof0mmthanatothertreatmentdistances.Atadischargepowerof21.5W,84.32%ofanilinewasremovedafter10minofDBDtreatment.InitialpHsignificantlyinfluencedanilinedegradation.Addingacertaindosageofsodiumcarbonateandhydrogenperoxidetothewastewatercanacceleratethedegradationrateofaniline.PossibledegradationpathwaysofanilinebyDBDplasmaswereproposedbasedontheanalyticaldataofGC/MSandTOC.

简介：Water-insolublebagassexanthateswerepreparedbyxanthationofalkalifiedcellulosesbytreatingbagassewithchromiumhydroxidereactioneffluent.TheremovelofnickelfrombothtestsolutionsandelectroplatingindustrialwastewatersampleswithBXwasinvestigated.TheprocesswasstudiedtakingintoaccountsuchparametersaspHofwater,precipitationtime,xanthatedosageandstoragetimeofBX.Theseproductswrerfoundtobehighlyefficientinremovingnickel.Theresidualconcentrationofnickelaftertreatmentcanbereducedtoavalueoftheordorof0.01mg·l^-1.

简介：在在废水处理过程的雌激素的活动和DOC/UV260比率之间的关联被调查为雌激素的物质的存在建议简单、可靠、全面的指示物。与这相反，当象你屏幕，受体绑定和记者基因表达式试金那样的短期的生物鉴定被用于在废水样品检测雌激素的活动时，他们要求很长时间，至少一些天。贡献雌激素的活动的主要因素被发现是17β-estradiol(E2)和雌素酉同(E1)。在DOC/UV260比率和在活性污泥过程的自河的雌激素(E1和E2)的集中之间的Agood关系被发现：当DOC/UV260ratio增加了，当E1集中减少了时，E2集中增加了。相对雌激素的活动andDOC/UV260比率显示出好关联(R~2=0.84)为除了在污水处理工厂的ozonized样品的所有污水样品。这研究证明雌激素的混合物是难的被常规生物过程使矿物化。先进氧化过程被要求进一步在第二等的自河移开雌激素的物质。由文档和UV260的分析，在废水的雌激素的活动能很快被估计。

简介：ThetreatmentofsalicylicacidmanufacturingwastewaterbyNDA-100resinwasinvestigated.ThesorptionintensityofphenolwasfoundtobestronglydependentonpHoftheaqueousphase.EquilibriumadsorptiondatafittobothLangmuirandFreundlichmodels.ThecolumnadsorptionshowedthatthisprocesswassuitableforthetreatmentofsalicylicacidmanufacturingwastewaterAbout99.9%CODcrremovalwasobtainedundertheoptimaloperatingconditions.Theresincouldbecompletelyregeneratedwith1BV8%(w/w)NaOH+2BVH2O,therecoveryof98.9%ofthesubstancewasreached.Thisprocessmakesitpossibletorecoverthevaluablematerialfromthewastewaterandtoimprovetheeffluentwaterquality.

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