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    • 簡(jiǎn)介:OVERVIEWARTICLEANALYSISOFBUILDINGENVIRONMENTASSESSMENTFRAMEWORKSANDTHEIRIMPLICATIONSFORSUSTAINABILITYINDICATORSYUYAKAJIKAWATOSHIHIROINOUETHONGNGEEGOHRECEIVED28JUNE2010/ACCEPTED25MARCH2011/PUBLISHEDONLINE23APRIL2011?INTEGRATEDRESEARCHSYSTEMFORSUSTAINABILITYSCIENCE,UNITEDNATIONSUNIVERSITY,ANDSPRINGER2011ABSTRACTGREENCONSTRUCTIONISGAININGINCREASINGATTENTIONINTHEGLOBALCONTEXTHOWEVER,THECONSTRUCTIONOFSUSTAINABLEGREENBUILDINGSANDENVIRONMENTSINVOLVESDIFFERENTTOOLSANDSYSTEMSANDDIVERSEPERSPECTIVESTHEREFORE,THEDEVELOPMENTOFENVIRONMENTALASSESSMENTTOOLSISANIMPORTANTTASKFORMANAGINGGREENHOUSINGANDGREENBUILDINGPROJECTSINTHISPAPER,WEDISCUSSTHEBENEFITS,LIMITATIONS,ANDFUTUREDIRECTIONSOFTHEASSESSMENTFRAMEWORKTHEREAREFOURCHARACTERISTICSOFBUILDINGENVIRONMENTALASSESSMENT,IE,COMPREHENSIVENESS,DESIGNGUIDELINE,SIGNALING,ANDCOMMUNICATIONTOOLS,WHICHAFFORDBOTHBENEFITSANDLIMITATIONSWEILLUSTRATETHEROLEOFTHEASSESSMENTFRAMEWORKASAHUBPROMOTINGINTEGRATIONOFDIVERSEKNOWLEDGE,ASADESIGNGUIDELINEENCOURAGINGBETTERDESIGNANDACTION,ASSIGNALINGENVIRONMENTALLYFRIENDLYDESIGNANDACTION,ANDASACOMMUNICATIONTOOLONTHEOTHERHAND,THEREARELIMITATIONS,SUCHASTHEUSEOFAMIXTUREOFQUANTITATIVEANDQUALITATIVEMEASURES,AMBIGUITYOFWEIGHING,LACKOFFINANCIALEVALUATION,ANDLACKOFINVOLVEMENTOFDIVERSEDISCIPLINESANDSTAKEHOLDERSTODEVELOPANEFFECTIVEASSESSMENTFRAMEWORK,THEFOLLOWINGTHREEFACTORSMUSTBECONSIDEREDKNOWLEDGE,POWER,ANDIMPLEMENTATIONWEPROPOSETHATKNOWLEDGEINNOVATION,ACREDIBLEAPPROACHFORASALIENTSOLUTION,ANDCOLLECTIVEACTIONREPRESENTTHEFUTURECHALLENGESOFTHEASSESSMENTFRAMEWORKKEYWORDSSUSTAINABILITYSCIENCE?INDICATORS?KNOWLEDGEINNOVATION?GREENBUILDING?SUSTAINABLECONSTRUCTIONINTRODUCTIONSUSTAINABILITYINDICATORSHAVEBEENPROPOSEDANDPUBLISHEDAROUNDTHEWORLD,ANDTHEREARE894ENTRIESREGISTEREDINTHEDATABASEOFTHECOMPENDIUMOFSUSTAINABLEDEVELOPMENTINDICATORINITIATIVESIISD2010THISWIDEPOPULARITYREFLECTSTHEINCREASINGCONCERNABOUTINDICATORSALTHOUGHCONCERNISALSOCENTEREDONTHEAMBIGUITYOFTHETERMSUSEDINSUSTAINABILITYASSESSMENT,ANDTHEPLURALITYOFPURPOSEINCHARACTERIZINGANDMEASURINGSUSTAINABLEDEVELOPMENTASWELLASTHECONFUSIONOFDATA,ANDMETHODSOFMEASUREMENTPARRISANDKATES2003SUSTAINABILITYINDICATORSAREDEVELOPEDTOREPRESENTWHATISTOBESUSTAINED,WHATISTOBEDEVELOPED,ANDFORHOWLONGPARRISANDKATES2003THESEINDICATORSHAVEEDITEDBYKEISUKEHANAKI,UNIVERSITYOFTOKYO,JAPANYKAJIKAWAWHILEITISESPECIALLYDIFFICULTFORSUCHANAPPROACHTOCOMPAREALTERNATIVEOPTIONSWITHANQUANTITATIVESCALETHEREISATRADEOFFAMONGOPTIONSEXPERTASSESSINGSYSTEMSAREALSOAVAILABLE,BUTTRAINEDASSESSORSARENOTSATISFIEDWITHTHESESYSTEMSPREASSESSMENTTOOLSAREUSEFULINCLARIFYINGTHEOBJECTIVESOFBUILDINGOWNERSATTHEEARLYDESIGNSTAGEANDINSETTINGDESIREDRATINGSASSESSEDINDEXESAREAWARDEDINEACHAREA,EG,ENERGYSAVINGORSECURITY,ACCORDINGTOTHEIRPERFORMANCEMOSTBEAMETHODSPROVIDEQUANTITATIVEDATAPERFORMANCEINDICATORSTOSUPPORTDECISIONMAKINGANDDETERMINETHEPERFORMANCELEVELOFBUILDINGS’RATINGSLABELINGTYPICALLYTAKESTHEFORMOFASINGULAR,EASILYRECOGNIZABLEDESIGNATION,EG,‘GOLD’OR‘EXCELLENT’DIFFERENTTYPESOFBUILDINGSNEEDTOBEASSESSED,FOREXAMPLE,OFFICEBUILDINGS,RESIDENTIALBUILDINGSSINGLEFAMILYORMULTIUNIT,FACTORIES,SCHOOLS,HOSPITALBUILDINGS,COMMERCIALBUILDINGSANDOTHERTYPESOFBUILDINGSDIFFERENTTYPESOFBUILDINGSHAVEDIFFERENTTENDENCIESINENERGYUSEANDARETHEREFOREASSESSEDWITHDIFFERENTBENCHMARKSBEAMETHODSCANEVALUATETHESEDIFFERENTTYPESOFBUILDINGSNEWBUILDINGSANDEXISTINGBUILDINGSAREASSESSEDDIFFERENTLYHOWEVER,THEUSEFULNESSOFTHEENVIRONMENTALBUILDINGASSESSMENTMETHODINTHISRESPECTISDOUBTFULBECAUSETHEREMEDIALWORKNEEDEDTOMAKEACOMPLETEDBUILDINGCOMPLYMAYBETOOEXTENSIVE,COSTLYANDTIMECONSUMINGCRAWLEYANDAHO1999FOREXAMPLE,REPLACINGANEXISTINGVENTILATIONSYSTEMBYINSTALLINGMOREWINDOWSTOALLOWFORNATURALVENTILATIONANDDAYLIGHTMAYBEIMPRACTICABLE,DIFFICULT,OREXPENSIVETOFACILITATEENVIRONMENTALASSESSMENTMETHODSHAVEBEENAPPLIEDPREDOMINANTLYTONEWCONSTRUCTION,BUTWHILEREFURBISHMENTANDMAINTENANCEOFEXISTINGBUILDINGSAREALSOANIMPORTANTPARTOFASUSTAINABLEFUTUREDING2008,EFFORTINTHISAREAISNOTYETSUFFICIENTINTHISPAPER,THEFOLLOWINGFOURMAJORBEATOOLSAREEXPLAINEDINDETAILSUSTAINSCI20116233–246235123
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    • 簡(jiǎn)介:BASEFLOWCONTRIBUTIONTONITRATENITROGENEXPORTFROMALARGE,AGRICULTURALWATERSHED,USAKEITHSCHILLINGA,,YOUKUANZHANGBAIOWAGEOLOGICALSURVEY,109TROWBRIDGEHALL,IOWACITY,IA522421319,USABDEPARTMENTOFGEOSCIENCE/IIHRHYDROSCIENCEANDENGINEERING,UNIVERSITYOFIOWA,IOWACITY,IA52242,USARECEIVED10NOVEMBER2003REVISED12MARCH2004ACCEPTED19MARCH2004ABSTRACTNITRATENITROGENEXPORTFROMTHERACCOONRIVERWATERSHEDINWESTCENTRALIOWAISAMONGTHEHIGHESTINTHEUNITEDSTATEANDCONTRIBUTESTOIMPAIRMENTOFDOWNSTREAMWATERQUALITYWEEXAMINEDARARELONGTERMRECORDOFSTREAMFLOWANDNITRATECONCENTRATIONDATA1972–2000TOEVALUATEANNUALANDSEASONALPATTERNSOFNITRATELOSSESINSTREAMFLOWANDBASEFLOWFROMTHERACCOONRIVERCOMBININGHYDROGRAPHSEPARATIONWITHALOADESTIMATIONPROGRAM,WEESTIMATEDTHATBASEFLOWCONTRIBUTESAPPROXIMATELYTWOTHIRDS173KG/HAOFTHEMEANANNUALNITRATEEXPORT261KG/HABASEFLOWTRANSPORTWASGREATESTINSPRINGANDLATEFALLWHENBASEFLOWCONTRIBUTEDMORETHAN80OFTHETOTALEXPORTHEREINWEPROPOSEA‘BASEFLOWENRICHMENTRATIO’BERTODESCRIBETHERELATIONOFBASEFLOWWATERWITHBASEFLOWNITRATELOADSTHELONGTERMRATIOOF123FORTHERACCOONRIVERSUGGESTSPREFERENTIALLEACHINGOFNITRATETOBASEFLOWSEASONALPATTERNSOFTHEBERIDENTIFIEDTHESTRONGLINKBETWEENTHEBASEFLOWNITRATELOADSANDSEASONALCROPNITROGENREQUIREMENTSSTUDYRESULTSDEMONSTRATETHEUTILITYOFASSESSINGTHEBASEFLOWCONTRIBUTIONTONITRATELOADSTOIDENTIFYAPPROPRIATECONTROLSTRATEGIESFORREDUCINGBASEFLOWDELIVERYOFNITRATEQ2004ELSEVIERBVALLRIGHTSRESERVEDKEYWORDSNITRATENITROGENSTREAMDISCHARGEBASEFLOWCHEMICALLOADSHYDROGRAPHAGRICULTURALHYDROLOGY1INTRODUCTIONEXPORTOFNITRATENITROGENNITRATEFROMTHEMIDWESTERNREGIONOFTHEUNITEDSTATESISRECEIVINGINCREASINGATTENTIONDUETOCONCERNSREGARDINGEXCESSIVENUTRIENTENRICHMENTANDEUTROPHICATIONINSTREAMSDODDSANDWELCH,2000USEPA,2000ANDDEVELOPMENTOFHYPOXICCONDITIONSINTHEGULFOFMEXICORABALAISETAL,1996GOOLSBYETAL,1999NITRATEEXPORTFROMTHESTATEOFIOWA,LOCATEDINTHEMIDDLEOFTHEUSCORNBELTREGION,HASBEENIDENTIFIEDASAMAJORCONTRIBUTORTOMISSISSIPPIRIVERPOLLUTANTLOADSAVERAGEANNUALEXPORTOFNITRATEFROMSURFACEWATERINIOWAWASESTIMATEDTORANGEFROMAPPROXIMATELY204,000TO222,000MG,ORABOUT25OFTHENITRATETHATTHEMISSISSIPPIRIVERDELIVERSTOTHEGULFOFMEXICO,DESPITEIOWAOCCUPYINGLESSTHAN5OFITSDRAINAGEBASINSCHILLINGANDLIBRA,2000NITRATEEXPORTFROMTHERACCOONRIVERWATERSHEDINWESTCENTRALIOWAISAMONGTHEHIGHESTINTHEINTERIORUSAVERAGEANNUALNITRATEYIELDFROMTHERACCOONRIVERWATERSHEDWASESTIMATEDTOBE261KG/HA/YEAR,WHICHRANKEDASTHEHIGHESTLOSSOFNITRATEOUTOF4200221694/SEEFRONTMATTERQ2004ELSEVIERBVALLRIGHTSRESERVEDDOI101016/JJHYDROL200403010JOURNALOFHYDROLOGY2952004305–316WWWELSEVIERCOM/LOCATE/JHYDROLCORRESPONDINGAUTHORFAXT13193352754EMAILADDRESSKSCHILLINGIGSBUIOWAEDUKSCHILLINGSEPARATEDINTOBASEFLOWANDSTORMFLOWCOMPONENTSUSINGANAUTOMATEDHYDROGRAPHSEPARATIONPROGRAMSLOTOANDCROUSE,1996ALOCALMINIMUMMETHODWASUTILIZED,WHICHESSENTIALLYCONNECTSTHELOWESTPOINTSONTHEHYDROGRAPHANDPROVIDESESTIMATESOFDAILYBASEFLOWDISCHARGEBETWEENLOCALMINIMUMSBYLINEARINTERPOLATIONSLOTOANDCROUSE,1996DAILYRUNOFFDISCHARGEWASDETERMINEDATEACHSTREAMGAUGESITEBYSUBTRACTINGDAILYBASEFLOWDISCHARGEFROMDAILYSTREAMFLOWDISCHARGEFORPURPOSESOFTHISSTUDY,RUNOFFWASDEFINEDASCONTRIBUTIONSFROMOVERLANDFLOWANDSUBSURFACESTORMFLOWORINTERFLOWFREEZEANDCHERRY,1979WATERQUALITYDATAFORTHERACCOONRIVERWEREOBTAINEDFROMTHEDESMOINESRIVERWATERQUALITYNETWORKOPERATEDBYIOWASTATEUNIVERSITY’SDEPARTMENTOFCIVIL,CONSTRUCTIONANDENVIRONMENTALENGINEERINGANDSUPPORTEDTHROUGHTHEROCKISLANDDISTRICTOFTHEARMYCORPSOFENGINEERSLUTZANDESSER,2002ATOTALOF981GRABSAMPLES,CORRESPONDINGTOAWEEKLYORBIMONTHLYFREQUENCY,WERECOLLECTEDFROMTHERACCOONRIVERFROM1972TO2000ANDANALYZEDBYTHEANALYTICALSERVICESLABORATORYATIOWASTATEUNIVERSITYALLCONCENTRATIONSAREREPORTEDASNITROGENWITHANANALYTICALDETECTIONLIMITOF001MG/LNITRATECOMPRISESAPPROXIMATELY81OFTHETOTALNITROGENEXPORTEDFROMTHERACCOONRIVERGOOLSBYETAL,1999NITRATEDATAFORTHE1972–2000PERIODWERETESTEDFORTEMPORALTRENDSUSINGNONPARAMETRICSEASONALKENDALLTAUSTATISTICSWITHWQSTATPLUSVERSION156NOTRENDSWERESIGNIFICANTATP,005LACKOFTEMPORALTRENDSINNITRATECONCENTRATIONSANDSTREAMFLOWVARIABLESFORTHE1972–2000PERIODINDICATEDTHATTHEENTIREDATASETCOULDBEGROUPEDTOGETHERFORANALYSESNITRATECONCENTRATIONSINSURFACEWATERSAMPLESEXHIBITEDAWIDERANGEOFVALUES,RANGINGFROM170MG/LIN1982AND1990TOSEVERALOCCASIONSLESSTHAN005MG/LIN1977FIG2OFTHE981SAMPLESCOLLECTEDFORNITRATEANALYSISOVERTHE28YEARPERIOD,252,OR26OFTHETOTAL,WEREGREATERTHANTHEMAXIMUMCONTAMINANTLEVELOF10MG/LFORUSDRINKINGWATERSUPPLIESFIG2THEMEANOFALLNITRATEANALYSESWAS68MG/LMOREINFORMATIONRELATEDTONITRATECONCENTRATIONPATTERNSINTHERACCOONRIVERCANBEFOUNDINSCHILLINGANDLUTZ2004FIG1LOCATIONOFRACCOONRIVERWATERSHEDPRECIPITATIONSTATIONSLOCATEDINGUTHRIECENTERANDSTORMLAKETHEUSGEOLOGICALSURVEYGAUGINGSTATIONLOCATEDATVANMETERKSCHILLING,YKZHANG/JOURNALOFHYDROLOGY2952004305–316307
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    • 簡(jiǎn)介:ARSENICINTHEENVIRONMENTBIOLOGYANDCHEMISTRYPROSUNBHATTACHARYAA,?,ALANHWELCHB,KENNETHGSTOLLENWERKC,MIKEJMCLAUGHLIND,JOCHENBUNDSCHUHE,GPANAULLAHFAKTHINTERNATIONALGROUNDWATERARSENICRESEARCHGROUP,DEPARTMENTOFLANDANDWATERRESOURCESENGINEERING,ROYALINSTITUTEOFTECHNOLOGYKTH,SE10044STOCKHOLM,SWEDENBNEVADAWATERSCIENCECENTER,UNITEDSTATESGEOLOGICALSURVEY,2730NDEERRUNROAD,CARSONCITY,NV89701USACUNITEDSTATESGEOLOGICALSURVEY,MS413,BOX25046,FEDERALCENTER,DENVER,CO80225,USADCSIROLANDANDWATER/UNIVERSITYOFADELAIDE,PMB2,GLENOSMOND,SA5064,AUSTRALIAEINTERNATIONALTECHNICALCOOPERATIONPROGRAMMECIMGTZ/BA,GERMANY,INSTITUTOCOSTARRICENSEDEELECTRICIDADICE,PYSA,APARTADOPOSTAL10032,1000SANJOSE,COSTARICAFCIMMYT,BANGLADESH,POBOX6057GULSHAN,DHAKA1212,BANGLADESHRECEIVED6FEBRUARY2007RECEIVEDINREVISEDFORM25FEBRUARY2007ACCEPTED27FEBRUARY2007AVAILABLEONLINE16APRIL2007ABSTRACTARSENICASDISTRIBUTIONANDTOXICOLOGYINTHEENVIRONMENTISASERIOUSISSUE,WITHMILLIONSOFINDIVIDUALSWORLDWIDEBEINGAFFECTEDBYASTOXICOSISSOURCESOFASCONTAMINATIONAREBOTHNATURALANDANTHROPOGENICANDTHESCALEOFCONTAMINATIONRANGESFROMLOCALTOREGIONALTHEREAREMANYAREASOFRESEARCHTHATAREBEINGACTIVELYPURSUEDTOADDRESSTHEASCONTAMINATIONPROBLEMTHESEINCLUDENEWMETHODSOFSCREENINGFORASINTHEFIELD,DETERMININGTHEEPIDEMIOLOGYOFASINHUMANS,ANDIDENTIFYINGTHERISKOFASUPTAKEINAGRICULTUREREMEDIATIONOFASAFFECTEDWATERSUPPLIESISIMPORTANTANDRESEARCHINCLUDESASSESSINGNATURALREMEDIATIONPOTENTIALASWELLASPHYTOREMEDIATIONANOTHERAREAOFACTIVERESEARCHISONTHEMICROBIALLYMEDIATEDBIOGEOCHEMICALINTERACTIONSOFASINTHEENVIRONMENTIN2005,ACONFERENCEWASCONVENEDTOBRINGTOGETHERSCIENTISTSINVOLVEDINMANYOFTHEDIFFERENTAREASOFASRESEARCHINTHISPAPER,WEPRESENTASYNTHESISOFTHEASISSUESINTHELIGHTOFLONGSTANDINGRESEARCHANDWITHREGARDSTOTHENEWFINDINGSPRESENTEDATTHISCONFERENCETHISCONTRIBUTIONPROVIDESABACKDROPTOTHEISSUESRAISEDATTHECONFERENCETOGETHERWITHANOVERVIEWOFCONTEMPORARYANDHISTORICALISSUESOFASCONTAMINATIONANDHEALTHIMPACTSCROWNCOPYRIGHT?2007PUBLISHEDBYELSEVIERBVALLRIGHTSRESERVEDKEYWORDSARSENICCONTAMINATIONPOLLUTIONGROUNDWATERTUBEWELLSCREENINGFIELDTESTKITHEALTHSAFEAQUIFERSAGRICULTURESOILSMININGENVIRONMENTPHYTOREMEDIATIONSORPTIONREMEDIATION1INTRODUCTION11LOCATIONANDSCALEOFPROBLEMARSENICASHASBEENDETECTEDINGROUNDWATERINSEVERALCOUNTRIESOFTHEWORLD,WITHCONCENTRATIONLEVELSEXCEEDINGTHEWHODRINKINGWATERGUIDELINEVALUEOF10ΜG/LWHO,2001ASWELLASTHENATIONALREGULATORYSTANDARDSEG50ΜG/LININDIAANDBANGLADESH,AHMEDETAL,2004MUKHERJEEETAL,2006ARSENICINGROUNDWATERISOFTENASSOCIATEDWITHGEOLOGICSOURCES,BUTINSOMELOCATIONSANTHROPOGENICINPUTSCANBEEXTREMELYIMPORTANTINGESTIONOFGEOGENICASFROMGROUNDWATERSOURCESISMANIFESTEDASCHRONICHEALTHDISORDERSINMOSTOFTHEAFFECTEDREGIONSOFTHEWORLDBGSFAX4684110775EMAILADDRESSPROSUNKTHSEPBHATTACHARYA00489697/SEEFRONTMATTERCROWNCOPYRIGHT?2007PUBLISHEDBYELSEVIERBVALLRIGHTSRESERVEDDOI101016/JSCITOTENV200702037MMAIIIISMORETOXICTHANASIIIANDASVVIZPETRICKETAL,2000,200114AGRICULTURETHEADVERSEEFFECTSOFASINGROUNDWATERUSEDFORIRRIGATIONWATERONCROPSANDAQUATICECOSYSTEMSISALSOOFMAJORCONCERNINADDITIONTOPOTENTIALHUMANHEALTHIMPACTSCAUSEDBYINGESTIONOFFOODCONTAININGAS,THEPOTENTIALFORREDUCEDCROPYIELDDUETOITSBUILDUPINTHESOILISANACTIVEAREAOFRESEARCHTHEFATEOFASINAGRICULTURALSOILSISOFTENLESSWELLSTUDIEDCOMPAREDTOGROUNDWATER,ANDINGENERALHASBEENSTUDIEDINTHECONTEXTOFASUPTAKEBYDIFFERENTPLANTSHUQETAL,2001,2006DASETAL,2004ALRMALLIETAL,2005CORRELLETAL,2006NAIDUETAL,2006CROPQUALITYANDTHEEFFECTOFASONCROPQUALITYANDYIELDISBECOMINGAMAJORWORLDWIDECONCERN,PARTICULARLYFORRICEWHICHFORMSTHESTAPLEFORMANYSOUTHASIANCOUNTRIESWHEREGROUNDWATERISWIDELYUSEDFORIRRIGATIONMEHARGANDRAHMAN,2003INARECENTSTUDYITWASREPORTEDTHATIRRIGATIONHASINCREASEDINBANGLADESHSINCE1970,WHILESINCE1980,THEAREAUNDERGROUNDWATERIRRIGATIONFORTHECULTIVATIONOFBORORICEHASINCREASEDBYALMOSTANORDEROFMAGNITUDEHARVEYETAL,2005BASEDONAVAILABLEINFORMATIONONTHEDISTRIBUTIONOFASCONCENTRATIONINGROUNDWATERBGSANDDPHE,2001ANDTHEAREAUNDERSHALLOWTUBEWELLIRRIGATIONBADC,2005,SAHA2006ESTIMATEDTHATAPPROXIMATELY1000METRICTONSOFASISCYCLEDWITHIRRIGATIONWATERDURINGTHEDRYSEASONOFEACHYEARRICEYIELDHASBEENREPORTEDTODECREASEBY10ATACONCENTRATIONOF25MG/KGASINSOILXIONGETAL,1987AGREENHOUSESTUDYBYABEDINETAL2002REVEALEDREDUCEDYIELDOFALOCALVARIETYOFRICEBR11IRRIGATEDWITHWATERHAVINGASCONCENTRATIONSINTHERANGEOF02TO8MG/LTHEACCUMULATIONOFASINRICEFIELDSOILSANDITSINTRODUCTIONINTOTHEFOODCHAINTHROUGHUPTAKEBYTHERICEPLANTISOFMAJORCONCERNDUXBURYETAL,200315ANTHROPOGENICARSENICLARGEQUANTITIESOFASARERELEASEDINTOTHEENVIRONMENTTHROUGHINDUSTRIALACTIVITIES,WHICHCANBEDISPERSEDWIDELYANDASSUCHPLAYANIMPORTANTROLEINTHECONTAMINATIONOFSOILS,WATERS,ANDAIRNRIAGU,1989JACKSANDBHATTACHARYA,1998JUILLOTETAL,1999MATSCHULLAT,2000PACYNAANDPACYNA,2001ELEVATEDCONCENTRATIONSOFASINSOILSOCCURONLYLOCALLY,BUTINAREASOFFORMERINDUSTRIALAREASITMAYCAUSEENVIRONMENTALCONCERNNRIAGU,1994SMITHETAL,1998KABATAPENDIASANDPENDIAS,2001ALTHOUGHMANYMINERALSCONTAINASCOMPOUNDS,THEANTHROPOGENICCONTRIBUTIONTOTHEENVIRONMENTINTHEPASTACCOUNTEDFOR82,000METRICTONS/YEARWORLDWIDENRIAGUANDPACYNA,1988INORGANICASCOMPOUNDSSUCHASCALCIUMARSENATE,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    • 簡(jiǎn)介:中文中文6050漢字漢字出處出處KUMARP,AGNIHOTRIR,MONDALMKCATALYTICTREATMENTOFSYNTHETICDYEWASTEWATERCODANDCOLORREDUCTIONJJOURNALOFENVIRONMENTALCHEMICALENGINEERING,2013,13440447催化法處理合成染料廢水化學(xué)需氧量及色度的去除作者PRADEEPKUMAR,RUCHIKAAGNIHOTRI,MONOJKUMARMONDAL國(guó)籍印度摘要要目前的研究集中在利用催化熱分解法預(yù)處理含有活性紅74染料的合成廢水,去除效果由COD和色度來(lái)表征。本研究中所用的催化劑包括CUSO45H2O,CUO,MGSO47H2O,F(xiàn)ECL3,CACL2和FESO47H2O。分別在不同的PH值、溫度、反應(yīng)時(shí)間、催化劑用量、染料初始濃度和催化劑種類下進(jìn)行了實(shí)驗(yàn)研究。結(jié)果表明,向含有初始濃度為100MG/L合成染料的廢水中投加4G/L的CUSO45H2O催化劑,在60±2℃及PH為11的條件下反應(yīng)90MIN,可使COD去除率達(dá)95,色度去除率為68。同時(shí)發(fā)現(xiàn)該化學(xué)反應(yīng)動(dòng)力遵循一級(jí)動(dòng)力學(xué),廢水的初始PH對(duì)沉淀過(guò)程和色度的去除等有明顯的影響。其次可以回收利用處理過(guò)的含銅廢水與新鮮的催化劑一起使用,從而降低催化劑的使用量。關(guān)鍵詞關(guān)鍵詞廢水活性紅74染料化學(xué)需氧量去除脫色材料綜合廢水樣品取自印度艾哈邁達(dá)巴德工業(yè)區(qū)的冷品牌活性紅MB染料廢水(活性紅74),其物理性質(zhì)見表1表一活性粉藍(lán)染料的物理性質(zhì)表一活性粉藍(lán)染料的物理性質(zhì)性能描述名稱活性紅74物理狀態(tài)粉狀顏色粉紅氣味無(wú)味PH范圍4565密度600800KG/M3水溶性100G/L(25℃)用蒸餾水將樣品稀釋成不同的濃度,用作催化劑和COD測(cè)定的化學(xué)試劑都是屬于分析純,五水硫酸銅(CUSO45H2O)和氧化銅(CUO)的采購(gòu)是來(lái)自印度孟買的精細(xì)化工有限公司,七水硫酸鎂(MGSO47H2O)、三氯化鐵(FECL3)、氯化鈣(CACL2)、七水硫酸亞鐵(FESO47H2O)、重鉻酸鉀(K2CR2O7)、硫酸銀(AG2SO4)、硫酸汞(HGSO4)、水合硫酸鋁(AL2SO43NH2O、鹽酸和氫氧化鈉都是來(lái)自印度的賽默飛世爾科技有限公司。用于實(shí)驗(yàn)的催化劑的物理化學(xué)性質(zhì)見表2表2催化劑的物理化學(xué)性質(zhì)催化劑的物理化學(xué)性質(zhì)催化劑外觀純度()純度的衡量酸性(PKA)密度(G/CM3)熔點(diǎn)(℃)溶解度(G/100ML)CUSO4。5H2O藍(lán)色晶體粉末98質(zhì)量分?jǐn)?shù)35–4536031502033MGSO47H2O白色結(jié)9800質(zhì)量分168150710
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    • 簡(jiǎn)介:SEEDISCUSSIONS,STATS,ANDAUTHORPROFILESFORTHISPUBLICATIONATHTTPS//WWWRESEARCHGATENET/PUBLICATION/275163673CATALYTICTREATMENTOFSYNTHETICDYEWASTEWATERCODANDCOLORREDUCTIONARTICLEINJOURNALOFENVIRONMENTALCHEMICALENGINEERINGSEPTEMBER2013DOI101016/JJECE201306008CITATION1READS303AUTHORS,INCLUDINGSOMEOFTHEAUTHORSOFTHISPUBLICATIONAREALSOWORKINGONTHESERELATEDPROJECTSPOWERPLANTCO2EMISSIONCAPTUREUSINGAMINEBASEDABSORPTIONTECHNOLOGYVIEWPROJECTMECHANOCHEMICALLYSYNTHESIZEDLEUCITEBASEDBIOACTIVEGLASSCERAMICCOMPOSITEFORDENTALVENEERINGVIEWPROJECTPRADEEPKUMARINDIANINSTITUTEOFTECHNOLOGYBANARASHIND39PUBLICATIONS369CITATIONSSEEPROFILEMONOJKUMARMONDALINDIANINSTITUTEOFTECHNOLOGYBANARASHIND59PUBLICATIONS528CITATIONSSEEPROFILEALLCONTENTFOLLOWINGTHISPAGEWASUPLOADEDBYMONOJKUMARMONDALON02SEPTEMBER2015THEUSERHASREQUESTEDENHANCEMENTOFTHEDOWNLOADEDFILEALLINTEXTREFERENCESUNDERLINEDINBLUEAREADDEDTOTHEORIGINALDOCUMENTANDARELINKEDTOPUBLICATIONSONRESEARCHGATE,LETTINGYOUACCESSANDREADTHEMIMMEDIATELYBRANDDYEWASPURCHASEDFROMALFAINDUSTRIES,AHMEDABAD,INDIATHEDYEWASDISSOLVEDINDISTILLEDWATERTOHAVEDIFFERENTCONCENTRATIONSTHECHEMICALSUSEDASCATALYSTSANDFORCODCALCULATIONWEREOFANALYTICALREAGENTGRADECUPRICSULFATEPENTAHYDRATECUSO4?5H2OANDCUPROUSOXIDECUOWEREPROCUREDFROMSDFINECHEMICALSLTD,MUMBAI,INDIA,WHEREAS,MAGNESIUMSULFATEHEPTAHYDRATEMGSO4?7H2O,FERRICCHLORIDEFECL3,CALCIUMCHLORIDECACL2,FERROUSSULFATEHEPTAHYDRATEFESO4?7H2O,POTASSIUMDICHROMATEK2CR2O7,SILVERSULFATEAG2SO4,MERCURICSULFATEHGSO4,ALUMINUMSULFATEAL2SO43?NH2O,HCLANDNAOHALLRECEIVEDFROMTHERMOFISHERSCIENTIFICINDIAPVTLTDETCTHEPHYSICOCHEMICALPROPERTIESOFCATALYSTSUSEDFOREXPERIMENTATIONAREPRESENTEDINTABLE2ANALYTICALMETHODHANNAMULTIPARAMETERPHOTOMETERMODELHI83099COD,SINGAPOREWASUSEDFORCOLORTESTFORTHESYNTHETICWASTEWATERSAMPLESCOLOROFTHESAMPLESWASREADATWAVELENGTHOF420NMINTERMSPLATINUMCOBALTUNITPCUFORCODROUTINEANALOGOUSPROCEDUREOFTITRATINGWITHFERROUSAMMONIUMSULFATEWASUSEDCONCENTRATIONWASESTIMATEDUSINGTHESTANDARDCALIBRATIONCURVEABSORBANCEVSCONCENTRATIONFTIRSPECTROSCOPYOFDYEANDRESIDUEWASDONEONFTIRSPECTROPHOTOMETERNICOLET5700THERMOELECTRONANDREADINGSWERERECORDEDINFREQUENCYORWAVENUMBERRANGINGFROM4000TO500CM?1USINGKBRPELLETEXPERIMENTALPROCEDURETHEEXPERIMENTALSTUDIESATTEMPERATURESHIGHERTHANAMBIENTTEMPERATUREWERECARRIEDOUTINA05LTHREENECKEDGLASSREACTORFIG1WASTEWATEROF100MG/LCONCENTRATIONWASGENERATED,WITHCHARACTERIZATIONGIVENINTABLE3INITIALLY,THEPHOFTHEWASTEWATERWASADJUSTEDBYADDINGHCLORNAOHSOLUTIONWHERE300MLOFSYNTHETICWASTEWATERWASFEDTOTHEREACTORCATALYSTWASADDEDASPERREQUIREMENTHEATINGMENTALWITHMAGNETICSTIRRERWASUSEDTORAISETEMPERATURETOTHEDESIREDVALUEANDTHERMOMETERFORTEMPERATUREMONITORINGFITTEDINONEOFTHENECKSTHERAISINGOFTEMPERATUREOFWASTEWATERFROMAMBIENTTO60?28CTOOKABOUT5MINTHAVERTICALWATERCOOLEDCONDENSERWASATTACHEDTOTHEMIDDLENECKOFTHEREACTORTOPREVENTANYLOSSOFVAPORTHETIMETAKENTOATTAINTHEDESIREDTEMPERATUREISTHEHEATINGTIME,THTHUS,THWASTAKENASZEROFORFURTHERHEATINGTHEEXPERIMENTALRUNSWERECONDUCTEDFOR90MINAT60?28CWHILEPERFORMINGTIMEVARIATIONEXPERIMENTTHEREACTORSAMPLES50MLWERETAKENATPERIODICINTERVALSFORTHEMEASUREMENTOFCOD,COLORANDPHTHEEFFECTSOFTHEREACTIONPARAMETERS,SUCHASPH,TEMPERATURE,TIME,CATALYSTMASSLOADING,INITIALCONCENTRATIONOFDYEANDEFFECTOFDIFFERENTCATALYSTSWERESTUDIEDRESULTSANDDISCUSSIONEFFECTOFPHCONSIDERINGTHEEXPERIMENTSPERFORMEDFORDERIVINGTHEEFFECTOFPH0INITIALPHONCODANDCOLORREDUCTIONOFSYNTHETICDYEWASTEWATER,INITIALLYTEMPERATUREWASTAKENAS60?28CFOR90MINANDCATALYSTMASSLOADINGOF2G/LWITHCUSO4ASCATALYSTTHEPHWASVARIEDDURINGTHEEXPERIMENTSINTHERANGEOF2–12AFTEREACHEXPERIMENT,APORTIONOFTHETREATEDEFFLUENTWASTAKENOUTANDFILTEREDTHECLEARLIQUIDWASSEPARATEDANDITSCODASWELLASCOLORWASMEASUREDTHERESULTSARESHOWNINFIG2ITSHOWSASLOWINCREASEINPERCENTCODREDUCTIONINITIALLYFROMPH6TO10,WHICHRISESATAFASTERRATEBETWEENPH10AND11FROMPH11TO12THEREHASBEENFALLINCODREDUCTIONCOLORREMOVEDWASESTIMATEDWITHRESPECTTOINITIALCOLORATTHATPARTICULARPHCATALYSTCUSO4SHOWSACTIVITYINPRECIPITATINGDYEATPH11WITHAMAXIMUMPERCENTCODREDUCTIONOFABOUT7333ANDCOLORREDUCTIONOF5293THEDYEINGPROCESSOFREACTIVEDYESISUSUALLYPERFORMEDATPH11–12HENCE,DYEBATHRUNOFFISRICHINALKALI16,17BUTSTRANGEBEHAVIOROFDYE’SCOLORTOWARDPHSERVESAMORECRITICALISSUE,PHOVER64ISMOREOFREDTHANPINKHENCEUNITSOFCOLORARERAISEDSIMILAR,BEHAVIORINWHICHCOLOROFDYECHANGESDURINGCHEMICALOXIDATIONHASBEENOBSERVEDFORREACTIVERED2ANDREACTIVERED418THISENHANCEDCOLORSHOWSTHEINITIATIONOFHYDROLYSISREACTIONOFDYEATTHISPHANDPERSISTENTLYRISESWITHHIGHERPHINPRESENCEOFNAOHHYDROLYSISREACTIONHASALWAYSBEENCOMPETITIVEREACTIONFORDYEINGPROCESSINREACTIVEDYES13THEFINALPHAFTERTHETREATMENTWASALSOMEASUREDANDADECREASEINPHWASTABLE1PHYSICALPROPERTIESOFREACTIVEPINKMBDYEPROPERTIESDESCRIPTIONCINAMEREACTIVERED74PHYSICALSTATEPOWDERCOLORPINKODORODORLESSPHRANGE45–65DENSITY600–800KG/M3SOLUBILITYINWATER100G/L258CFIG1PHOTOGRAPHOFCATALYTICTHERMOLYSISPROCESSTABLE2PHYSICOCHEMICALPROPERTIESOFCATALYSTSCATALYSTSUSEDAPPEARANCEPURITYBASISFORPURITYACIDITYPKADENSITYG/CM3MELTINGPOINT8CSOLUBILITYG/100MLCUSO4?5H2OBLUECRYSTALLINEPOWDERABOVE9800MASSPERCENT35–4536031502033MGSO4?7H2OWHITECRYSTALLINEPOWDER9800MASSPERCENT–168150710CUOBLACKTOBROWNPOWDER9970MASSPERCENT–63151326–FECL3PURPLEREDBYTRANSMITTEDLIGHT9860MASSPERCENT–2898306920CACL2WHITEGRANULE9849MASSPERCENT8–9215772745FESO4?7H2OBLUEGREENCRYSTALS9999MASSPERCENT3–5189864486PKUMARETAL/JOURNALOFENVIRONMENTALCHEMICALENGINEERING12013440–447441
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