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）的采購是來自印度孟買的精細(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

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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簡(jiǎn)介：中文中文6500字,4500單詞，單詞，22萬英文字符萬英文字符出處出處MARQUESG,RENCORETJ,GUTIéRREZA,ETALEVALUATIONOFTHECHEMICALCOMPOSITIONOFDIFFERENTNONWOODYPLANTFIBERSUSEDFORPULPANDPAPERMANUFACTURINGJOPENAGRICULTUREJOURNAL,2010,493101本科生畢業(yè)設(shè)計(jì)（論文）外文翻譯學(xué)院專業(yè)導(dǎo)師學(xué)生學(xué)號(hào)謂樹脂沉積的來源。樹脂沉積在制漿和造紙工業(yè)中是一個(gè)嚴(yán)重的問題，它會(huì)導(dǎo)致生產(chǎn)水平降低，設(shè)備的維護(hù)費(fèi)用和操作成本升高，成品缺陷率增加，從而降低了產(chǎn)品質(zhì)量和生產(chǎn)效益6。為了最大限度地提高紙漿造紙工業(yè)中非木材植物纖維的開發(fā)利用，有必要對(duì)其化學(xué)組成了解得更為全面。大多數(shù)研究致力于木質(zhì)材料的化學(xué)表征，而對(duì)非木質(zhì)纖維的研究相對(duì)稀少。在此背景下，這項(xiàng)工作的主要目的是修改和評(píng)價(jià)用于紙漿造紙的不同非木質(zhì)植物纖維的化學(xué)組成，這將有助于提高他們?cè)诠I(yè)生產(chǎn)中作為原材料的利用率。2分析方法21樣本本研究選取的樣本是亞麻LINUMUSITATISSIMUM，大麻CANNABISSATIVA，紅麻HIBISCUSCANNABINUS和黃麻CORCHORUSCAPSULARIS的韌皮部纖維；劍麻AGAVESISALANA，蕉麻MUSATEXTILIS，卡羅阿ANANASERECTIFOLIUS和蘆竹ARUNDODONAX的葉纖維。22化學(xué)分析為了估算半纖維素和克拉松木素含量，研磨樣品在索氏提取器中用丙酮浸泡8小時(shí)，隨后用熱水（3小時(shí)，100℃下）萃取。丙酮萃取液蒸發(fā)至干，再懸浮于氯仿做脂溶性成分的色譜分析。克拉松木素可能存在于萃取前材料的硫酸水解殘余物中。經(jīng)過過濾除去不溶木質(zhì)素后，酸溶木質(zhì)素含量可測(cè)出，通過分光光度法測(cè)定波長為205NM。根據(jù)TAPPIT222OM88和T249OM85中分別規(guī)定的，多糖水解得的中性糖作為醛糖醇乙酸酯進(jìn)行氣相色譜分析9。在575℃下反應(yīng)6小時(shí)后的殘余物為灰分含量。23脂類分析親脂性提取物因其結(jié)構(gòu)多樣性和分子質(zhì)量范圍廣泛，為化學(xué)分析帶來了困難。較短長度的高溫毛細(xì)管柱5M的薄膜被用于快速鑒定親油性木材抽提物的量，親油性木材抽提物之前沒有進(jìn)行衍生作用也沒有分餾10，可較好地分析出高分子量脂類（如蠟，甾醇酯和甘油三酯。這種方法能在相同的色譜分析中溶出和分離具有大范圍的分子量的化合物（從脂肪酸和樹脂酸到甾醇酯和甘油三酯）。對(duì)于氣相色譜質(zhì)譜法，可使用中等長度高溫毛細(xì)管柱12M10。當(dāng)所要求的一些化合物需要更精確的表征，所述提取物要通過固相萃取（SPE）的程序進(jìn)行分級(jí)分離10，

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