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簡(jiǎn)介:東北大學(xué)碩士學(xué)位論文金精礦氰化處理中含氰污水工藝技術(shù)研究姓名黃風(fēng)戰(zhàn)申請(qǐng)學(xué)位級(jí)別碩士專業(yè)礦業(yè)工程指導(dǎo)教師孫豁然楊永杰20030701東北大學(xué)碩士學(xué)位論文摘要也為其它黃金礦山提供了可借鑒的經(jīng)驗(yàn)。關(guān)鍵詞含氰污水氰化處理含金金精礦酸化處理零排放氰化物工藝流程ILL
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頁(yè)數(shù): 51
大?。?1.16(MB)
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簡(jiǎn)介:重慶大學(xué)博士學(xué)位論文清潔工藝過程及其關(guān)鍵技術(shù)的研究姓名劉英申請(qǐng)學(xué)位級(jí)別博士專業(yè)機(jī)械制造及其自動(dòng)化指導(dǎo)教師張根保20040430英文摘要ABSTRACTWITHTHEEXACERBATINGOFTHEENVIRONMENTPOLLUTIONANDRESOURCEEXHAUSTION,THEQUESTIONS,SUCHASGREENPRODUCT,ENVIRONMENTSIGNANDSUSTAINABLEDEVELOPMENTETCHAVEINCREASINGLYBECOMEFOCUSESTHATPEOPLEHAVEPAIDCLOSEARENTIONTOTHECLEANMANUFACTURINGMODEARISINGATTHEHISTORICMOMENTFORTHISREASONISBEINGACCEPTEDGRADUALLYBYTHEPEOPLE,WHICHHAVEALREADYBECOMETHELEADINGPRODUCINGMODEOFTHISCENTURYUNDERSUCHBACKGROUND,THISRESEARCHPAPERCLINGSTOTHEKEYTECHNOLOGICALPROBLEMSTHATAREAROUNDTHECLEANERPROCESSOFTHEMECHANICALPRODUCTS,ANDLAUNCHES也ETHEORETICAIRESEARCHANDDISCUSSWITHTHEVIEWSANDMETHODSSYSTEMATICALLYTHECONTENTSOFTHEPAPERARETHEIMPORTANTPARTOFPROJECT”BASICRESEARCHONTHEORYANDAPPLICATIONOFCLEANPRODUCTIONINMECHANICALMANUFACTURING”NO59775082SUPPOSEDBYTHENATIONALNATURALSCIENCEFOUNDATIONOFCHINATHEACHIEVEMENTOFTHEPAPERHASEXTREMELYIMPORTANTTHEORETICALANDAPPLYINGVALUETOIMPLEMENTCLEANERPROCESSFORTHEMECHANICALMANUFACTURINGINDUSTRYTHEMAINRESEARCHCONTENTSARCASFOLLOWSQBASINGONANALYZINGTHETHREEFOCUSQUESTIONSITEXPLAINSTHEBACKGROUNDANDTHEINEVITABILITYFORTHECLEANERPROCESSANDANALYZESTHESITUATIONBOTHATHOMEANDABROADATPRESENT,ANDALSOHASPOINTEDOUTTHETENDENCYOFDEVELOPMENTFORTHECLEANERPROCESS②WITHTHECLUEOFMECHANICALMANUFACTURINGINDUSTRY’MANUFACTURINGPROCESSITHASEXPLAINEDTHEINTENSIONOFTHECLEANERPROCESSANDPROPOSEDSIXCHARACTERISTICSANDFOURPROPERTIESTHATTHECLEANERPROCESSHASONTHEBASISOFTHIS,ITHASSETUPTHEMODELOFHIERARCHICALSTRUCTUREOFTHECLEANERPROCESS⑧ITCARRIESONDETAILEDINVESTIGATIONSANDANALYZESTOENVIRONMENTALIMPACTISSUESSUCHASRESOURCEUTILIZATIONENERGYCONSUNLE,ENVIRONMENTALPOLLUTION,ANDPOINTSOUTTHATTHEMAINDISEASEEXISTINGINTHEPROCESSARETHELOWOVERALLMATERIALUTILIZATIONFACTORANDTHEQUESTIONOFENVIRONMENTALIMPACTTHATITCAUSES,ASTOTHISITPUTSFORWARDTHECORRESPONDINGSETTLEMENTCOUNTERNLEASURC④ITHASPROPOSEDSIXMAJORPRINCIPLESOFCLEANERPROCESSDESIGNANDPROPOSEDTWOKINDSOFCLEANERPROCESSDESIGNMETHODSBASEDONTHETHEORYOF’ENVIRONMENTⅡI
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頁(yè)數(shù): 149
大?。?5.38(MB)
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簡(jiǎn)介:西安建筑科技大學(xué)碩士學(xué)位論文城市污水微絮凝纖維束過濾再生處理工藝技術(shù)的試驗(yàn)研究姓名陳冬辰申請(qǐng)學(xué)位級(jí)別碩士專業(yè)環(huán)境工程指導(dǎo)教師王志盈張克峰20040601西安建筑科技大學(xué)碩士學(xué)位論文ASTUDYOFANEXPERIMENTONTECHNOLOGYOFACITY’SSEWAGERECYCLEDISPOSALOFTINYMATTERRESEMBLINGCOTTON’SBEINGFILTEREDBYCOLLECTIONSOFFILAMENTSANDTHEFILTEREDWATER’SBEINGSTERILIZEDSPEEIALITYENVIRONMENTALENGINEERINGPOSTGRADUATECHENDONGCHENTUTORPROFESSORWANGZHIYINGXI’ANUNIVERSITYOFARCHITECTURETECHNOLOGYPROFESSORZHANGKEFENGFSHANDONGINSTITUTEOFARCHITECTURE&ENGINEERINGABSTRACTITISWELLKNOWNTHATTHESHORTAGEOFWATERHASRESTRICTEDTHECONTINUABLEDEVELOPMENTOFNATIONALECONOMYOFOURCOUNTRYNEVERTHELESS,ITISLUCKYENOUGHTHATITHASBEENFOUNDTHATACITY’SSEWAGERECYCLEISONEOFTHEMOSTEFFECTIVEMETHODSTHATCANBEADOPTEDTOSETTLESUCHPROBLEMSASTHESHORTAGEOFWATERANDTHEWATERPOLLUTIONATPRESENT,THEPROBLEMSTHATTHEENVIRONMENTALISTSARECONCEMEDABOUTAREASFOLLOWSWHICHKINDOFTECHNOLOGYOFSEWAGEDISPOSALANDRECYCLEISSELECTEDINORDERFORTHETREATEDWATERQUALITYTOCOMEUPTOTHESTANDARDOFTHERECYCLEWATERTHATOURCOUNTRYHASSETHOWMUCHISINVESTEDINTHECAPITALCONSTRUCTIONOFPROJECTSHOWMUCHISNEEDEDFORPAYINGFORTHEMOTIONANDISITCONVENIENTTUNANDTOMAINTAINONTHEBASISOFANALYZINGTHEPRACTICEINTHESEWAGERECYCLEATHOME,BYMEANSOFTHERECYCLEPROJECTINNO2WATERQUALITYPURIFICATIONFACTORYINJINANCITYTHISTHESISMAKESASYSTEMATICSTUDYOFTHETECHNOLOGYOFACITY’SSEWAGERECYCLEDISPOSALANDTHEOBTAINEDRESULTSAREASFOLLOWS1ONTHEBASISOFTHEFINDINGSREPORTONSEWAGEDISPOSALANDRECYCLECARRIEDOUTINSHANDONGPROVINCE,THEPRESENTCONDITIONISANALYZEDCONCERNINGTHEⅡ
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簡(jiǎn)介:東南大學(xué)碩士學(xué)位論文半干法煙道噴射石灰漿煙氣脫硫技術(shù)工藝與機(jī)理研究姓名李曉斐申請(qǐng)學(xué)位級(jí)別碩士專業(yè)環(huán)境工程指導(dǎo)教師馬光傅大放200231東南大掌碩士掌位論支、卜PIKMJ道噴射_J荻漿煙氣脫硫技術(shù)J芝與機(jī)理塒F宄ABSTRACTSEMIDRYFLUEGASDESULFURIZATIONBYINDUCTSORBENTINJECTIONISAFEASIBLETECHNIQUEFORCHINATHEMAJORADVANTAGESOFTHISPROCESSARELESSINVENTIONANDOCCUPATION,MIDDLEEFFICIENCYDRYSOLIDWASTEPRODUCED,EASYSETUPINANEXISTINGBOILERORPOWERPLANTTHEAIMOFTHISWORKISTOSTUDYTHEOPERATIONCONDITIONSOFTHISPROCESSANDITSINFLUENCEFACTORSONMIDDLESCALEEQUIPMENT;TOSTUDYHOWTOIMPROVES02REMOVALEFFICIENCYANDUTILIZATIONOFSORBENTBYENHANCINGACTIVITYOFSORBENTRESULTSOFTHISRESEARCHSHOWTHATIMPORTANTFACTORSWHICHAFFECTTHEDESULFURIZATIONEFFICIENCYARE1CA/SIN1O16ISSUITABLEFORTHISTECHNIQUE;CONCENTRATIONOFSLURRYCANBECONTROLLEDIN10%L5%2INITIALCONCENTRATIONOFS02ISNOTCONSIDEREDAIMPORTANLPARAMETER;3EFFICIENCYOFS02REMOVALANDUTILIZATIONOFSORBENTWILLDECREASEWITHELE、ATIONOFINITIALTEMPERATUREOFFLUEGASIFOTHERLHCTORSKEEPUNCHANGED;4THEEFFICIENCIESWILLINCREASEBY2%WITH1%DECREASEOFAPPROACH;IDEALAPPROACHESCANRESULTFROMOUTLETTEMPERATUREOFFLUEGASWHICHISCONTROLLEDIN75。C85℃5THESPRAYERNOZZLEEQUIPPEDINVENTURITUBEINTHEFRONTOFTHEREACTORCANMAKEGASSLURRYMIXEDWELL;6THEREMUSTBEANAPPROPRIATERADIUMOFSORBENTPARTICLETHATNOTONLYMAKESTHEHIGHESTS02REMOVAL,BUTALSOAVOIDSCLING;7FLYASHINFLUEGASCANENHANCETHEEFFICIENCYOF02REMOVALBYABOUT5%ENHANCETHEUTILIZATIONOFSORBENTBY7%~10%8WHILETHEEFFICIENCIESOFTHISSEMIDRYFGDPROCESSAREONLY20%30%,THETOTALS02REMOVALTHESUMOFTHEREMOVALINTHEDUCTSECTIONANDINTHEFABRICFILTERCANBEUPTO50%60%SUCHRESEARCHES,PRESSUREHYDRATIONTREATMENT,ADDITIVEANDNEWSILICAENHANCELIMESORBENTWERETAKENITISFOUNDTHATPRESSUREHYDRATIONTREATMENTCANATTAINAHIGHERS02REMOVALEFFICIENCYWHICHEXCEEDS20%OFATMOSPHERICHYDRATIONTREATMENTANDAHIGHERUTILIZATIONOFSORBENTBY6%~1O%ITISALSOFOUNDTHATTHEEFFICIENCIESOFTHISPRESSUREHYDRATIONSORBENTAREBARELYAFFECTEDBYTHEINITIALCONCENTRATIONOFS01;2THESORBENTWITH1%NACIADDEDINSLURRYCANEXCEED5%S01REMOVALEFFICIENCYWHILETHEEFFICIENCYCANINCREASE10%IF1%NACIISADDEDINHYDRATION;3MORETHAN20%EFFICIENCYCALLBEACHIEVEDBYUSINGNEWSILICAENHANCED
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簡(jiǎn)介:同濟(jì)大學(xué)碩士學(xué)位論文廢水膜生物反應(yīng)器工藝處理中膜污染與膜清洗技術(shù)的研究姓名孫振龍申請(qǐng)學(xué)位級(jí)別碩士專業(yè)環(huán)境工程指導(dǎo)教師陳紹偉200311&廢水膜生物反應(yīng)器工藝處理A胰巧素與膜清洗技求的研究口Ⅱ摘要口ABSTRACTTHISDISSERTATIONPRESENTSTHEEXPERIMENTALRESULTSONTHESUBMERGEDMEMBRANEBIOREACTORSMBRFORTHETREATMENTOFFERMENTATIONWASTEWATERTHERESEARCH,WHICHWASDIVIDEDINTO3SECTIONS,HASBEENOPERATEDFORMORETHANAYEARTOINVESTIGATETHEMEMBRANEFOULINGPHENOMENAANDITSCOUNTERMEASURESALSO,ARELATIVELYDEPENDENTRESEARCHONTHECLEANINGMETHODSWASCARRIEDOUTSEVERALCONCLUSIONSHAVEBEENDRAWNBASEDONTHESEEXPERIMENTS,TRIALSINTHESMBRWITHAHIGHACTIVATEDSLUDGECONCENTRATIONOFUPTO159/L,SHOWEDTHATFERMENTATIONWASTEWATERWASBIODEGRADEDWITHACODREMOVALRATEOF86%DUETOTHECOMPLETERETENTIONOFSUSPENDEDSOLIDSBYTHEMEMBRANEMODULETHEMBRSYSTEMSHOWSGOODPOTENTIALFORAPPLICATIONINFERMENTATIONWASTEWATERTHEMEMBRANEFOULINGINCREASEDALTHOU甌AERATIONHASANEFFECTOFBLOCKINGTHEADSORPTIONOFSUSPENDEDSOLIDSTOMEMBRANESURFACETHETOTALRESISTANCEWENTUPFROM4681012M一1TO8801012M一1AFTERABOUT25MINSATTHEASSIGNEDSUCTIONPRESSUREOF30KPA,MLSSCONCENTRATIONOF1389/LANDAERATIONRATEOF145M3/HRTHECAKELAYERRESISTANCEISTHEMAINFACTORTHATLEDTOTHEREDUCTIONOFMEMBRANEFLUXTHEPROPORTIONOFCAKELAYERRESISTANCETOTOTALRESISTANCEISUPTO9401%AFTERONDAYOPERATIONTHEEFFECTOFZEOLITEADDITIONONTHEFILTRATIONCHARACTERISTICSOFACTIVATEDSLUDGEWASINVESTIGATEDITISBECAUSETHEADDITIONOFZEOLITELEDTOTHEDECREASEDOFNOTONLYTHECOMPRESSIBILITYOFSLUDGEFLOCBUTALSOTHECONTENTOFEXCELLULARPOLYMERICSUBSTANCESEPSSINSIDETHEMICROBIALFLOE,WHICHINCREASEDPOROSITYOFCAKELAYERANDTHUSENHANCEDTHEMEMBRANEFLUXASTOTHECHEMICALCLEANINGOFSELFMADEFOULEDMEMBRANEMODULE,THESALNEFLUXRESTORATIONRATEHASACHIEVEDBETWEENSOAKINGMETHODANDBACKFLUSHCLEANINGANDTHECOMBINATIONOFSEVERALCLEANINGAGENTHASAMOREEFFECTIVERESULTSONTHERESTORATIONOFMEMBRANEFITIX
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簡(jiǎn)介:16SRDNA分子生物學(xué)分析技術(shù)在水處理工藝中的初步應(yīng)用聲明聲明本人鄭重聲明本人在導(dǎo)師的指導(dǎo)下,獨(dú)立進(jìn)行研究工作所取得的成果,撰寫成碩士學(xué)位論文“16SRDNA分子生物學(xué)分析技術(shù)在水處理工藝中的初步應(yīng)用”。除論文中己經(jīng)注明引用的內(nèi)容外,對(duì)本文的研究做出重要貢獻(xiàn)的個(gè)人和集體,均已在文中以明確方式標(biāo)明。本論文中不含任何未加明確注明的其他個(gè)人或集體已經(jīng)公開發(fā)表或未公開發(fā)表的成功。本聲明的法律責(zé)任由本人承擔(dān)。學(xué)位論文作者簽名2004年2月20日_一一一一一一216SRDNA分子生物學(xué)分析技術(shù)在水處理工藝中的初步應(yīng)用ABSTRACTABSTRACTITISREPORTEDTHATWITHOUTCULTIVATIONDNACOULDBEDIRECTLYEXTRACTEDFROMENVIRONMENTALSAMPLESWITHMOLECULARBIOLOGICALMETHODSSUCHASPOLYMERASECHAINREACTIONPCRANDDENATURTINGGRADIENTGELELECTROPHORESISDGGETHECOMMUNITYDIVERSITYANDMAINBACTERIASPECIESOFENVIRONMENTALSAMPLECANBESTUDIEDBYANALYZING16SRDNAINTHISWORKPCR一DGGETECHNOLOGYHASBEENUSEDINMICROORGANISMANALYSISOFENVIRONMENTALSAMPLEINTHEMAINFILEDOFENVIRONMENTALSCIENCEANDENGINEERINGINCLUDINGACTIVATEDSLUDGEINTRADITIONALMUNICIPALSEWAGETREATMENTANDCHEWBIOFLOCCULATIONPROCESSBIOFILMINNITRIFICATIONSUSPENSIONPACKEDBEDSLUDGEINTREATMENTOFMUNICIPALSEWAGESLUDGESLUDGEIMPACTED妙HIGHCONCENTRATIONNI14ANDN03SLUDGEAFTERCULTUREANDSLUDGEINTHICKOILWASTEWATERTREATMENTTHECOMPARISONOFMICROORGANISMCOMMUNITIESINSLUDGEANDBIOFILMSAMPLESINTRADITIONALMUNICIPALSEWAGETREATMENTANDDIFERPROCESSOFCHEWBIOFLOCCULATIONTREATMENTWASGIVENTHEIMPACTEDINFLUENCEOFHIGHCONCENTRATIONNWANDN03INMICROORGANISMCOMMUNITIESOFSLUDGEWASBEENANALYSEDINPAPERTHEMUTATIVECOURSEINDIVERSITYOFBACTERIALINEFICIENTMUNICIPALSEWAGESLUDGETREATMENTWASALSOBEENSTUDIEDANDBESIDESWEANALYSEDTHEDIFERENCEOFBACTERIASPECIESANDBACTERIUMDIVERSITYINTHICKOILWASTEWATERMIDTEMPERATUREANDHIGHTEMPERATURETREATMENTTHESEQUENCESOFSEVERAL16SRDNADGGEFRAGMENTSHAVEBEENDETERMINEDANDSOMEPOSSIBLEBACTERIASHAVEBEENCONFIRMEDINCOMPARISIONINGENEBANKNCBITHERESULTHASSHOWEDTHAT山EPCRDGGETECHNOLOGYCOMBINEDWITHSEQUENCESDETERMINATIONISAFEASIBLEANDEFFICIENTMETHODFORMICROORGANISMANALYSISINENVIRONMENTALSAMPLETHISPAPERALSODISCUSSEDSOMEPROBLEMSINANALYZINGENVIRONMENTALSCIENCEUSINGTHISTECHNOLOGYTHETRENDOFTHESTU勿認(rèn)THEFIELDOFENVIRONMENTALSCIENCEANDENGINEERINGWASALSOSIMPLYINTRODUCEDKEYWORD16SRDNAPCRDGGEMOLECULARBIOTECHNOLOGYENVIRORTMENTALSAMPLEACTIVATEDSLUDGEBIOFILM,,目戶,加,、_6_
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簡(jiǎn)介:東南大學(xué)碩士學(xué)位論文廢水膜生物工藝處理中膜污染與膜清洗技術(shù)的研究姓名夏明芳申請(qǐng)學(xué)位級(jí)別碩士專業(yè)材料工程指導(dǎo)教師張征林張利民20030901東南大學(xué)碩士學(xué)位論文ABSTRACT礎(chǔ)SPAPERSTUDIEDTHEDEVELOPINGHISTORYTHECHARACTERISTICS,THEMECHANISMANDTHEAPPLICATIONOFTHEMEMBRANEBIOREACTORMBRTECHNOLOGYTHEINFLUENCEOFTHEMEMBRANEFOULINGWASALSOSUMMARIZEDBYTESTINGTHEMEMBRANEFOULINGCHARACTERISTICSOFVARIOUSKINDOFMBRSUCHASTHEFLATMB&THEHOLLOWFIBERMBRTHECAPILLARYTUBEMBRUNDERDIFFERENTHYDROMECHANICALCONDITIONS,WELEARNEDTHEINFLUENCEOFWORKINGTIME,THEPROCESSINGPRESSURETOTHEMEMBRANEFOULINGTHEMETHODSTOCONTROLANDWIPEOFFTHEMEMBRANEFOULINGWEREOPTIMIZEDTHEDESIGNOFAFLATⅣ略RWASCARRIEDOUTTOTREATTHEPRACTICALINDUSTRIALWATERTHEMAINRESULTSAREASFOLLOWING1THEOPERATIONOFTHESCPARATECAPILLARYMEMBRANE,SEPARATEHOLLOWFIBERMEMBRANEANDTHEFLATMEMBRANEMODULEFITTHEMODELOFSLUDGECONCENTRATIONCONTROLLEDMEMBRANEFLUXDECREASETHEMEMBRANEFLUXDECREASEWITHTHESLUDGECONCENTRATIONINCREASESTHEREISA109ARITHMIERELATIONBETWEENTHESLUDGECONCENTRATIONANDTHEVELOCITYOFTHEMEMBRANEFLUXDECREASEADDINGZEOLITEINTHEWATERCANCAUSETHEMEMBRANEFLAXTOINCREASECOMPARATIVELY2THEREARETHREEMOMENTSINITSCHANGEOFMEMBRANEBLOCKAGEASFARASAFLATMBRWASCONCERNEDATTHEBEGINNINGTHERESISTANCEREMAINEDINALOWLEVEL;THENITROSERAPIDLYWITHTHEFOULINGOFTHEMEMBRANE;INTHETHIRDMOMENT,THESLUDGEBLOCKWASCONSTANTLYWIPEDOFFBYITSGRAVITYANDTHEAERATION,THERESISTANCESWUNGATTHEENDOFTHEOPERATION,THERESISTANCECAUSEDBYTHESLUDGEBLOCKACCOUNTFORUPPER3/4THETOTAL3FORTHECAPILLARYMBRINREVERSEWASHBYNACLOISMOREERIECTIVETHANBYWATERBUTISALSOMOREEXPENSIVEFORTHEHOLLOWFIBERMBR,WASHBYNACLOISOPTIMALWHILEOTHERREAGENTSSUCHASNAOHANDHCLAREALSOEFFECTIVEFORTHEFLATMBRTHEMECHANICALFRICTIONCANOBTAINGOODRESULT4TOSTUDYTHEEFFECTOFINVERSEWASHBYDIFFERENTREAGENTS,WESELECTTHEHOLLOWMBRT0DOFURTHERRESEARCHTHERESULTISARRANGEDFROMTHEBESTTOTHEWORSTASFOLLOWING110DISINFECTOR120NACL0,05%NAOH,1%H202,05%HCITHETEMPERATURECANAFFECTTHERESULTGREATLYABETTERRESULTWILLGETINAHIGHERTEMPERATURETHEMIXTUREOFCERTAINKIRIDOFREAGENTSCANBEUSEDTOACHIEVETHEPURPOSE5THEFLATME;RHASBEENUSEDINAPRACTICALINDUSTRIALWASTEWATERTREATMENTPLANTINTHEPUDONGBRANCHOFSHAHGHAIHUAGUANGBREWHOUSETHEDESIGNEDREMOVALRATIOOFCODISUPPER96%THETOTALINVENTIS2135800YUAN,THEAVERAGECOSTIS349YUARDM3WASTEWATERTHECODOFTHEEMUENCEIS96MG/L,LOWERTHANTHEFIRSTCLASSEFFIUENTCRITERIONKEYWORDSMEMBRANEBIOREACTORMBR;WASTEWATER;MEMBRANEFOULING;MEMBRANEWASH
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簡(jiǎn)介:北京工業(yè)大學(xué)碩士學(xué)位論文CASS工藝膜過濾中水處理技術(shù)的研究姓名王坤申請(qǐng)學(xué)位級(jí)別碩士專業(yè)市政工程指導(dǎo)教師張杰楊宏200351北京工業(yè)大學(xué)工學(xué)碩士學(xué)位論文應(yīng)用該裝置處理生活污水,實(shí)驗(yàn)證明反沖制水的運(yùn)行方式優(yōu)于間歇制水,對(duì)提高膜通量效果顯著。通過對(duì)最佳反沖洗周期的探討,利用膜自身的性能,采用低壓恒流啟動(dòng)、少量多次反沖洗的運(yùn)行方式,有效地提高了水通量、減緩了膜的污染,延長(zhǎng)了膜的使用壽命。多功能外罩式膜反應(yīng)器處理生活污水,CODC,、BOD5、NH3一N、濁度、細(xì)菌等均得到良好的去除效果,各項(xiàng)指標(biāo)均達(dá)到生活雜用水的水質(zhì)標(biāo)準(zhǔn)。關(guān)鍵詞活性污泥;超濾膜污染膜生物反應(yīng)器組合工藝反沖洗周期II
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簡(jiǎn)介:國(guó)內(nèi)圖書分類號(hào)基曼2國(guó)際圖書分類號(hào)碩士學(xué)位論文基于刖O生物接觸氧化.超濾膜工藝的小型中水處理技術(shù)研究碩士研究生趙堂貴導(dǎo)師姓名言紅墨{扛申請(qǐng)學(xué)位級(jí)別王堂亟±學(xué)科、專業(yè)巫埴科堂皇王猩所在單位亞墟皇壹亟王捏堂隨答辯日期2Q壘生12旦學(xué)位授予單位壹島理王太堂碩士學(xué)位論文基于A/O生物接觸氧化.超濾膜工藝的小型中水處理技術(shù)研究學(xué)位論文答辯日期ZDJ妒孚肜用指導(dǎo)教師簽字.蠶猩答辯委員會(huì)成員簽字糾篷胯爍∥沙鋤勵(lì)Ⅸ
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簡(jiǎn)介:分類號(hào)TQ09密級(jí)公開學(xué)校代碼10057研究生學(xué)號(hào)12842915苯甲酸生產(chǎn)工藝殘?jiān)锈掓囧i提取分離技術(shù)的研究STUDYONEXTRACTIONANDSEPARATIOⅡOFCOBALT,NICKELANDMANGANESEFROMRESIDUEOFBENZOICACIDPRODUCTIONPROCESS工程領(lǐng)域名稱化學(xué)工程指導(dǎo)教師姓名王昶教授研究生姓名綦曉倩申請(qǐng)學(xué)位類別工程碩士論文提交日期2014年12月論文課題來源自選項(xiàng)目學(xué)位授予單位天津科技大學(xué)摘要苯甲酸生產(chǎn)工藝殘?jiān)械你@鎳錳等金屬主要是來自于生產(chǎn)過程中投加的催化劑??紤]到目前我國(guó)鈷鎳錳金屬資源的緊缺狀況以及對(duì)于環(huán)境保護(hù)的迫切要求,此殘?jiān)薪饘俚姆蛛x回收是十分有必要的。本研究探討了工業(yè)化生產(chǎn)苯甲酸生產(chǎn)殘?jiān)木C合利用;研究了酸種類、酸濃度、H202質(zhì)量分?jǐn)?shù)對(duì)三種金屬提取率的影響;通過氨水絡(luò)合沉淀分離錳,使用P507萃取劑對(duì)濾液中的鈷、鎳進(jìn)行萃取分離,進(jìn)一步研究了平衡水相DH、P507皂化率、P507體積分?jǐn)?shù)和相比~0對(duì)金屬萃取率、鈷鎳分離系數(shù)B的影響以及有機(jī)相中鈷的反萃的最佳條件。分別利用干法、濕法兩種不同的消解方法,對(duì)工業(yè)生產(chǎn)苯甲酸殘?jiān)M(jìn)行處理,結(jié)果表明濕法消解的效果優(yōu)于干法。采用原子吸收分光光度法準(zhǔn)確測(cè)定殘?jiān)锈挕㈡?、錳的含量,分別為03071%、O0155%和O0850%。采用溶劑萃取法對(duì)苯甲酸生產(chǎn)工藝殘?jiān)械拟掓囧i進(jìn)行回收。研究了酸種類、酸濃度、H202質(zhì)量分?jǐn)?shù)對(duì)鈷鎳錳萃取回收率的影響。結(jié)果表明,H2S04濃度為20MOL/L、H202質(zhì)量分?jǐn)?shù)為25%時(shí),鈷、鎳、錳的萃取回收率較高,分別達(dá)到8777%、8650%和8859%。本文對(duì)于鈷、鎳、錳三種金屬的分離分步進(jìn)行。首先依據(jù)鈷、鎳、錳三種金屬的理化性質(zhì)不同,將萃取液用過量氨水滴定,使錳以MNOH2沉淀的形式與鉆鎳離子分離開來,其中錳的沉淀率可達(dá)到9367%,濾液中測(cè)得鈷、鎳的回收率分別達(dá)到9208%、9852%。選用P507為主要的萃取劑,以磺化煤油為溶劑萃取分離鈷、鎳,實(shí)驗(yàn)中添加少量TBP增強(qiáng)分相效果。經(jīng)過多組的比較試驗(yàn),最終優(yōu)選出鈷鎳分離的最佳條件為15%P5075%TBP80%磺化煤油、PH4、皂化率60%、相比L1。鈷鎳的萃取率均在80%以上,有效實(shí)現(xiàn)了鈷鎳的分離。有機(jī)相中鈷的反萃最佳條件為硫酸濃度2OM01/L,反萃相比~O為11,鉆的反萃率達(dá)到94%以上。關(guān)鍵詞苯甲酸生產(chǎn)殘?jiān)惠腿?;鈷鎳錳;分離與回收
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簡(jiǎn)介:申請(qǐng)上海交通大學(xué)工程碩士學(xué)位論文面向生產(chǎn)現(xiàn)場(chǎng)的三維數(shù)字化裝配工藝集面向生產(chǎn)現(xiàn)場(chǎng)的三維數(shù)字化裝配工藝集成技術(shù)研究成技術(shù)研究院系機(jī)械與動(dòng)力工程學(xué)院工程領(lǐng)域機(jī)械工程交大導(dǎo)師蔣丹教授企業(yè)導(dǎo)師潘凌云高級(jí)工程師工程碩士楊芳學(xué)號(hào)1100212122上海交通大學(xué)機(jī)械與動(dòng)力工程學(xué)院上海交通大學(xué)機(jī)械與動(dòng)力工程學(xué)院20132013年0505月
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簡(jiǎn)介:本論文以招遠(yuǎn)市污水處理廠運(yùn)行檢測(cè)數(shù)據(jù),利用BIOWIN3軟件建立百樂克污水處理工藝數(shù)學(xué)模型,運(yùn)用諸城市銀河污水處理廠運(yùn)行數(shù)據(jù)對(duì)該模型進(jìn)行驗(yàn)證,結(jié)果表明,該模型較好模擬百樂克工藝運(yùn)行情況,對(duì)進(jìn)一步應(yīng)用于百樂克工藝污水處理廠運(yùn)行和設(shè)計(jì)具有指導(dǎo)意義。論文探討了計(jì)算機(jī)模擬技術(shù)的理論基礎(chǔ);系統(tǒng)地研究了百樂克工藝的工藝原理、工藝特點(diǎn)以及在污水處理中的應(yīng)用情況;以招遠(yuǎn)市污水處理廠為例,采用該廠運(yùn)行數(shù)據(jù)為入流數(shù)據(jù),經(jīng)比較選擇利用BIOWIN3軟件建立百樂克工藝模型,按溫度不同分別對(duì)四個(gè)季節(jié)進(jìn)行模擬,通過調(diào)整動(dòng)力學(xué)參數(shù)和化學(xué)計(jì)量學(xué)參數(shù),使模擬結(jié)果與實(shí)測(cè)值相吻合,相對(duì)誤差在10%以內(nèi)。以諸城市銀河污水處理廠運(yùn)行數(shù)據(jù)對(duì)該模型進(jìn)行驗(yàn)證,結(jié)果與實(shí)測(cè)值相對(duì)誤差在15%以內(nèi)。利用BIOWIN3軟件模擬結(jié)果表明1、該軟件是適合國(guó)內(nèi)水質(zhì)情況的,可以應(yīng)用于國(guó)內(nèi)活性污泥法的城市污水處理廠。2、可指導(dǎo)污水處理廠運(yùn)行可預(yù)測(cè)出水水質(zhì)情況,可在線觀測(cè)到各處理單元的處理效果情況,可求出最佳的運(yùn)行參數(shù)。3、在輔助設(shè)計(jì)方面的應(yīng)用可得出設(shè)計(jì)參數(shù),可預(yù)測(cè)出水水質(zhì),求得最佳的運(yùn)行參數(shù)。
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簡(jiǎn)介:天津作為北方大城市屬于資源性缺水城市,年人均占有水量為156M,僅為全國(guó)人均占有量的116,世界人均占有量的150,遠(yuǎn)遠(yuǎn)低于世界公認(rèn)的人均占有量1000M的缺水警戒線,屬于重度缺水地區(qū)。由于海河流域水體污涇比嚴(yán)重失衡,致使處于下游的天津水污染嚴(yán)重,更加劇了缺水矛盾。未來一段時(shí)期內(nèi),由于天津市人口的快速增加,人民生活水平的提高及工農(nóng)業(yè)生產(chǎn)的發(fā)展,天津市的缺水形勢(shì)將加劇。面對(duì)水資源短缺的現(xiàn)狀,能否解決天津市用水緊張狀況,關(guān)系到天津市經(jīng)濟(jì)能否長(zhǎng)期穩(wěn)定、持續(xù)發(fā)展。,因此進(jìn)行再生水回用的研究及應(yīng)用,無(wú)疑具有積極而現(xiàn)實(shí)的意義。本研究以衛(wèi)國(guó)道再生水生產(chǎn)點(diǎn)為工藝依托,主要著眼于工藝優(yōu)化設(shè)計(jì),進(jìn)行了一系列試驗(yàn)研究,并在實(shí)驗(yàn)結(jié)果基礎(chǔ)上提出了切實(shí)可行的設(shè)計(jì)方案,同時(shí)對(duì)存在的問題及可能的解決辦法亦進(jìn)行了具有針對(duì)性地主要是水中氨氮、磷及COD去除方法實(shí)際探討,為以后進(jìn)一步提高再生水出水水質(zhì)、降低生產(chǎn)成本提供參考。其中主要的研究?jī)?nèi)容為以東郊污水處理廠二級(jí)出水為水源,以衛(wèi)國(guó)道洗車站為實(shí)驗(yàn)基地,按園林綠化、河道景觀、居住區(qū)等不同再生水回用水質(zhì)要求,通過混凝沉淀、砂濾、活性炭、微濾、臭氧消毒等處理單元的工藝組合,探索研究最佳絮凝劑、最佳投藥量、臭氧發(fā)生量、加氯量等工藝運(yùn)行技術(shù)參數(shù),探索再生水回用處理工藝運(yùn)行操作具體方法和規(guī)律,進(jìn)行成本分析、技術(shù)分析。以探索最佳處理工藝,摸索運(yùn)行管理、操作技術(shù)與方法。
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簡(jiǎn)介:中國(guó)石油大學(xué)碩士學(xué)位論文華東申請(qǐng)工學(xué)碩士學(xué)位石化企業(yè)工藝廢氣的分析及治理技術(shù)研究學(xué)科專業(yè)培養(yǎng)方向碩士生O指導(dǎo)教師環(huán)境工程大氣污染及其防治馬振芳趙朝成教授入學(xué)日期2004年9月論文完成日妍2007年5月RESEARCHONANALYSISANDTREATMENTTECHNOLOGYOFPETROCHEMICALENTERPRISE№TEGASMAZHENFANGENVIRONMENTALENGINEERINGDIRECTEDBYPROFESSORZHAOCHAOCHENGABSTRAETODOURPOULNIONHASABADEFFECTOILTHESOCIETYALLCOUNTRIESINTHEWORLDALEPAYINGMOREATTENTIONTOTHECONTROLOFODOURPOLLU60幾THEPETROCHEMICALENTERPRISEISONEOFTHEMOSTSERIOUSODOUREMISSIONINDUSTRIES,SOTHEPHOTOCATALYSISTECHNOLOGYOFTHEREMOVALOFODOURFROMPETROCHEMICALENTERPRISEHASBEENINVESTIGATEDINTHELABORATORYTHEEFFECTSOFDIFFERENTPHOTOCATALYSIS,THECATALYSTFILLEDMODES,INLETCONCENTRATIONANDGASVOLEEITY011THEDEGRADATIONRATEOFBOLUENEWEREINVESTIGATEDANDTHENTHETITANIUMDIOXIDEFN09LOADEDACTIVEDCARBONFIBERACFFELTWASCHOSENTOBEUSEDINTHELATEREXPERIMENLONTHEBASISOFTHELABORATORYINVESTIGATIONTHEPHOTOEATALYSISEQUIPMENTFORTHEREMOVALOFODOURHASBEENDESIGNEDTHEGASFROMELECTRICDESALTINGSEWAGEWELLVENTPIPEOFTHEDUSHANZIREFINERYWASTAKEN船THEMODELPOLLUTANTTHEEFFECTSOFTHEGASVELOCITY,IRRADIATIONANDTHEEXISTENCEOFH2SETC011THEREMOVALRATEOFODOURCONCENTRATIONWEREINVESTIGATEDBYTHEGASSOLIDPHOTOCATALYTICREACTORANDTHEADVANCEDAUSTRALIANDYNASCENTDIGITALOLFAETOMETERTHEGASCHROMATOGRAPHYETCHAVEBEENUSEDTOANALYZETHEREMOVALRATEOFTHEODOURCONCENTRATIONTHERESULTSSHOWEDTHATTHEODOURREMOVALRATECOULDKEEPABOVE80%KEYWORDSODOURPHOTOEATALYSIS,TI02/ACFPHOTOCATALYSTIII
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簡(jiǎn)介:大連理工大學(xué)碩士學(xué)位論文焦化廢水AAO工藝運(yùn)行管理及復(fù)極性三維電極技術(shù)深度處理姓名邢向軍申請(qǐng)學(xué)位級(jí)別碩士專業(yè)環(huán)境工程指導(dǎo)教師周集體20050329堡些鏖查生三苧堡塹笪墨墾塹堡絲三絲皇堡墊查鯊墾竺翌一STUDYONMANAGEMENTOFAA/OSYSTEMANDADVANCEDTREATMENTOFCOKINGWASTEWATERBYBIPOLARTHREEDIMENSIONALELECTRODETECHNOLOGYABSTRACTTHEEXPERIMENTALRESULTSSHOWEDTHATBIPOLARTHREEDIMENSIONALELECTRODEPROCESSWASEFFICIENTINCODCRREDUCTIONSCONSIDERINGTHETECHNICALANDECONOMICALFEASIBILITIES,THETWOSTRUCTURE,F(xiàn)IXEDBEDANDFLUIDIZEDBED,WERESELECTEDASEXPERIMENTALSETUPANDGRAPHITEELECTRODEANDPONTILELECTRODEWEREUSEDINTHEEXPERIMENTNEEFFICIENCYOFREMOVINGCODCRWASMAINLYSTUDIEDINTHEEXPERIMENT,VARIOUSINFLUENCINGFACTORSSUCHASCELLVOLTAGE,REACTTIME,QUANTITIESOFLIQUIDCATALYST,PH,QUANTITIESOFGASANDQUANTITIESOFACTIVATEDCARBONWEREEXAMINED,ANDTHETECHNOLOGICALPARAMETERSWEREOBTAINEDTHERESULTSWERESHOWNASFCLLLOWSAA/OPROCESSISFIRSTLYCONSIDEREDINCOKINGWASTEWATERTREATMNETWHICHHASABETTEREFFECTSONTHEWASTEWATERCONTAININGHIGHCONCENTRATIONOFNH3NBUTTHEREMOVALEFFICIENCYOFCODCRWASLOWITISPRACTICABLETOTREATCOKEPLANTWASTEWATERBYBIPOLARTHREEDIMENSIONALELECTRODEPROCESSBYCONTROLINGAPPROPRIATEFACTORS,AHIGHERREMOVALEFFICIENCYOFCOD口CARLBEOBTAINEDWITHIOWCOSTAFTERTREATEDBVTHEBIPOLARTHREEDIMENNONALEKCTMDEPROCESSANDAA/0PROCESS,THEQUALITYOFCLEANEDWATERCANATTAINTHENATIONALDISCHARGESTANDARDOFGRADEONEKEYWORDSCOKEPLANTWASTEWATERAA/OPROCESS,BIPOLARTHREEDIMENSIONALELECTRODEIL
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