电石渣水泥和石灰石水泥生命周期评价的比较研究

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1、西南交通大学硕士学位论文电石渣水泥和石灰石水泥生命周期评价的比较研究姓名：王超申请学位级别：硕士专业：环境工程指导教师：张建强20070401西南交通大学硕士学位论文第n页AbstractAlongwiththefurtherdevelopmentofcementindustry,theseriousenvironmentimpactcausedbythedepletionoftheabiotic，energyandthelargequantitydischargeofwastegasandowderdust,hasaffected

2、thesustainabledevelopmentofthewholecementindustry．Theeco—materialstypeindustryhasbecomethenecessarywayofthesustainabledevelopmentoftheinternationalcementindustry．Firstofa11．thisarticlehassetupalifecircleassessmentmethodofcementproductionsystem．ThenittakestheCalciumCarb

3、ideSludgecementsandlimestonecementsofacementmanufactureinSiChuanProvinceasthereasearchobject．Afterthat，itgatherstheemissioninventoryofenvironmentalpollutantofthetwoproductions．ByusingaserialofmethologiesmentionedbyI,CA,itstudiestheedgeconditions，indexofenvironmentalcom

4、patibilityassessmentsystemofthecementproduction,anddataconfirmsystem．Italsoassesstheenvironmentimpactofthecementproductionqualitilyandquantilyfromtheaspectofthedepletionofabiotic，humanhealthyandeco-environmentimpact．Aftertheworkingofclassify,characterise，enstandardand印

5、plyingofAHP,theenvironmentburdenofthetwoproductionsareget．ThemainconclusionofthisthesisisthattheenvironmentburdenoftheCalciumCarbideSludgecementandlimestonecementare1．05x10‘10／aandl．41x10一o／arespectively．Thewholeburdenoftheforerisreducedby25．53％comparingwiththelater．Th

6、eotherindexofenvironmentalloadenoftheforerarealsoreduced．TheyareADP：32．00％；EDP：25．65％；GWP：24．40％；AP：16．67％；NP：13．33％：HT：18．39％．ThesortofdecreasedegreeisADP>EDP>GWP>HT>AP>NP．SousingtheCalciumCarbideSludgecementCallreducethedepletionofADP,EDPandGWPeffectively．Anotherconc

7、lusionisthatthekeypollutestageofthecementproductionaretheresourceandpowerproductstageandthecementproductstage．ThemainenvironmentimpacttypeareEDP,HTandGWP．TheprominentpollutantisC02andowderdust．Thekeytoimprovetheenvironmentpropertyofcementistoincreasetheenergyefficiency

8、,todecreasethecarboantrawmaterialscontentandtoimprove西南交通大学硕士学位论文第珊页theburntechnology．Itisimpossibletoimprovetheenvir