پديد آورنده :
گشادرو، امير
عنوان :
حذف آلودگي رنگي ازمحلول آبي باكاربرد كربن ورقه ورقه درسيستم پيوسته و بررسي مدل هاي جذب حاكم
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
مهندسي شيمي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مهندسي شيمي
صفحه شمار :
سيزده، 115، [II]ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
توصيفگر ها :
آلاينده هاي رنگي , آلوتروپ هاي كربن
تاريخ نمايه سازي :
21/07/1387
استاد داور :
محمد چالكش اميري، علي اكبر دادخواه
تاريخ ورود اطلاعات :
1396/03/08
رشته تحصيلي :
مهندسي شيمي
چكيده فارسي :
به فارسي وانگليسي: قابل رويت در نسخه ديجيتال
چكيده انگليسي :
AbstractNowadays many of industries use colorants to have variation in their product Presence ofdyes in waste effluents even at low concentration is unfavorable and may cause toxiceffects Therefore many researchers are interested in finding new and effective methods forremoval of dye pollutants from industrial liquid waste streams Fixed bed adsorptioncolumns have been widely used for many years in industrial processes for removal ofcontaminants from e uents In this work the removal of dye pollutant from aqueoussolution by using exfoliated graphite in a continuous system and its governing adsorptionmodel was investigated To reach the aim of the work exfoliated graphite was synthesizedby proper chemical and thermal treatment of flake graphite and then the adsorptionisotherms of the dye Acid Blue 92 at aqueous solutions over wormlike exfoliated graphitewere determined experimentally The Langmuir and Radke Prausnitz models gave the bestresults for the adsorption isotherms whereas it was unsatisfactory for Freundlich model Also to complete the work an exclusive series of tests were carried out in a xed bedcolumn to determine the breakthrough curves Hereafter breakthrough time saturated timeand adsorbed mass were analyzed for each experiment and the behavior of the system wassimulated using a transient mathematical model A linear mass transfer driving force andan axial dispersion model with nonlinear adsorption isotherm were applied in thedeveloped model and the system of partial differential equation was solved numericallyusing MATLAB The dynamic model permits the prediction of the dye concentration at theadsorption column outlet considering the in uence of various operational parameters suchas feed concentration flow rate and adsorbent mass The results of the mathematical modelwere in good agreement with the experimental data
استاد داور :
محمد چالكش اميري، علي اكبر دادخواه
