پديد آورنده :
كيانفر، شهره
عنوان :
جذب بيولوژيكي فلزات سنگين با كاربرد بيوپليمر توليد شده از باكتري ﴿1390﴾ MGL 75
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
﴿مهندسي شيمي﴾
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مهندسي شيمي
صفحه شمار :
نه، 102، [II] ص: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
احمد محب، حسين غفوريان
توصيفگر ها :
انواع بيومس , مدلسازي , سنتيك واكنش
استاد داور :
فواد آقا ميري، كيخسرو كريمي
تاريخ ورود اطلاعات :
1396/02/17
رشته تحصيلي :
مهندسي شيمي
چكيده فارسي :
به فارسي و انگليسي:قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
AbstractDevelopment of technology and industrial uses of metals and their salts has caused fastgrowth of environment pollution by pollutant industrial wastewaters A major group ofpollutants present in industrial wastewater is heavy metals which should be removed fromwastewater by using proper methods before discharging them to the environment Fromconventional methods used for this group of metals are reverse osmosis and evaporation sedimentation clarification active carbon method and ion exchange In recent yearsbiological adsorption method has been introduced and considered as one of most effectivemethods for heavy metal removal from aqueous solutions In this research work adsorptioncapability of biomass MGL 75 1390 for batch adsorption of lead and cadmium cationsfrom aqueous solutions and effects of different parameters such as initial metal ionconcentration pH temperature and process time on the adsorption percentage wereinvestigated Results showed increasing pH and initial concentration and reduction oftemperature enhance metal adsorption by biomass Also results of kinetic studies provedthat almost 85 of metals was adsorbed very rapidly in the first 5 minutes and processreached to equilibrium after about 1 hour Different type of sugar was used in the mediumof the biomass producing bacteria and it was seen that despite change in the amount ofproduced biomass the type of sugar has no considerable effect on the amount of metaladsorption Experimental results were in good agreement with Langmuir and Freundlichmodels however the latter showed a better agreement for both cations Maximumadsorption was found by applying Langmuir model equal to 91 74 mg adsorption gr dryadsorbent for Cd2 and 158 73 for Pb2 Finally obtained results proved that biomass MGL75 1390 could be used as an effective and promising adsorbent for removal of Cd2 andPb2 cations from aqueous wastes
استاد راهنما :
احمد محب، حسين غفوريان
استاد داور :
فواد آقا ميري، كيخسرو كريمي
