پديد آورنده :
ابراهيمي سيريزي، مجتبي
عنوان :
حذف سرب از محلول هاي آبي با استفاده از زغال زيستي ساخته شده از پوست سخت پسته
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
آبياري و زهكشي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
پانزده، 92ص.: مصور، جدول، نمودار
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
منوچهر حيدرپور
استاد مشاور :
حسين سقائيان نژاد
توصيفگر ها :
جذب , آزمايش ناپيوسته , آزمايش ستوني
تاريخ نمايه سازي :
94/2/22
استاد داور :
جهانگير عابدي كوپايي، نورالله ميرغفاري
تاريخ ورود اطلاعات :
1396/09/27
چكيده انگليسي :
95Removal of Pb from Aqucous Solutions Using Biochar Produced from Pistachio Hard Shell Mojtaba Ebrahimi Serizi Mojtaba mes2012 @yahoo com January 4 2015 Department of Water Engineering College of Agriculture Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language FarsiSupervisor Manouchehr Heidarpour E mail heidar@cc iut ac irAbstractUndoubtedly the most important challenge in the coming decades is to accesssustainable and high quality water resources However several pollutants arecontaminating water resources Among contaminants heavy metals are of greatimportance due to long term persistence in environment Although application ofactivated carbon due to high porosity and specific surface area 600 to 2000 m2 g serves as one of the effective methods for removing heavy metals from aqueoussolutions but it is not cost effective Accordingly in recent years many researches havebeen produced and introduced a low cost adsorbent In the meantime plant residues andagricultural waste material due to low cost and easy access have been perceived as goodalternative in this area The present research deals with feasibility of biochar producedfrom pistachios hard shell as an adsorbent to remove lead Pb from aqueous solutions Experiments were performed in a continuous and discontinuous methods In batchexperiments biochar potential as an adsorbent in initial changes in the concentration amount of adsorbent contact time and pH of dissolved pollutants was determined Themaximum rate of lead adsorbed by biochar for pollutants solution in batch with pH 5 5in optimum adsorbent and pollutant contact time and the initial concentrations of 10mg L was found to be 7 49 mg g The adsorption rate after 24 hours was 8 41 mg g Inorder to characterize the biochar the FTIR SEM BET and CHNSO methods wereused According to BET specific surface area for biochar was estimated about 442 m2 g Pseudo first order kinetic model and Exponential function have good ability to predictthe lead adsorbed by biochar In order to complete studies on adsorbent columnar testswere conducted by taking three levels 2 3 and 4 mL min flow rate through the columnand 3 different amounts of adsorbent 2 3 and 4 cm into account The maximum amountof lead adsorbed by biochar under batch condition was obtained in flow 3 mL min adsorbing height of 2 cm and an initial concentration of 10 mg L equivalent to 3 91mg g Given determination coefficients R2 obtained from models Thomas Yoon Nelson Dose Response data from column tests in all three models predicted theadsorption process efficiently Under continuous condition lead removal rates at bestwas reduced 54 compared to the discrete one Keywords biochar lead absorption Batch experiment column experiment
استاد راهنما :
منوچهر حيدرپور
استاد مشاور :
حسين سقائيان نژاد
استاد داور :
جهانگير عابدي كوپايي، نورالله ميرغفاري
