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   Biosorption of Fe (III) from aqueous solution using brown algae Sargassum Vulgare  
   
نویسنده benaisa s. ,el mail r. ,jbari n.
منبع journal of materials and environmental science - 2016 - دوره : 7 - شماره : 5 - صفحه:1461 -1468
چکیده    The presence of metal ions in aqueous solutions represents,nowadays a major environmental problem. the presence study investigates the potential adsorption capacity of sargassum vulgare for the removal of iron (iii) ions from aqueous solution. the elaborated adsorbent was characterized using ftir analysis,in order to reveal the presence of functional groups. batch adsorption experiments were carried out to evaluate the effect of process parameter such as ph,contact time and adsorbent dosage on removal capacity. the optimum removal of iron (iii) ions was obtained at ph 3,adsorbent dose of 5 g/l and equilibrium time of 120 min. kinetic data were successfully described with pseudo-first order and pseudo-second order models. the results showed that the kinetic biosorption process of fe (iii) followed pseudo first order with (r2 = 0.99 and k = 0.056). the biosorption equilibrium was studied using langmuir and freundlich models. biosorption of iron (iii) onto sargassum vulgare biomass followed the langmuir isotherm (r2 = 0.99) with a maximum biosorption capacity of (qe= 63.67 mg/g).
کلیدواژه Algae; Biosorption; Iron; Isotherm; Kinetic
آدرس laboratory for water sciences,research and environmental analysis,chemistry department,college of sciences,university abdelmalek essaâdi,b.p. 2121,mhannech ii,tetouan, Morocco, laboratory for water sciences,research and environmental analysis,chemistry department,college of sciences,university abdelmalek essaâdi,b.p. 2121,mhannech ii,tetouan, Morocco, laboratory for water sciences,research and environmental analysis,chemistry department,college of sciences,university abdelmalek essaâdi,b.p. 2121,mhannech ii,tetouan, Morocco
 
     
   
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