Volume 11, Issue 43 (2014)
FSCT 2014, 11(43): 79-89 |
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Biosorption of lead from milk by naoh_treated orange peel
Naghizade, S. 1, Esmaili, A. 2. FSCT 2014; 11 (43) :79-89
URL: http://fsct.modares.ac.ir/article-7-9013-en.html
URL: http://fsct.modares.ac.ir/article-7-9013-en.html
Abstract: (4746 Views)
Adsorption of Pb2+ from contaminated milk by NaOH treated orange peel due to lead contamination of pasturage, adosorption of Pb2+ from contaminated cow milk was investigated by innocuous NaOH treated orange peel. At first. Adsorption of Pb2+ was studied in aqueous solution contaminating 50ppm of Pb2+. Effect of adsorbent dose was considered in three different doses (1,2,4 g/l) temperature and particle size had no effect on Pb2+ biosorption. When pH has increased from 2 to 5.5 Pb2+ adosorption has augmented too. Continuing this work, model solution with composition similar to milk was prepared. In this study, the effect of several parameters on adosorption of Pb2+ fram milk model solution was measured by atomic absorption. Effect of adsorbent dose was considered in three different doses (5, 10,15,g/l). The data are better had no effect on the biosorption capacity of NaOH treated orange peel. Also results show that the ion–excheng mechanism is prevailing in the adsorption of Pb2+from milk model solution.
Received: 2010/12/29 | Accepted: 2011/12/29 | Published: 2014/06/22
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