Reviste: » Environmental Engineering and Management Journal» European Journal of Science and Theology» Sănătate Sport și Nutriție
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Optimization of process variables for cadmium removal from synthetic wastewaters by sphagnum moss peat Autori: Catalin Balan, Corneliu Cojocaru, Petru Bulai, Doina Bilba, Matei MacoveanuData aparitiei: March/April 2009 Revista: Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 ISSN: 1843 - 3707 Format PDF Abstract
The efficiency of Cd (II) removal from aqueous solutions was investigated using Sphagnum moss peat as sorbent. A 23 orthogonal central composite design was successfully employed for experimental design and analysis of results. The combined effect of the initial solution pH, peat dosage and initial Cd (II) concentration was studied and optimized using Response Surface Methodology (RSM). The optimum values of these variables were found to be pH = 4.72, 14.7 g peat /L and 13.64 mg Cd /L, respectively; in this point the removal efficiency is the maximum one (103.52 % given by empirical model and 99.9 % verified experimentally).
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