By a News Reporter-Staff News Editor at Journal of Engineering -- Research findings on Chemical Engineering are discussed in a new report. According to news reporting originating from Tehran, Iran, by VerticalNews correspondents, research stated, "The aim of this research work is to investigate sorption characteristic of acid treated brown algae Sargassum bevanom (acid treated S. bevanom) for the removal of Cr(VI) ions from aqueous solutions. The acid-treated alga was prepared by transferring the S. bevanom into 0.5 M HCl and then stirring,the mixture at 300 rpm for 6 h at room temperature."
Our news editors obtained a quote from the research from Tarbiat Modares University, "The sorption of Cr(VI) ions by batch method is carried out. The optimum conditions of biosorption were found to be: a biomass dose of 0.7 g in 100 ml of Cr(VI), contact time of 110 min and pH 3, respectively. In optimum condition, removal efficiency was 89.64%. It was found that temperature has a positive effect on the removal efficiency. Four equations, i.e. Morris-Weber, Lagergren, Elovich and pseudo second order have been tested to track the kinetics of removal process. The Langmuir, Freundlich, Redlich-Peterson (R-P), Temkin and Dubnin-Radushkevic (D-R) are subjected to sorption data to estimate sorption capacity, intensity and energy. The thermodynamic parameters Delta H, Delta S and Delta G are evaluated. Thermodynamic parameters showed that the adsorption of Cr(VI) onto acid treated S. bevanom was feasible, spontaneous and endothermic under studied conditions. It can be concluded that acid treated S. bevanom has potential to remove Cr(VI) ions from aqueous solutions at different concentrations. Also it was achieved 80% desorption efficiency using NaOH and reusing of adsorbent shows high ability in the Cr(VI) removal from aqueous solution."
According to the news editors, the research concluded: "Meanwhile acid treated S. bevanom was used for the removal of Cr(VI) from industrial wastewater that shows considerable results."
For more information on this research see: Removal of Cr(VI) by modified brown algae Sargassum bevanom from aqueous solution and industrial wastewater. Journal of the Taiwan Institute of Chemical Engineers, 2013;44(6):977-989. Journal of the Taiwan Institute of Chemical Engineers can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of the Taiwan Institute of Chemical Engineers - www.elsevier.com/wps/product/cws_home/715607)
The news editors report that additional information may be obtained by contacting H. Javadian, Tarbiat Modares Univ, Fac Chem Engn, Tehran, Iran. Additional authors for this research include M. Ahmadi, M. Ghiasvand, S. Kahrizi and R. Katal.
Keywords for this news article include: Iran, Asia, Tehran, Chemical Engineering
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