Repository of Research and Investigative Information

Repository of Research and Investigative Information

Kurdistan University of Medical Sciences

Optimization of Cr(VI) adsorption by modified sesame hull from aqueous solutions using response surface methodology

(2020) Optimization of Cr(VI) adsorption by modified sesame hull from aqueous solutions using response surface methodology. International Journal of Environmental Analytical Chemistry.

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

The presence of chromium in the environment can be the cause of many toxic effects. The aim of this study was chromium adsorption by modified sesame hull at batch conditions. The effect of different variables such as pH, contact time, chromium concentration, and adsorbent dosage on the chromium adsorption was studied using the Box–Behnken Design. The high R2 (0.9763) indicated a high correlation between the experimental and predicted values. The optimum pH, contact time, initial chromium concentration and adsorbent dosage were found to be 3, 120 min, 23.23 mg/l and 4.94 g/l, respectively. At optimum conditions, the removal efficiency of chromium obtained 100%. The results indicated that BBD model could efficiently predict the optimum conditions for the chromium adsorption. The modified sesame hull can be used as an efficient adsorbent for chromium removal from aqueous solutions.

Item Type: Article
Keywords: Adsorption; Box–Behnken; design; chromium; modified sesame hull; isotherms
Subjects: WA Public Health > WA 670-847 Environmental Pollution. Sanitation
Divisions: Research Vice-Chancellor Department > Environmental Health Research Center
Page Range: pp. 1-5
Journal or Publication Title: International Journal of Environmental Analytical Chemistry
Journal Index: ISI, Scopus
Volume: 17
Publisher: Taylor and Francis Ltd.
Identification Number: 10.1080/03067319.2020.1763972
ISSN: 03067319
Depositing User: دکتر علیرضا غریب
URI: http://eprints.muk.ac.ir/id/eprint/4680

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