Research Article | OPEN ACCESS
Optimization of Adsorption Conditions of Cr (VI) by PEI Modified BSG Using Response Surface Methodology
1Xinlong Jiang, 2Zhengyu Ma, 2Yihua Jiang and 2Kunwei Duan
1Institute of Food and Fermentation Engineering
2College of Biology and Environment, Zhejiang Shuren University, Hangzhou 310015, China
Advance Journal of Food Science and Technology 2015 3:159-163
Received: August ‎19, ‎2014 | Accepted: September ‎14, ‎2014 | Published: February 05, 2015
Abstract
Surface response optimization of Adsorption Conditions of Cr (VI) wastewater by PEI modified brewer's grains (BSG) with the factors of pH value, adsorbent concentration, adsorption time, amount of adsorbent and the response of adsorption rate were studied. The optimal parameters for adsorption conditions were of adsorbent concentration of 113.30 mg/L, adsorbent particle size of 60~80 mesh, pH 1.79, adsorbent amount of 4.99 g/L, adsorption time and temperature of 1.88 h and 30°C, respectively. The maximal absorption rate got 100.0%, adsorption capacity was 46.58 mg/g. The PEI modified BSG is a promising, cheap, efficient, new biological materials of adsorption for Cr (VI) in wastewater.
Keywords:
Adsorption conditions, Cr (VI), modified brewer's grains (BSG), response surface methodology,
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Competing interests
The authors have no competing interests.
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