Research Article | OPEN ACCESS
Optimization of Adsorption Conditions of Cr(VI) by Amine Surfactant Modified Brewer's Grains in Food Industry using Orthogonal Test
1Xinlong Jiang, 2Zhengyu Ma and 3Yihua Jiang
1Institute of Food and Fermentation Engineering, Zhejiang Shuren University Hangzhou
2Zhejiang NADE Scientific Instrument CO., Ltd., Hangzhou 310011
3College of Biology and Environment, Zhejiang Shuren University, Hangzhou 310015, China
Advance Journal of Food Science and Technology 2016 3:236-241
Received: August ‎10, ‎2015 | Accepted: September ‎3, ‎2015 | Published: May 25, 2016
Abstract
Orthogonal experiment optimization of adsorption conditions with the factors of pH value, adsorption time, adsorbent amount of Cr(VI) wastewater by amine surfactant Modified Brewer's Grains (MBSG) in food industry were studied. The results showed that optimum adsorption conditions were as follows: 100 mL Cr(VI) ions solution of 250 mg/L, adding 2.0 g/L brewer's grains of 60~80 mesh and adsorbed for 1.0 h, adsorbent temperature 30°C, pH 3.0. Under the optimal conditions, the maximal absorption rate got 90.18% and adsorption capacity was 111.95 mg/g. The modified MBSG is a promising, cheap, efficient, new biological materials of adsorption for Cr(VI) in wastewater.
Keywords:
Adsorption conditions, Cr(VI), Modified Brewer's Grains (MBSG), orthogonal experiment,
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