Optimization of Adsorption Conditions of Cr (VI) by PEI Modified BSG Using Response Surface Methodology

Xin-Long Jiang ； Zheng-Yu Ma ； Yi-Hua Jiang ； Kun-Wei Duan

《Advance Journal of Food Science and Technology》 7卷3期 (2015/02) Pp. 159-163

並列摘要

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.

並列關鍵字

Adsorption conditions ； Cr (VI) ； modified brewer's grains (BSG) ； response surface methodology