Removal of the Heavy Metal Ion Cr(Ⅵ) by Soybean Hulls in Dyehouse Wastewater Treatment
Preparation and properties of soybean hulls are studied.The efficiency of removal of chromium ions from aqueous solutions is investigated by means of soybean hulls.The experimental results show that the quality of the dyehouse treated wastewater can attain to the national requirements of the first grade of integrated wastewater discharge standard (GB 8978 - 1996).The experimental results indicate that the initial concentration of metal ions,pH solutions,contact time,soybean hulls of different molecular weight can affect the removal efficiencies of heavy metal ions.With soybean hulls of 2g/L for 20 minutes,the removal rate of Cr(Ⅵ) was 91.991％ at 30℃,pH=2～3.Desorption rate of Cr(Ⅵ)was 95.01％,which made soybean hulls could be used repeatedly.Soybean hulls were safe and environmentally-friendly natural products.The treating system is convenient managed and reliable operated.
soybean hulls heavy metal ions adsorptive property
Ye Shengquan Guo Siyuan Yu Yigang Wu Hui Han Rui
College of Food Science and Technology, Guangdong Ocean University,P.O. Box 302, Hai Ning Road, No. School of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, C
国内会议
青岛
英文
507-513
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）