Removal of copper from aqueous solutions by waste biomass of saccharomyces cerevisiae
Put dead immobilized saccharomyces cerevisiae biomass into column of continuous upflowing reactor. Study the influence of temperature, quantity of saccharomyces cerevisiae in column and initial Cu2+ concentration on Cu2+ adsorption. Determine optimal operating parameters of initial pH values, flow rates and quantities of saccharomyces cerevisiae in column through orthogonal experiment. Analyse adsorption mechanisms on Cu2+ by saccharomyces cerevisiae powder through SEM. The results show optimal conditions are normal temperature, quantity of saccharomyces cerevisiae in column 80 g/L and initial Cu2+ concentration 20 mg/L. The orthogonal experiment indicates that the optimal test condition was initial pH value 6, flow rate 5 mL/min, quantity of saccharomyces cerevisiae in column 80 g/L. SEM figures indicate that inorganic precipitation mechanism and redox mechanism might work in the process, and that the cell wall plays an important role in Cu2+ adsorption.
continuous upflowing reactor saccharomyces cerevisiae dynamic adsorption Cu2+ orthogonal ezperiment adsorption mechanism
Chunhui Fan Zhuo Diao Yingchao Zhang Dongfang Meng Ying Zhang Xiuyun Qi Lixiang Zhang
School of Resource & Environment Northeast Agricultural University Harbin 150030,China Harbin Environment Protection Industry Office Harbin 150076,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）