Elective culture of bacteria used in bioleaching on pyrrhotite

来源期刊：中国有色金属学报(英文版)2003年第1期

论文作者：邱冠周 覃文庆 蓝卓越 黎维中

文章页码：175 - 179

Key words：pyrrhotite; elective culture; bioleaching; marmatite

Abstract: Elective culture of bacteria on pyrrhotite was researched, and the selected bacteria were tested on bioleaching of marmatite and zinc sulfide ore. The results show that the microorganism cultured on pyrrhotite with various S/Fe ratios is a mixed culture of thiobacillus ferrooxidans and thiobacillus thiooxidans, of which the integral activity and the oxidation capability of Fe²⁺ and S are enhanced. With the high Fe and low S content of pyrrhotite, the oxidation capacity of ferrous ion is improved; on the contrary, the oxidation capacity of sulfur is advanced. The bioleaching capacity of bacteria cultured on marmatite is better than that of the bacteria cultivated by conventional methods.