摘要
研究了不同Cl-浓度下含砷金精矿的细菌预氧化过程,试验结果表明:TCJ菌能够适应水源地的水质变化满足生产要求,在目前的生产条件下,TCJ菌耐受Cl-浓度的临界值是2.7 g/L;在不同的原料和浸出体系条件下,细菌对Cl-的适应性和耐受度是不同的,适宜的Cl-浓度在一定程度上有利于细菌氧化,过高的Cl-浓度会抑制细菌活性,影响预氧化效果。
The paper mainly studies the pre-oxidation process of bacteria of Arsenic-containing gold concentrates under different chloride ion concentrations.The results show that TCJ bacteria can adapt to the changes of water quality in water-head sources to meet the production requirements.On the present producing conditions,the critical value of TCJ bacterial tolerance concentration of chloride ions is 2.7 g/L.The experiment shows that the adaptability and the extent of tolerance of bacteria on C1 is different in different raw materials and leaching system.Appropriate chloride ion is conducive to bacterial oxidation to some extent, while high chloride ions will inhibit bacterial activity and affect the pre-oxidation effect.
出处
《黄金科学技术》
CSCD
2014年第4期93-98,共6页
Gold Science and Technology
关键词
微生物冶金
含砷金精矿
预氧化
细菌适应性
临界浓度值
氧化亚铁硫杆菌
microbial metallurgy
arsenic-containing gold concentrate
pre-oxidation
bacterial adaptation
critical concentration
Thiobacillus ferrooxidans
