摘要
以紫金山铜矿的浸出液为提取嗜酸氧化亚铁硫杆菌的母液,进行了菌株的分离纯化和生理特征鉴定,对所提取的EPS的性质及组分进行了分析、检测,在添加Fe3+及菌株与否、菌株失活与否、EPS脱离菌活体细胞与否等6组组合条件下,研究了紫金山铜矿样浸矿过程中氧化还原电位变化的规律,并逐一揭示了这些规律形成的原因,研究表明,EPS对金属硫化矿的浸矿作用离不开分泌它的活体细胞。
The leaching solution of Zijinshan Copper Mine is adopted as the mother liquor to extract the Acidithiobacillus ferrooxidans to identify the purification and physiological features of bacterial strains.Then the nature of the extracted EPS and its fractions are analyzed and surveyed.Under 6 group combining conditions with addition of Fe3＋ and the strain or not,deactivation of the strains or not,EPS separating from living cells or not,the law of potential variation of oxidization and reduction in leaching process of Zijinshan copper samples are investigated.Then the reasons for reforming this law are revealed one by one.The studies show that the leaching of EPS to the metallic sulfide ore can not do without its secreted living cells.
出处
《金属矿山》
CAS
北大核心
2011年第7期86-89,97,共5页
Metal Mine
基金
国家重点基础研究发展计划(973计划)项目(编号:2004CB619206)
