当前位置: X-MOL 学术Bull. Environ. Contam. Toxicol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Study on the Role of Quartz in the Bio-Oxidation of Sulfide Minerals From Mine Solid Waste
Bulletin of Environmental Contamination and Toxicology ( IF 2.7 ) Pub Date : 2021-09-18 , DOI: 10.1007/s00128-021-03313-5
Liuqing Li 1 , Senlin Tian 1 , Ying Li 1 , Jiayao Li 1 , Jianhong Huang 1 , Xuewei Hu 1
Affiliation  

Sulfide-containing mine waste was oxidized to produce acid mine drainage, which lead to acidification of surrounding soil and downstream rivers and posed a threat to the surrounding environment. Quartz often coexists with sulfide minerals and affects the oxidation of sulfide minerals. In order to explore the role of quartz in the bio-oxidation of sulfide minerals in mine solid waste, the mixed minerals of quartz and sulfide minerals were bio-oxidized by Acidithiobacillus ferrooxidans. The results showed that quartz could improve the microbial activity and increase the acid production of sulfide minerals. The larger the proportion of quartz in bio-oxidation of sulfide minerals, the less the production of secondary minerals such as jarosite, and the larger the leaching amount of iron and sulfate. This research provides new ideas for speeding up the bio-oxidation of sulfide mineral to remove iron and sulfate. It provides a new way to solve acid pollution caused by oxidation of sulfide minerals.



中文翻译:

石英在矿山固体废物硫化矿物生物氧化中的作用研究

含硫化物矿山废弃物被氧化产生酸性矿山排水,导致周边土壤和下游河流酸化,对周边环境构成威胁。石英常与硫化矿物共存,影响硫化矿物的氧化。为探究石英在矿山固废中硫化物矿物生物氧化中的作用,采用氧化亚铁硫杆菌对石英与硫化物矿物的混合矿物进行生物氧化. 结果表明,石英可以提高微生物活性,增加硫化矿物的产酸量。硫化矿物生物氧化中石英的比例越大,黄钾铁矾等次生矿物的产生越少,铁和硫酸盐的浸出量越大。该研究为加快硫化物矿物的生物氧化去除铁和硫酸盐提供了新的思路。为解决硫化物矿物氧化引起的酸污染提供了新途径。

更新日期:2021-09-19
down
wechat
bug