Bench-scale microbial remediation of the model acid mine drainage: Effects of nutrients and microbes on the source bioremediation. (March 2018)

• Record Type: Journal Article
• Authors: Jing, Qiankun; Zhang, Mingjiang; Liu, Xingyu; Li, Yibin; Wang, Zining; Wen, Jiankang
• Is Part Of: International biodeterioration & biodegradation. Volume 128(2018)
• Page Start: 117
• Page End: 121
• Publication Date: 2018-03
• Subjects: Acid mine drainage -- Source control -- Bioremediation -- Sulfate reducing bacteria; Biodegradation -- Periodicals; Bioremediation -- Periodicals; Biodegradation -- Periodicals; Biodégradation -- Périodiques; Biorestauration -- Périodiques; Electronic journals; 620.11223
• DOI: 10.1016/j.ibiod.2017.01.009
• Languages: English
• ISSNs: 0964-8305

Abstract

Abstract: In this work, a bench-scale microbial remediation system was established by supplemented nutrients, sulfate reducing bacteria and iron reducing bacteria to inhibit key factors (iron oxidizing bacteria and oxidation reduction potential) during the formation of acid mine drainage. The results indicated sodium lactate could inhibit the growth of A. ferrooxidans and their ability of oxidizing ferrous ion, could alleviate but not prevent the pyrite oxidizing process. Organic nutrients prevented pyrite oxidation effectively by the adjustment of microbial community. Sulfate reducing bacteria adapted to the remediate environment and improved physicochemical index of group 1. Sulfate reducing bacteria and nutrients are the key factor for bioremediation. Highlights: Sodium lactate inhibited Acidithiobacillus ferrooxidans . Organic nutrients prevent pyrite oxidation by the adjustment of microbial community. Sulfate reducing bacteria are the main factors for bioremediation.