Department of Civil Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India.
Department of Studies in Microbiology, University of Mysore, Mysuru, Karnataka, India.
PLoS One. 2021 Mar 30;16(3):e0243444. doi: 10.1371/journal.pone.0243444. eCollection 2021.
A novel isolated strain Acidithiobacillus ferrooxidans BMSNITK17 has been investigated for its bioleaching potential from lateritic soil and the results are presented. System conditions like pH, feed mineral particle size, pulp density, temperature, rotor speed influences bioleaching potential of Acidithiobcillus ferrooxidans BMSNITK17 in leaching out iron from laterite soil. Effect of sulfate addition on bioleaching efficiency is studied. The bioleached laterite iron (BLFe's) on evaluation for its catalytic role in Fenton's oxidation for the degradation of ametryn and dicamba exhibits 94.24% of ametryn degradation and 92.45% of dicamba degradation efficiency. Fenton's oxidation performed well with the acidic pH 3. The study confirms the role of Acidithiobacillus ferrooxidans in leaching iron from lateritic ore and the usage of bioleached lateritic iron as catalyst in the Fenton's Oxidation.
一种新型的嗜酸氧化亚铁硫杆菌（Acidithiobacillus ferrooxidans）BMSNITK17 菌株被用于从红土中浸出铁的生物浸出潜力的研究，并呈现了研究结果。系统条件如 pH 值、给矿粒度、矿浆密度、温度、转子速度等都会影响嗜酸氧化亚铁硫杆菌（Acidithiobacillus ferrooxidans）BMSNITK17 从红土中浸出铁的生物浸出潜力。还研究了硫酸盐添加对生物浸出效率的影响。评价生物浸出红土铁（BLFe）在芬顿氧化降解莠去津和二甲四氯中的催化作用，显示出 94.24%的莠去津降解效率和 92.45%的二甲四氯降解效率。芬顿氧化在酸性 pH 值 3 时表现良好。该研究证实了嗜酸氧化亚铁硫杆菌在从红土矿石中浸出铁以及将生物浸出红土铁用作芬顿氧化催化剂方面的作用。
