Bioleaching of iron from laterite soil using an isolated Acidithiobacillus ferrooxidans strain and application of leached laterite iron as Fenton’s catalyst in selective herbicide degradation
No Thumbnail Available
Date
2021
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Public Library of Science
Abstract
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. © 2021 S et al.
Description
Keywords
ametryn, dicamba, ferric ion, ferrous ion, herbicide, iron, sulfate, Fenton's reagent, hydrogen peroxide, mineral, Acidithiobacillus ferrooxidans, Article, bacterial strain, bacterium isolate, bioleaching, catalysis, controlled study, degradation, environmental temperature, Fenton reaction, mineral metabolism, nonhuman, oxidation reduction potential, particle size, pH, precipitation, soil analysis, Acidithiobacillus, bioremediation, chemistry, metabolism, oxidation reduction reaction, soil, temperature, Biodegradation, Environmental, Catalysis, Herbicides, Hydrogen Peroxide, Hydrogen-Ion Concentration, Iron, Minerals, Oxidation-Reduction, Particle Size, Soil, Sulfates, Temperature
Citation
PLOS ONE, 2021, 16, 46084, pp. -