Academic journal article Iranian Journal of Public Health

BIOLEACHING OF MANGANESE FROM STONE WHICH CONTAINS PYROLUSITE THROUGH NATIVE MICROBIAL STRAINS IN Iran

Academic journal article Iranian Journal of Public Health

BIOLEACHING OF MANGANESE FROM STONE WHICH CONTAINS PYROLUSITE THROUGH NATIVE MICROBIAL STRAINS IN Iran

Article excerpt

Background: Bioleaching of manganese is an industrial method for its recovery from stone which contains pyrolusite (Mno2). In this method, the host minerals are analyzed and revived by certain bacteria. The present research has been done in Iran, for the first time, to study the bioleaching of manganese from stone which contains pyrolusite.

Methods: Different samples of soil & water were collected from different mines of manganese in different regions of Ian. LB medium and Brunner were used to isolate and enrich microorganisms, and then the action of purifying and identi- fying grown microorganisms performed through biochemical methods. The bioleaching of manganese was done in flask during 30 days, under the best conditions of temperature, aeration and the diameter or thickness of articles in order to select the best conditions and the highest strain. The amount of revived manganese was measured by two methods of spectrophotometric and titration.

Results: In the present research, 13 bacteria which revived manganese were isolated including Bacillus, micrococcus, Coryne- bacterium, Staphylococcus, Serratia, Lactobacillus, and Enterobacter from CheshmeKabud mine in Kermansah. …

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