Environmental oxidation rate of manganese(II): bacterial catalysis

Details Environmental oxidation rate of manganese(II): bacterial catalysis Environmental oxidation rate of manganese(II): bacterial catalysis

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46.1073e&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 46, Issue 6, pp.1073-1079

Physics

10

Scientific paper

A simple mass balance for dissolved manganese(II) in waters containing low levels of oxygen in Saanich Inlet indicates that the residence time for Mn(II) removal to the solid phase is on the order of a few days. The average oxidation state of Mn in particulate material sampled from the region of Mn removal was 2.3-2.7, and electron micrographs revealed structures characteristic of bacterially formed Mn precipitates. Radiotracer experiments utilizing 54 Mn(II) indicated that removal of Mn from solution in the region of active uptake was substantially blocked by a poison mixture, demonstrating that Mn(II) binding to particulates is catalyzed by bacteria in this environment.

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