BibTeX
@MISC{Adams_1the,
author = {D. Jack Adams},
title = {1 THE ROLE OF MICROORGANISMS IN ACID ROCK DRAINAGE},
year = {}
}
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Abstract
Microorganisms are directly or indirectly involved in many chemical alterations and in the decomposition of minerals required for their growth. Microbial dissolution of sulfide minerals under acidic conditions can produce over 1,000 times more Acid Rock Drainage (ARD) than chemical action alone. Microbial actions can cause precipitation of minerals, adsorption or release of metals, and formation/destruction of organic-metallic complexes. Soluble minerals can serve as oxidizing substrates, electron donors/acceptors in redox reactions, and can be directly involved in cell metabolism. Microorganisms and microbial oxidation-reduction reactions and their contribution to mineral mobilization and stabilization will be discussed.
Keyphrases
role microorganism acid rock drainage acidic condition microbial dissolution organic-metallic complex cell metabolism electron donor acceptor mineral mobilization microbial action sulfide mineral formation destruction redox reaction chemical action acid rock drainage microbial oxidation-reduction reaction many chemical alteration soluble mineral
