Removal of dissolved heavy metals form acid rock drainage using iron metal
Article Abstract:
The microbial and chemical activity of corroding iron metal is examined in the acid rock drainage (ARD) resulting from pyrite oxidation to determine the effectiveness in neutralizing the ARD, and reducing the load of dissolved heavy metals. Berkeley Pit, MT ARD is treated with iron in batch reactors and columns containing iron granules. An increase in pH and decrease in redox potential results when iron is treated in acidic solution, hydrolyzing water and producing hyroxide and hydride ion. Sseveral mechanisms are utilized to remove the dissolved metals.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1999
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Modeling the removal of uranium U(VI) from aqueous solutions in the presence of sulfate reducing bacteria
Article Abstract:
Researchers from the Colorado School of Mines studied the reduction kinetics of uranium (VI) to uranium(IV) by two cultures of sulfate-reducing bacteria (SRB) and a pure culture of Desulfovibrio desulfuricans. The data will be used to design an SRB dominated bioreactor for the removal of uranium in aqueous solutions.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1999
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