Microbial Communities Associated With Passive Acidic Abandoned Coal Mine Remediation

Profiling microbial communities in manganese remediation systems treating coal mine

Profiling microbial communities in manganese remediation systems treating coal mine 1 drainage 2 3 4 Dominique L. Chaput, Colleen M. Hansel, William D. Burgos, Cara M. Santelli# 5 6 Department of Mineral Sciences, National Museum of Natural History, Smithsonian 7 Institution, Washington, District of Columbia, USA; Department of Marine Chemistry 8 and Geochemistry, Woods Hole Oceanographic Insti...

Profiling microbial communities in manganese remediation systems treating coal mine drainage.

Water discharging from abandoned coal mines can contain extremely high manganese levels. Removing this metal is an ongoing challenge. Passive Mn(II) removal beds (MRBs) contain microorganisms that oxidize soluble Mn(II) to insoluble Mn(III/IV) minerals, but system performance is unpredictable. Using amplicon pyrosequencing, we profiled the bacterial, fungal, algal, and archaeal communities in f...

Profiling microbial communities in manganese remediation systems treating coal mine 1 drainage

The microbiology of passive remediation technologies for mine drainage treatment

Water draining abandoned mines or mine sites is often acidic and contains relatively high concentrations of dissolved metals and sulfate. Such water (AMD) arises from the oxidative dissolution of sulfidic minerals, such as iron pyrite (FeS2), exposed by mining activities. As AMD production can occur over a very long time scale, passive remediation systems are becoming increasingly important in ...

Evolution of Microbial “Streamer” Growths in an Acidic, Metal-Contaminated Stream Draining an Abandoned Underground Copper Mine

A nine year study was carried out on the evolution of macroscopic "acid streamer" growths in acidic, metal-rich mine water from the point of construction of a new channel to drain an abandoned underground copper mine. The new channel became rapidly colonized by acidophilic bacteria: two species of autotrophic iron-oxidizers (Acidithiobacillus ferrivorans and "Ferrovum myxofaciens") and a hetero...