Field Results from an Anaerobic Constructed-Wetland System Used to Demonstrate Remediation of ARD from a Coal Storage Facility
Organization: Society for Mining, Metallurgy & Exploration
Jan 1, 2000
Two separate constructed treatment wetland (CTW) systems receiving the same metal contaminated, acid sulfate water over different lengths of time and at different rates were evaluated for metal attenuation. Both wetlands are the alkalinity generator portion of a succesive alkalinity producing system (SAPS). Sequential extractions are employed to determine phases of metal removal. Results indicate that Fe, Al, Zn, Ni. and Cu accumulate in the organic substrate over time. Manganese accumulates initially, but is not retained in the system over time.