Geochemical processes governing the performance of a constructed wetland treating acid mine drainage, Central Scotland
C Woulds, BT Ngwenya - Applied geochemistry, 2004 - Elsevier
Constructed wetland systems often represent a low cost means for the remediation of
dissolved metal and SO4-rich acid mine drainage. The surface water, sediment, and
porewater geochemistry of one such wetland were investigated to determine the active
geochemical processes that govern wetland performance. The influent drainage has a pH of
2.6, 200–250 mg/L of dissolved Fe, and Al, Mg, and Mn concentrations of 30–100 mg/L.
Sulphate concentrations are also high, ranging from 500–1000 mg/L. Sediment cores show …
dissolved metal and SO4-rich acid mine drainage. The surface water, sediment, and
porewater geochemistry of one such wetland were investigated to determine the active
geochemical processes that govern wetland performance. The influent drainage has a pH of
2.6, 200–250 mg/L of dissolved Fe, and Al, Mg, and Mn concentrations of 30–100 mg/L.
Sulphate concentrations are also high, ranging from 500–1000 mg/L. Sediment cores show …
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