Experimental development and testing of an in situ technology to reduce the acidity of AMD-laden groundwater in the aquifer | Entwicklung und Erprobung eines Verfahrens zur Untergrundentsäuerung von Kippengrundwässern
2006
Schöpke, Ralph | Koch, Roland | Mangold, Sylke | Preuss, Volker | Regel, Ralf | Striemann, Angelika
Sulfate-reducing processes were initiated in an aquifer with AMD-laden groundwater orthogonally to the located main groundwater flow direction. Groundwater was intermittently circulated between two wells. Substrate (methanol) and nutrients were added to this flow. After one year a sulphate-reducing reactor was formed in the aquifer, that precipitated FeS and decreased the acidity. These effects could still be observed one year after cessation of substrate amendment.
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