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Geochemical transformations and modeling of two deep-well injected hazardous wastes

William R. Roy·B. Seyler·J.D. Steele·S.C. Mravik·D.M. Moore·I.G. Krapac·J.M. Peden·R. A. Griffin
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Abstract

Two liquid hazardous wastes (an alkaline brine-like solution and a dilute acidic waste) were mixed with finely ground rock samples of three injection-related lithologies (sandstone, dolomite, and siltstone) for 155 to 230 days at 325°K-10.8 MPa. The pH and inorganic chemical composition of the alkaline waste were not significantly altered by any of the rock samples after 230 days of mixing. The acidic waste was neutralized as a consequence of carbonate dissolution, ion exchange, or clay-mineral dissolution, and hence was transformed into a nonhazardous waste.

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William R. Roy, B. Seyler, J.D. Steele, S.C. Mravik, D.M. Moore, I.G. Krapac, J.M. Peden, R. A. Griffin. 2005-08-04. Geochemical transformations and modeling of two deep-well injected hazardous wastes. https://doi.org/10.1111/j.1745-6584.1991.tb00558.x

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