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Feasibility of calcium peroxide as an oxygen releasing compound in treatment walls
by Lizette Chevalier, Charles D. McCann
International Journal of Environment and Waste Management (IJEWM), Vol. 2, No. 3, 2008


Abstract: This research investigates the use of a proprietary formulation of calcium peroxide as an oxygen releasing compound in a treatment wall. Laboratory scale column studies evaluated the release of oxygen and the permeability effects resulting from a mixture of the calcium peroxide and a representative aquifer sand (40-mesh Unimin sand). Influent water was prepared at an average dissolved oxygen concentration of 3.1 mg/L and pumped into the treatment wall soil at a constant rate of 0.17 cm³/s to simulate ground water dissolved oxygen and flow conditions. The average changes in relative permeability for mixtures of 0.1%, 0.5% and 1.0% calcium peroxide by weight were 65.6%, 66.1% and 77.1%, respectively. The peak dissolved oxygen levels in the same mixtures were 5.9, 7.40, and 10.7 mg/L, respectively.

Online publication date: Tue, 13-May-2008


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