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AbstractAdsorption/desorption and oxidation/reduction of arsenic at clay surfaces are very important to the natural attenuation of arsenic in the subsurface environment. Although numerous studies have concluded that iron oxides have high affinities for the adsorption of As(V), very little experimental work has addressed the arsenic attenuation capacities of different clay minerals and aging process...
AbstractWastes from the sulfuric acid industry are an environmental concern, because of the emission of acids, heavy metals, and sulfate to the environment. The wastes in Falun consist of 7080% iron oxides, 1020% silicates, less than 10% residual sulfides, and small amounts of secondary precipitates (iron hydroxides and Fe-, Zn- and Cu-sulfates). Due to the different behavior of sulfides during the...
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