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The removal of Hg from aquatic environments using activated carbon (AC) impregnated with humic acid was investigated. The Hg adsorption capacity of the AC was controlled by the specific surface area and by surface functional groups, and the Hg adsorption process was exothermic and more effective at low pH. The Hg adsorption process in this study corresponds to a Lagergren pseudo-2nd-order model, indicating...
Mercury adsorption by sulfur impregnated adsorbents seems to be one of the most efficient ways for removal of this toxic metal ion from wastewater and atmosphere. The aim of this work was to develop a method for preparation of low-cost sulfurized adsorbent from agricultural wastes; this approach combines two stages of (i) chemical activation with phosphoric acid and (ii) impregnation with powdered...
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