Recovery of Gold from Gold Plating Industry Wastewater Using an Agricultural Waste: Hard Shell of Apricot Stones
Document Type: Full article
Abstract
Activated carbons are extremely versatile adsorbents for major industrial significance,especially for metal ions recovery from wastewaters. In this study, the activated carbonprepared from the hard shell of apricot stones, an agricultural solid, which was usedfor the gold recovery from gold-plating wastewater is investigated. Activated carbonwas produced by chemical activation with phosphoric acid. Recovery parameters suchas adsorbent dose, the particle size of the activated adsorbent, pH and the agitationspeed of mixing were studied. The equilibrium data fit well with the Freundlichisotherm model. A Langmuir isotherm model has been used to obtain thermodynamicparameters. The results showed that under the optimum operating conditions, morethan 98 per cent of the gold was recovered by activated carbon after only 3 hours. Itwas found that the activated hard shell of apricot stones could be used as an effectiveadsorbent for gold recovery from wastewaters.
(2007). Recovery of Gold from Gold Plating Industry Wastewater Using an Agricultural Waste: Hard Shell of Apricot Stones. Iranian Journal of Chemical Engineering(IJChE), 4(1), 21-35.
MLA
. "Recovery of Gold from Gold Plating Industry Wastewater Using an Agricultural Waste: Hard Shell of Apricot Stones". Iranian Journal of Chemical Engineering(IJChE), 4, 1, 2007, 21-35.
HARVARD
(2007). 'Recovery of Gold from Gold Plating Industry Wastewater Using an Agricultural Waste: Hard Shell of Apricot Stones', Iranian Journal of Chemical Engineering(IJChE), 4(1), pp. 21-35.
VANCOUVER
Recovery of Gold from Gold Plating Industry Wastewater Using an Agricultural Waste: Hard Shell of Apricot Stones. Iranian Journal of Chemical Engineering(IJChE), 2007; 4(1): 21-35.
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