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See more from this Session: Graduate Student Poster Competition - Soils
Sunday, February 7, 2010
Abstract
Contamination of surface, groundwater and soil with heavy metals is a public concern. The use of activated carbon in the treatment process is an effective way to treat heavy metals contaminated water and soil. The first phase of the study was to determine the efficiency of activated carbons produced from almond shells by steam and phosphoric acid activation. The physical properties (surface area, carbon hardness, percent yield and bulk density) and chemical properties (pH, conductivity and ash content) of almond shell-based carbon were determined. The second phase of the study was to verify the adsorption of the heavy metals namely, copper, lead, nickel and cadmium by the almond shell-based carbon. The steam- activated carbon was produced with two different activation temperatures (750º, 800º C) and two different Activation times (1 and 2 hrs). Also, Phosphoric acid- activated carbon was produced with two different activation temperatures (400º, 500 º C) and two different activation times (0.7, 1.4 hrs.). The data indicated that the steam and phosphoric acid activated carbons had pH of 9.81 and 6.78 respectively. The heavy metals adsorption data will be presented and discussed.
Contamination of surface, groundwater and soil with heavy metals is a public concern. The use of activated carbon in the treatment process is an effective way to treat heavy metals contaminated water and soil. The first phase of the study was to determine the efficiency of activated carbons produced from almond shells by steam and phosphoric acid activation. The physical properties (surface area, carbon hardness, percent yield and bulk density) and chemical properties (pH, conductivity and ash content) of almond shell-based carbon were determined. The second phase of the study was to verify the adsorption of the heavy metals namely, copper, lead, nickel and cadmium by the almond shell-based carbon. The steam- activated carbon was produced with two different activation temperatures (750º, 800º C) and two different Activation times (1 and 2 hrs). Also, Phosphoric acid- activated carbon was produced with two different activation temperatures (400º, 500 º C) and two different activation times (0.7, 1.4 hrs.). The data indicated that the steam and phosphoric acid activated carbons had pH of 9.81 and 6.78 respectively. The heavy metals adsorption data will be presented and discussed.