Journal
SEPARATION SCIENCE AND TECHNOLOGY
Volume 41, Issue 3, Pages 531-547Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01496390500524966
Keywords
beach sand; Pb(II) ions; sorption; sorption isotherms; kinetics; thermodynamics
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Beach sand is used to remove traces of Pb(II) ions from aqueous solutions. Effect of shaking speed, amount of sorbent, shaking time, nature and concentration of different electrolytes and deionized water along with buffer of pH 2345678910 have been studied. Maximum sorption of Pb(II) ions (> 94%) is achieved from 10(-4) M HNO 3 . Sorption data have been tested using Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) sorption isotherms. Thermodynamic parameters such as Delta H, Delta S, and Delta G have been evaluated. Kinetics of sorption is followed by Morris- Weber, Reichenberg and Lagergren equations. Influence of diverse ions on the sorption of Pb(II) ions is also investigated.
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