Modified crab shell particles for the removal of lead[II] ions from aqueous solutions
by Ramalingham Senthilkumar; Josephraj Jegan; Puthugramam Venkitakrishnan Ramachandra Iyer; Manickam Velan
International Journal of Environment and Waste Management (IJEWM), Vol. 9, No. 3/4, 2012

Abstract: The ability of crab shell particles to remove lead[II] was evaluated in a batch reactor and in a fixed-bed column. The binding of lead[II] by crab shell was found to be affected significantly by pH, with maximum sorption capacity 714 mg/g observed at pH 4. The sorption isotherm of lead[II] on crab shell particles was modelled by the application of Langmuir followed by Sips, Redlich-Peterson and Freundlich. The kinetic data followed pseudo-second-order kinetics. A glass column (2 cm I.D and 35 cm height) was used to study the continuous lead[II] biosorption performance of crab shell particles with different bed heights.

Online publication date: Sat, 13-Dec-2014

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