Use of Granular Activated Carbon Columns for Lead Removal

Reed, Brian E.; Arunachalam, Selvam

doi:10.1061/(asce)0733-9372(1994)120:2(416)

Cited by 78 publications

(30 citation statements)

References 10 publications

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“…These values decreased to 20 and 40% upon lowering the pH to 3.0. This behaviour was also observed by Reed and Arunachalam (1994) and Kapoor et al (1999), using activated carbon and the fungus Aspergillus niger as adsorbents, respectively. In the pH range of 4.0-6.0, the removal capacity remains approximately constant.…”

Section: Effect Of the Initial Phsupporting

confidence: 66%

Kinetic modelling of cadmium and lead removal by aquatic mosses

Martins

Vilar

Boaventura

2014

Braz. J. Chem. Eng.

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-Because biosorption is a low cost and effective method for treating metal-bearing wastewaters, understanding the process kinetics is relevant for design purposes. In the present study, the performance of the aquatic moss Fontinalis antipyretica for removing cadmium and lead from simulated wastewaters has been evaluated. Five kinetic models (first-order, pseudo-first-order, Elovich, modified Ritchie second-order and pseudo-second-order) were fitted to the experimental data and compared. Previously, the effect of parameters such as the initial solution pH, contact time, and initial metal ion concentration on biosorption was investigated. The initial pH of the solution was found to have an optimum value in the range of 4.0-6.0. The equilibrium sorption capacity of cadmium and lead by Fontinalis antipyretica increased with the initial metal concentration. For an initial metal concentration of 10 mg L -1 , the uptake capacity of the moss, at equilibrium, is the same for both metals (4.8 mg g -1 ). Nevertheless, when the initial concentration increases up to 100 mg L -1 , the uptake of Pb(II) was higher than 78%. The pseudo-second order biosorption kinetics provided the better correlation with the experimental data 2 ( 0.999) ≥ R .

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Section: Effect Of the Initial Phsupporting

confidence: 66%

Kinetic modelling of cadmium and lead removal by aquatic mosses

Martins

Vilar

Boaventura

2014

Braz. J. Chem. Eng.

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“…Reed and Arunachalam have shown that Pb 2+ is adsorbed at a rate of 30 mg/g activated carbon [33] whereas the ion removal capacity for Zn 2+ is between 9.9 mg/g [35] and 18 mg/g [34]. Based on the adsorption isotherms in Fig.…”

Section: Discussionmentioning

confidence: 98%

Ion adsorption behaviour of hydroxyapatite with different crystallinities

Stötzel

Müller

Reinert

et al. 2009

Colloids and Surfaces B: Biointerfaces

153

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“…This material may be used either as such or with the surface modified chemically to enhance its adsorption capacity for metallic ions such as Pb 2þ ion in aqueous solution [3][4][5][6][7][8][9][10][11][12][13]. In previous reports, an account was given of the introduction of sulfur in activated carbon [14] and of the ability of resultant products to adsorb Hg 2þ [14], Pb 2þ [15], Cd 2þ [16], or the three ions [17] from aqueous solution.…”

Section: Introductionmentioning

confidence: 99%