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Removal of mercury from aqueous solutions using activated carbon prepared from agricultural by-product/waste.
J Environ Manage. 2009 Jan; 90(1):634-43.JE

Abstract

Removal of mercury from aqueous solutions using activated carbon prepared from Ceiba pentandra hulls, Phaseolus aureus hulls and Cicer arietinum waste was investigated. The influence of various parameters such as effect of pH, contact time, initial metal ion concentration and adsorbent dose for the removal of mercury was studied using a batch process. The experiments demonstrated that the adsorption process corresponds to the pseudo-second-order-kinetic models and the equilibrium adsorption data fit the Freundlich isotherm model well. The prepared adsorbents ACCPH, ACPAH and ACCAW had removal capacities of 25.88 mg/g, 23.66 mg/g and 22.88 mg/g, respectively, at an initial Hg(II) concentration of 40 mg/L. The order of Hg(II) removal capacities of these three adsorbents was ACCPH>ACPAH>ACCAW. The adsorption behavior of the activated carbon is explained on the basis of its chemical nature. The feasibility of regeneration of spent activated carbon adsorbents for recovery of Hg(II) and reuse of the adsorbent was determined using HCl solution.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Rao MM
Analytical and Environmental Chemistry Division, Department of Chemistry, Sri Venkateswara University, Tirupati 517 502, AP, India.
Reddy DH
No affiliation info available
Venkateswarlu P
No affiliation info available
Seshaiah K
No affiliation info available

MeSH

AdsorptionAgricultureCeibaCharcoalCicerIndustrial WasteKineticsMercuryPhaseolusSolutionsSpectroscopy, Fourier Transform InfraredWaste Disposal, FluidWater Microbiology

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18313830

Citation

Rao, M Madhava, et al. "Removal of Mercury From Aqueous Solutions Using Activated Carbon Prepared From Agricultural By-product/waste." Journal of Environmental Management, vol. 90, no. 1, 2009, pp. 634-43.
Rao MM, Reddy DH, Venkateswarlu P, et al. Removal of mercury from aqueous solutions using activated carbon prepared from agricultural by-product/waste. J Environ Manage. 2009;90(1):634-43.
Rao, M. M., Reddy, D. H., Venkateswarlu, P., & Seshaiah, K. (2009). Removal of mercury from aqueous solutions using activated carbon prepared from agricultural by-product/waste. Journal of Environmental Management, 90(1), 634-43. https://doi.org/10.1016/j.jenvman.2007.12.019
Rao MM, et al. Removal of Mercury From Aqueous Solutions Using Activated Carbon Prepared From Agricultural By-product/waste. J Environ Manage. 2009;90(1):634-43. PubMed PMID: 18313830.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Removal of mercury from aqueous solutions using activated carbon prepared from agricultural by-product/waste. AU - Rao,M Madhava, AU - Reddy,D H K Kumar, AU - Venkateswarlu,Padala, AU - Seshaiah,K, Y1 - 2008/03/03/ PY - 2007/04/19/received PY - 2007/12/07/revised PY - 2007/12/23/accepted PY - 2008/3/4/pubmed PY - 2009/2/27/medline PY - 2008/3/4/entrez SP - 634 EP - 43 JF - Journal of environmental management JO - J Environ Manage VL - 90 IS - 1 N2 - Removal of mercury from aqueous solutions using activated carbon prepared from Ceiba pentandra hulls, Phaseolus aureus hulls and Cicer arietinum waste was investigated. The influence of various parameters such as effect of pH, contact time, initial metal ion concentration and adsorbent dose for the removal of mercury was studied using a batch process. The experiments demonstrated that the adsorption process corresponds to the pseudo-second-order-kinetic models and the equilibrium adsorption data fit the Freundlich isotherm model well. The prepared adsorbents ACCPH, ACPAH and ACCAW had removal capacities of 25.88 mg/g, 23.66 mg/g and 22.88 mg/g, respectively, at an initial Hg(II) concentration of 40 mg/L. The order of Hg(II) removal capacities of these three adsorbents was ACCPH>ACPAH>ACCAW. The adsorption behavior of the activated carbon is explained on the basis of its chemical nature. The feasibility of regeneration of spent activated carbon adsorbents for recovery of Hg(II) and reuse of the adsorbent was determined using HCl solution. SN - 0301-4797 UR - https://www.unboundmedicine.com/medline/citation/18313830/Removal_of_mercury_from_aqueous_solutions_using_activated_carbon_prepared_from_agricultural_by_product/waste_ DB - PRIME DP - Unbound Medicine ER -