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Conversion of agricultural residues into activated carbons for water purification: Application to arsenate removal.
MedLine Citation:
PMID:  22506710     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The conversion of two agricultural wastes, sugar beet pulp and peanut hulls, into sustainable activated carbons is presented and their potential application for the treatment of arsenate solution is investigated. A direct and physical activation is selected as well as a simple chemical treatment of the adsorbents. The material properties, such as BET surface areas, porous volumes, elemental analysis, ash contents and pH(PZC), of these alternative carbonaceous porous materials are determined and compared with a commercial granular activated carbon. An adsorption study based on experimental kinetic and equilibrium data is conducted in a batch reactor and completed by the use of different models (intraparticle diffusion, pseudo-second-order, Langmuir and Freundlich) and by isotherms carried out in natural waters. It is thus demonstrated that sugar beet pulp and peanut hulls are good precursors to obtain activated carbons for arsenate removal.
Authors:
Jonatan Torres-Perez; Claire Gerente; Yves Andres
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering     Volume:  47     ISSN:  1532-4117     ISO Abbreviation:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-04-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812551     Medline TA:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Country:  England    
Other Details:
Languages:  eng     Pagination:  1173-85     Citation Subset:  IM    
Affiliation:
a Centro Interamericano de Recursos del Agua, Facultad de Ingeniería , Universidad Autónoma del Estado de México, Cerro de Coatepec, Ciudad Universitaria , Toluca , Estado de México , México.
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