Title
Adsorption of as(V), Cd(II) and Pb(II), in multicomponent aqueous systems using activated carbons
Date Issued
2017
Access level
restricted access
Resource Type
journal article
Author(s)
Pirila M.
Ainassaari K.
Matejova L.
Keiski R.L.
Publisher(s)
John Wiley and Sons Inc.
Abstract
This paper studies the use of two activated carbon samples made of cocoa pod husk (CPH-AC) and one commercial activated carbon sample in the adsorption of As(V), Cd(II) and Pb(II) from multicomponent synthetic solutions and from the Puyango-Tumbes River water, a river located in northwest Peru. The characterization of the activated carbon samples was conducted. The CPH-AC samples exhibited a specific surface area (SBET) between 709 and 1117 m2/g and a pH point of zero charge (pHPZC) between 4.4 ± 0.2 and 5 ± 0.2, while the commercial material gave an SBET value of 775 m2/g and a pHPZC value of 7.6 ± 0.1. All the evaluated samples displayed the capacity to adsorb As(V), Cd(II) and Pb(II) from both aqueous systems. The adsorption efficiency for Pb was outstanding reaching the value of 89%. A pseudo-second order kinetic model was satisfactorily applied for most of the activated carbon samples.
Start page
846
End page
855
Volume
89
Issue
9
Number
6
Language
English
Scopus EID
2-s2.0-85028772468
PubMed ID
Source
Water Environment Research
ISSN of the container
1061-4303
Sponsor(s)
The project CIMO North-South-South ‘‘PROENV2’’, the AdMAtU–project (AKVA Program) financed by the Academy of Finland, and HYMEPRO financed by the Finnish Funding Agency for Innovation (Tekes) are acknowledged for the financial support. The National University of Tumbes (Proyecto Canon – Resolución N° 0722-2014/UNT-R) and the Peruvian National Council for Science and Technology (CONCYTEC) (Proyecto. No. 002/PE/2012) are gratefully recognized for their support. The authors also want to thank their home universities for their support.
Sources of information:
Directorio de Producción Científica