Producing adsorbents from sewage sludge and discarded tyres Characterization and utilization for the removal of pollutants from water

Adsorbent materials have been produced from sewage sludge and discarded tyres. Their physical structures and chemical surfaces differ according to their origin and production process. However, all the activated carbons show a good development of their mesopore structure. The adsorption equilibriums...

Full description

Saved in:
Bibliographic Details
Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2005-11, Vol.114 (1-3), p.161-169
Main Authors: ROZADA, F, OTERO, M, PARRA, J. B, MORAN, A, GARCIA, A. I
Format: Article
Language:English
Subjects:
Adsorption
Applied sciences
Chemical engineering
Exact sciences and technology
Other industrial wastes. Sewage sludge
Pollution
Wastes
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Adsorbent materials have been produced from sewage sludge and discarded tyres. Their physical structures and chemical surfaces differ according to their origin and production process. However, all the activated carbons show a good development of their mesopore structure. The adsorption equilibriums of methylene blue and sandolan brilliant red N-BG 125 (an industrial dye) onto the activated carbons generated have been analysed and described in terms of Freundlich isotherm. The best adsorption results were those corresponding to sandolan brilliant red onto the adsorbent obtained from sludge chemically activated with ZnCl sub(2). The effect of temperature on the dyes adsorption was addressed and the thermodynamic parameters ( Delta H, Delta S and Delta G) were determined for each of the studied systems. It was found that the process was endothermic and spontaneous in all cases.
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2005.08.019