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Titolo:
LOW-TEMPERATURE THERMAL-DESORPTION OF AROMATIC-COMPOUNDS FROM ACTIVATED CARBON
Autore:
TORRENTS A; DAMERA R; HAO OJ;
Indirizzi:
UNIV MARYLAND,DEPT CIVIL ENGN COLLEGE PK MD 20742 UNIV MARYLAND,DEPT CIVIL ENGN COLLEGE PK MD 20742
Titolo Testata:
Journal of hazardous materials
fascicolo: 3, volume: 54, anno: 1997,
pagine: 141 - 153
SICI:
0304-3894(1997)54:3<141:LTOAFA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONTAMINATED SOILS; ORGANICS;
Keywords:
ACTIVATED CARBON; DESORPTION; KINETIC MODEL; LOW TEMPERATURE; REGENERATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
A. Torrents et al., "LOW-TEMPERATURE THERMAL-DESORPTION OF AROMATIC-COMPOUNDS FROM ACTIVATED CARBON", Journal of hazardous materials, 54(3), 1997, pp. 141-153

Abstract

Low-temperature thermal desorption of three aromatic compounds (toluene, chlorobenzene, and nitrobenzene) loaded on activated carbon was investigated, Desorption kinetics of these compounds followed an exponential-decay-type model assuming a distribution of sites over a range ofactivation energies. The activation energies of toluene, chlorobenzene and nitrobenzene were 17.6, 26.0, and 35.6 kJ mol(-1), correspondingto initial surface concentrations of 190, 300, and 610mg g(-1), respectively, The desorption parameters determined using a simplified modelpredicted the aqueous phase adsorption of toluene and nitrobenzene and were used to estimate the residual contaminant concentrations as a function of time and temperature, The presence of electron-withdrawing functional groups increases the activation energy and thus the higher temperature required for desorption. (C) 1997 Elsevier Science B.V.

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Documento generato il 12/07/20 alle ore 05:33:49