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Title: Reductive dehalogenation of trichloroethylene using zero-valent iron

Abstract

Reductive dehalogenation of hazardous organics using zero-valent metals is a promising technology. The purpose of this study was to examine the effect of feed concentration, initial pH, metal loading and particle size of metal on the degradation of trichloroethylene (TCE), using zero-valent iron. The degradation rate was found to be first order with respect to the organic molecule, thus the conversion was independent of initial TCE concentration. The amount of TCE degraded at any given time was found to be directly proportional to the dissolved iron in solution. The metal surface area plays a crucial role in the process. Twofold increase in the pseudo first order rate constant was obtained when the metal particle size was decreased from 370 {mu}m by factor of 2.5. For iron surface area per unit volume (S/V) of solution < 1000 m{sup -1}, the TCE degradation rate constant increased linearly with S/V ratio. 20 refs., 8 figs., 1 tab.

Authors:
; ;  [1]
  1. Univ. of Kentucky, Lexington, KY (United States)
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
617820
Resource Type:
Journal Article
Journal Name:
Environmental Progress
Additional Journal Information:
Journal Volume: 16; Journal Issue: 2; Other Information: PBD: Sum 1997
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ORGANIC CHLORINE COMPOUNDS; DEHALOGENATION; GROUND WATER; REMEDIAL ACTION; ECOLOGICAL CONCENTRATION; ENVIRONMENTAL TRANSPORT; TECHNOLOGY ASSESSMENT

Citation Formats

Gotpagar, J, Grulke, E, and Bhattacharyya, D. Reductive dehalogenation of trichloroethylene using zero-valent iron. United States: N. p., 1997. Web. doi:10.1002/ep.3300160221.
Gotpagar, J, Grulke, E, & Bhattacharyya, D. Reductive dehalogenation of trichloroethylene using zero-valent iron. United States. https://doi.org/10.1002/ep.3300160221
Gotpagar, J, Grulke, E, and Bhattacharyya, D. 1997. "Reductive dehalogenation of trichloroethylene using zero-valent iron". United States. https://doi.org/10.1002/ep.3300160221.
@article{osti_617820,
title = {Reductive dehalogenation of trichloroethylene using zero-valent iron},
author = {Gotpagar, J and Grulke, E and Bhattacharyya, D},
abstractNote = {Reductive dehalogenation of hazardous organics using zero-valent metals is a promising technology. The purpose of this study was to examine the effect of feed concentration, initial pH, metal loading and particle size of metal on the degradation of trichloroethylene (TCE), using zero-valent iron. The degradation rate was found to be first order with respect to the organic molecule, thus the conversion was independent of initial TCE concentration. The amount of TCE degraded at any given time was found to be directly proportional to the dissolved iron in solution. The metal surface area plays a crucial role in the process. Twofold increase in the pseudo first order rate constant was obtained when the metal particle size was decreased from 370 {mu}m by factor of 2.5. For iron surface area per unit volume (S/V) of solution < 1000 m{sup -1}, the TCE degradation rate constant increased linearly with S/V ratio. 20 refs., 8 figs., 1 tab.},
doi = {10.1002/ep.3300160221},
url = {https://www.osti.gov/biblio/617820}, journal = {Environmental Progress},
number = 2,
volume = 16,
place = {United States},
year = {Wed Dec 31 00:00:00 EST 1997},
month = {Wed Dec 31 00:00:00 EST 1997}
}