A different mechanism for the reductive dechlorination of chlorinated ethenes: kinetic and spectroscopic evidence
Article Abstract:
Reductive dechlorination of chlorinated ethenes by anaerobic bacteria is surmised to follow a pathway wherein chloroalkylcobalamin complexes are reduced to form chlorinated ethene intermediates. The degradation is catalyzed by vitamin B12 and titanium citrate which effects a homolytic cleavage and titanium-catalyzed elimination reaction. This alternative pathway can be manipulated to reduce the release of undesirable intermediates such as vinyl chloride.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Enhanced dechlorination of carbon tetrachloride and chloroform in the presence of elemental iron and Methanosarcina barkeri, Methanosarcina thermophila, or Methanosaeta concillii
Article Abstract:
The ability of methanogens, such as Methanosarcina barkeri, M. thermophila and Methanosaeta concillii, in dechlorinating carbon tetrachloride and chloroform in an iron-rich medium was shown to be dependent on the availability of elemental hydrogen. Elemental hydrogen acted as an electron donor in the dechlorination process, which is effected in the excreted biomolecule specifically produced to exploit this process to support microbial metabolism.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Effect of various factors on dehalogenization of chlorinated phenols and anilines during oxidative coupling. Redox interactions of Cr(VI) and substituted phenols: products and mechanism
- Abstracts: Reductive dehalogenation of aliphatic halocarbons by lignin peroxidase of Phanerochaete chrysosporium. Genotoxicity profiles and reaction characteristics of potassium polyethylene glycol dehalogenation of wood preserving waste
- Abstracts: Comparison of the uptake of dioxin-like compounds by caged channel catfish and semipermeable membrane devices in the Saginaw River, Michigan