Constitutive dechlorination of chlorinated ethenes by a methanol degrading methanogenic consortium

M. H A Van Eekert, T. J. Schröder, A. van Rhee, A. J M Stams, G. Schraa, James A Field

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The ability of granular methanogenic sludge to dechlorinate chloroethenes was investigated with unadapted sludge from an upflow anaerobic sludge blanket (UASB) reactor fed with methanol. The sludge degraded chlorinated ethenes, but the degradation rates were low. The addition of primary substrate was necessary to sustain dechlorination. The dechlorinating activity seemed to be constitutively present in the anaerobic bacteria. Usually, one chlorine atom was removed via reductive hydrogenolysis. Only trichloroethene (TCE) was converted to substantial amounts of vinylchloride (VC). 1,1-Dichloroethene (1,1DCE) was observed to be an important intermediate in the dechlorination by unadapted granular sludge, although previously this compound had not been commonly observed. Furthermore, the dechlorination of 1,1DCE was faster than the dechlorination of the other chloroethenes.

Original languageEnglish (US)
Pages (from-to)163-170
Number of pages8
JournalBioresource Technology
Volume77
Issue number2
DOIs
StatePublished - Apr 2001
Externally publishedYes

Fingerprint

dechlorination
Dechlorination
Sewage
sludge
ethylene
Methanol
methanol
upflow anaerobic sludge blanket reactor
Trichloroethylene
Hydrogenolysis
Chlorine
chlorine
Anaerobic Bacteria
Bacteria
trichloroethylene
Degradation
Atoms
degradation
bacteria
Substrates

Keywords

  • Chlorinated ethenes
  • Dechlorination
  • Granular methanogenic sludge
  • Reductive hydrogenolysis

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Food Science
  • Process Chemistry and Technology
  • Applied Microbiology and Biotechnology

Cite this

Constitutive dechlorination of chlorinated ethenes by a methanol degrading methanogenic consortium. / Van Eekert, M. H A; Schröder, T. J.; van Rhee, A.; Stams, A. J M; Schraa, G.; Field, James A.

In: Bioresource Technology, Vol. 77, No. 2, 04.2001, p. 163-170.

Research output: Contribution to journalArticle

Van Eekert, M. H A ; Schröder, T. J. ; van Rhee, A. ; Stams, A. J M ; Schraa, G. ; Field, James A. / Constitutive dechlorination of chlorinated ethenes by a methanol degrading methanogenic consortium. In: Bioresource Technology. 2001 ; Vol. 77, No. 2. pp. 163-170.
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