Anaerobic degradation of tetrachloroethylene using different co-substrates as electron donors / 生物医学与环境科学(英文)
Biomedical and Environmental Sciences
; (12): 73-76, 2006.
Article
in En
| WPRIM
| ID: wpr-229722
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the biodegradation of tetrachloroethylene (PCE) by acclimated anaerobic sludge using different co-substrates, i.e., glucose, acetate, and lactate as electron donors.</p><p><b>METHODS</b>HP-6890 gas chromatograph (GC) in combination with auto-sampler was used to analyze the concentration of PCE and its intermediates. Results PCE could be degraded by reductive dechlorination and the degradation reaction conformed to the first-order kinetic equation. The rate constants are k(lactate) > k(glucose) > k(acetate). The PCE degradation rate was the highest in the presence of lactate as an electron donor.</p><p><b>CONCLUSION</b>Lactate is the most suitable electron donor for PCE degradation and the electron donors supplied by co-metabolic substrates are not the limiting factors for PCE degradation.</p>
Full text:
1
Index:
WPRIM
Main subject:
Oxidation-Reduction
/
Sewage
/
Tetrachloroethylene
/
Bacteria, Anaerobic
/
Biodegradation, Environmental
/
Kinetics
/
Lactic Acid
/
Bioreactors
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Glucose
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Anaerobiosis
Language:
En
Journal:
Biomedical and Environmental Sciences
Year:
2006
Type:
Article