Harvesting biohydrogen from toxic wastewater using isolated strain

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

8 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)13907-13913
Journal / PublicationInternational Journal of Hydrogen Energy
Volume36
Issue number21
Publication statusPublished - Oct 2011
Externally publishedYes

Abstract

Toxicity prevents the bioenergy content of certain industrial effluents from being recovered. An enriched Clostridium butyricum strain was employed to produce hydrogen by fermentation from cellobiose in the presence of phenol at 200-1500 mgl-1. The enriched Cl. butyricum yielded the most hydrogen at 2.1 mol H2 mol-1 cellobiose with 600 mgl-1 phenol. Butyrate was the main metabolite. Cell metabolism was substantially inhibited at a phenol concentration of 1500 mgl-1. Part of the phenol was co-degraded during the test, helping to eliminate the toxicity of wastewater. Both the pyruvate oxidative decarboxylation pathway and the NADH pathway contributed to biohydrogen production. Phenol toxicity more strongly inhibits soluble hydrogenase than it does membrane-bound hydrogenase. Although the NADH pathway dominated at low phenol concentration, increasing the phenol concentration shifted the biohydrogen pathway toward decarboxylation. © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Research Area(s)

  • Biohydrogen, Pathway, Phenol, Toxicity

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Harvesting biohydrogen from toxic wastewater using isolated strain. / Lee, Duu-Jong; Tai, Jung; Adav, Sunil S. et al.
In: International Journal of Hydrogen Energy, Vol. 36, No. 21, 10.2011, p. 13907-13913.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review