Journal
RENEWABLE ENERGY
Volume 95, Issue -, Pages 474-477Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2016.04.051
Keywords
Benzoate; Cyanobacteria; Photobiological hydrogen production
Funding
- National Natural Science Foundation of China [51278001, 21261160489]
- Program for Changjiang Scholars and Innovative Research Team in University of China
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Cyanobacteria are an inexpensive and sustainable source of photobiological H-2 production due to their simple nutritional conditions. Combination of toxic contaminant degradation with H-2 production is a promising approach in wastewater treatment. This study demonstrated that Lyngbya sp., a filamentous cyanobacterium, can generate H-2 in the presence of benzoate which, is a central intermediate during the anaerobic degradation of many aromatic compounds. The highest H-2 production rate of 17.05 mu mol H-2/g Chla/h was obtained in the second cycle and 600 mg/L benzoate was depleted within 64 h in H-2 production test. The strain has shown a higher H-2-producing capacity, which was comparable to those of certain noted strains such as N-2-fixing filamentous Anabaena variabilis PK84 and non-N-2-fixing filamentous Microcystis PCC 7806. The co-metabolism of benzoate for H-2 production by Lyngbya sp. makes it an interesting model strain for clean energy production and hazardous pollutant removal. (C) 2016 Elsevier Ltd. All rights reserved.
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