Journal
BIODEGRADATION
Volume 20, Issue 3, Pages 411-418Publisher
SPRINGER
DOI: 10.1007/s10532-008-9232-0
Keywords
Hydrogen; Decolorization; RB4; Salmonella subterranea; Paenibacillus polymyxa; Wastewater
Categories
Funding
- JSPS-NRCT (Microbial Resources Program)
- Thailand Research Fund
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Anaerobic biodegradability of wastewater (3,000 mg CODcr/l) containing 300 mg/l Reactive Blue 4, with different co-substrates, glucose, butyrate and propionate by a bacterial consortium of Salmonella subterranea and Paenibacillus polymyxa, concomitantly with hydrogen production was investigated at 35A degrees C. The accumulative hydrogen production at 3,067 mg CODcr/l was obtained after 7 days of incubation with glucose, sludge, the bacterial consortium. The volatile fatty acids, residual glucose and the total organic carbon were correlated to hydrogen obtained. Interestingly, the bacterial consortium possess decolorization ability showing approximately 24% dye removal after 24 h incubation using glucose as a co-substrate, which was about two and eight times those of butyrate (10%), propionate (12%) and control (3%), respectively. RB4 decolorization occurred through acidogenesis, as high volatile fatty acids but low methane was detected. The bacterial consortium will be the bacterial strains of interest for further decolorization and hydrogen production of industrial waste water.
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