title: Hydrogen production and anaerobic decolorization of wastewater containing Reactive Blue 4 by a bacterial consortium of Salmonella subterranea and Paenibacillus polymyxa.
abstract: 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 35 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.
authors.affiliation: Department of Biochemistry, Faculty of Medicine, Srinakharinwirot University, Bangkok, 10110, Thailand. ramidawa@yahoo.com
authors.forename: Ramida Yuwadee
authors.initials: RY
authors.lastname: Watanapokasin
authors.forename: Anantabhathra
authors.initials: A
authors.lastname: Boonyakamol
authors.forename: Supawadee
authors.initials: S
authors.lastname: Sukseree
authors.forename: Aungkana
authors.initials: A
authors.lastname: Krajarng
authors.forename: Thanet
authors.initials: T
authors.lastname: Sophonnithiprasert
authors.forename: Sungwan
authors.initials: S
authors.lastname: Kanso
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Imai
mesh_terms: D000693:Anaerobiosis; D001419:Bacteria / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002087:Butyrates / Q000378:metabolism; D003470:Culture Media / Q000737:chemistry; D005232:Fatty Acids, Volatile / Q000032:analysis; D005947:Glucose / Q000378:metabolism; D006859:Hydrogen / Q000032:analysis / Q000378:metabolism*; D053858:Metabolic Networks and Pathways; D008697:Methane / Q000032:analysis; D010100:Oxygen / Q000032:analysis; D011422:Propionates / Q000378:metabolism; D012475:Salmonella / Q000378:metabolism*; D014227:Triazines / Q000378:metabolism*; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D002087:Butyrates; D003470:Culture Media; D005232:Fatty Acids, Volatile; D011422:Propionates; D014227:Triazines; D014874:Water Pollutants, Chemical; C036598:procion blue MX-R; D006859:Hydrogen; D005947:Glucose; D008697:Methane; D010100:Oxygen