title: Co-fermentation of water hyacinth and beverage wastewater in powder and pellet form for hydrogen production.
abstract: Hydrogen (H2) production potential of water hyacinth (WH) and beverage wastewater (BW) mixture in powder and pellet form at various combination ratios were evaluated. Batch co-fermentation results showed peak biogas production of 105.5 mL and H2 production of 55.6 mL at the combination ratio of 1.6 g WH and 2.4 g BW in pellet form. With the same ratio in pellet form, the maximum H2 production rate 542 mL H2/L-d, maximum specific H2 production rate 869 mL H2/g VSS-d and H2 yield 13.65 mL/g feedstock were obtained, and were 88, 88 and 34% higher than its powder form. The predominant soluble metabolite was acetate in the concentration of 1059-2639 mg COD/L (40-79% of total metabolites) in most runs during co-fermentation of mixed feedstock. Carbon-to-nitrogen ratio and the physical form of the combined feedstock are essential criteria for optimum H2 production. Co-fermentation also alleviates the waste disposal problem of the industries.
authors: Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland.
authors: Chyi-How
authors: CH
authors: Lay
authors: Biswarup
authors: B
authors: Sen
authors: Chin-Chao
authors: CC
authors: Chen
authors: Jou-Hsien
authors: JH
authors: Wu
authors: Shih-Chi
authors: SC
authors: Lee
authors: Chiu-Yue
authors: CY
authors: Lin
mesh_terms: D001628:Beverages; D056804:Biofuels; D031806:Eichhornia / Q000378:metabolism*; D005285:Fermentation; D006859:Hydrogen / Q000378:metabolism*; D011208:Powders; D062611:Solid Waste; D012995:Solubility; D062065:Wastewater; D060753:Water Quality
chemical_list: D056804:Biofuels; D006859:Hydrogen; D011208:Powders; D062611:Solid Waste; D062065:Wastewater