Production of hydrogen from marine macro-algae biomass using anaerobic sewage sludge microflora

• Published in: Biotechnology and bioprocess engineering Vol. 14; no. 3; pp. 307 - 315
• Main Authors: Park, J.I. (Silla University, Busan, Republic of Korea), Lee, J.W. (Sogang University, Seoul, Republic of Korea), Sim, S.J. (Sungkyunkwan University, Suwon, Republic of Korea), Lee, J.H. (Silla University, Busan, Republic of Korea), E-mail: [e-mail]
• Format: Journal Article
• Language: English
• Published: Heidelberg The Korean Society for Biotechnology and Bioengineering 01-06-2009; Springer Nature B.V; 한국생물공학회
• Subjects: Acidification; Agricultural production; Algae; Alternative energy sources; anaerobic fermentation; Bacteria; Biomass; Biomass energy; Biotechnology; Carbon; Carbon sources; Chemistry; Chemistry and Materials Science; Engineering; Experiments; Fermentation; Fuel cells; Heat; HIDROGENO; High temperature; HYDROGEN; Hydrogen production; HYDROGENE; Industrial and Production Engineering; Laboratories; Laminaria; Laminaria japonica; marine macro-algae; Microorganisms; Porphyra tenera; Process engineering; Sewage sludge; Sludge; Studies; Ulva lactuca; Undaria pinnatifida; 생물공학; Laminaria japonica
• ISSN: 1226-8372; 1976-3816
• DOI: 10.1007/s12257-008-0241-y

Hydrogen was produced from various marine macro-algae (seaweeds) through anaerobic fermentation using an undefined bacterial consortium. In this study, anaerobic fermentation from various marine macro-algae for Ulva lactuca, Porphyra tenera, Undaria pinnatifida, and Laminaria japonica was studied. From this analysis Laminaria japorica was determined to be the optimum substrate for hydrogen production. When L. japornica was used as the carbon source for enhanced hydrogen production, the optimum fermentation temperature, substrate concentration, initial pH, and pretreatment condition were determined to be 35℃, 5%, 7.5, and BT120 (Ball mill and thermal treatments at 120℃ for 30 min), respectively. In addition, hydrogen production was improved when the sludge was heat-treated at 65℃ for 20 min. Under these conditions, about 4,164 mL of hydrogen was produced from 50 g/L of dry algae (L. japonica) for 50 h, with a hydrogen concentration around 34.4%. And the maximum hydrogen production rate and yield were found to be 70 mL/Lㆍh and 28 mL/g dry algae, respectively.