Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7705662 | International Journal of Hydrogen Energy | 2018 | 9 Pages |
Abstract
This study assessed the co-digestion of macro and microalgal biomass towards the improvement of hydrogen production. The red macroalgal biomass (Gelidium amansii) and green mixed microalgal biomass was mixed in a ratio of 8:2, with an initial substrate concentration of 10Â g/L, and various amount of inoculum addition range from 3 to 15% (v/v) was evaluated to assess the feasible substrate to inoculum ratio for the effective co-digestion of the algal biomass. The results showed that the co-digestion with 6% inoculum addition provided the peak hydrogen yield of 45Â mL/g dry biomass added with a high hydrogen content of 24% in the gas phase. The other tested conditions showed moderate hydrogen content in the range of 17-22%, respectively. These results suggest that anaerobic co-digestion of macro and microalgal biomass, with appropriate initial biomass loading (6%) is essential for enhanced hydrogen production.
Related Topics
Physical Sciences and Engineering
Chemistry
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Authors
Periyasamy Sivagurunathan, Gopalakrishnan Kumar, Takuro Kobayashi, Kaiqin Xu, Sang-Hyoun Kim, Dinh Duc Nguyen, Soon Woong Chang,