|
|
Publication
|
| Research Title |
Enhancing bio-hydrogen and methane production by co-digestion of Chlorella sp. with cassava pulp |
| Date of Distribution |
14 November 2019 |
| Conference |
| Title of the Conference |
The 14th Asian Biohydrogen, Biorefinery and Bioprocess Symposium-ABBS 2019 |
| Organiser |
Hanoi University of Science and Technology, Hanoi, Viet Nam |
| Conference Place |
The 10th floor, Conference Hall, Ta Quang Buu Library Building, Hanoi University of Science and Technology. No. 1, Dai Co Viet, Hanoi, Vietnam |
| Province/State |
Hanoi, Vietnam |
| Conference Date |
13 November 2019 |
| To |
15 November 2019 |
| Proceeding Paper |
| Volume |
- |
| Issue |
- |
| Page |
- |
| Editors/edition/publisher |
- |
| Abstract |
Microalgal biomass has been regarded as the third generation substrate for bio-fuels production. However, due to its high protein content, the use of microalgal biomass as a sole substrate may result in unbalanced nutrients conditions, leading to low microbial growth and product formation. This problem may be mitigated by co-digesting microalgal biomass with a carbon-rich substrate. In the present study, co-digestion of Chlorella sp. biomass with cassava pulp (CP) was investigated, aiming to optimize the conditions for bio-hydrogen and methane production under a two-stage anaerobic digestion (AD) process. Results showed that a maximum bio-hydrogen yield of 113.6 mL/g-volatile-solids (VS) was obtained under dark fermentation (DF) at a carbon to nitrogen ratio of 20, and a feedstock to inoculum ratio of 0.5 on a VS basis. Subsequent use of hydrogenic effluent in methanogenesis phase of AD gave a maximum methane yield of 196.0 mL/g-VS at an initial pH of 7.0, and an inoculum size of 20%(w/v). Overall, co-digestion of Chlorella sp. biomass with CP gave a total energy yield of 8.25 kJ/g-VS, while only 3.03 kJ/g-VS (30.2 mL-H2/g-VS and 75.5 mL-CH4/g-VS) and 4.81 kJ/g-VS (61.9 mL-H2/g-VS and 115.6 mL-CH4/g-VS) were attained using Chlorella sp. biomass and CP as a sole substrate, respectively. These results demonstrate clearly that co-digestion of Chlorella sp. biomass with CP is an effective strategy for enhancing bio-hydrogen and methane production. |
| Author |
|
| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Oral |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
|
| Citation |
0
|
|
|
|
|
|
|
|
|
Journal Publication
ไทย