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Abstract
The paper reports an experimental investigation into the transient performance during the start-up of a pilot-scale two-phase anaerobic digestion (TPAD) process demonstration unit (PDU) treating food waste with biochar addition. Hydrogen (H 2 ) was produced in the first phase (R1) and methane (CH 4 ) was produced in the second phase (R2). A fed-batch operation strategy was applied to the start-up of both phases, followed by semi-continuous operation. Production rates and yields of H 2 and CH 4 and volatile fatty acids (VFA) were measured while the pH and temperature were monitored throughout the process. Fed-batch operation allowed microbe enrichment and gradual VFA production in both phases, which was observed to be efficient in starting up the TPAD PDU. Under semi-continuous operation, R1 produced biogas with composition up to 49% of H 2 and at a yield of 46 L H 2 .kg −1 VS. CH 4 composition and yield reached up to 59% and 301 L CH 4 .kg −1 VS in the R2.
Original language | English |
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Pages (from-to) | 14341-14350 |
Number of pages | 10 |
Journal | International Journal of Hydrogen Energy |
Volume | 44 |
Issue number | 28 |
DOIs | |
Publication status | Published - 31 May 2019 |
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Dive into the research topics of 'Transient performance during start-up of a two-phase anaerobic digestion process demonstration unit treating carbohydrate-rich waste with biochar addition'. Together they form a unique fingerprint.Projects
- 1 Finished
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An Innovative Two Phase Anaerobic Process for Biogas Production from Green Waste and Animal Droppings for Remote Communities
Zhang, D. & Wu, J.
1/01/11 → 31/12/13
Project: Research