(4gk) Municipal Solid Waste-Derived Syngasfermentation Process By Pressurization
AIChE Annual Meeting
2024
2024 AIChE Annual Meeting
Meet the Candidates Poster Sessions
Meet the Faculty and Post-Doc Candidates Poster Session
Sunday, October 27, 2024 - 1:00pm to 3:00pm
Global efforts are focused on achieving carbon neutrality due to the increases in the levels of greenhouse gases.
Moreover, the greenhouse gases generated from the disposal of municipal solid waste (MSW) are the primary sources of emissions in
South Korea. In this study, we conducted the biological conversion of syngas (CO, H2, and CO2) generated from MSW gasification.
The MSW-derived syngas was used as a feed source for cultivating Eubacterium callanderi KIST612, and pressurization was employed
to enhance gas solubility in culture broth. However, the pH of the medium decreased owing to the pressurization because of the CO2 in
the syngas and the cultivation-associated organic acid production. The replacement of conventional HEPES buffer with a phosphate
buffer led to an approximately 2.5-fold increase in acetic acid concentration. Furthermore, compared with the control group, the
pressurized reactor exhibited a maximum 8.28-fold increase in the CO consumption rate and a 3.8-fold increase in the H2 consumption