High Performance of Biohydrogen Production in Packed-Filter Bioreactor via Optimizing Packed-Filter Position

Chen-Yeon Chu, Jin-Long Zheng, Tsung-Hsien Chen and Prakash Bhuyar
Additional contact information
Chen-Yeon Chu: Program of Mechanical and Aeronautical Engineering, Feng Chia University, Taichung 407802, Taiwan
Jin-Long Zheng: Master’s Program of Green Energy Science and Technology, Feng Chia University, Taichung 407802, Taiwan
Tsung-Hsien Chen: Program of Mechanical and Aeronautical Engineering, Feng Chia University, Taichung 407802, Taiwan
Prakash Bhuyar: School of Renewable Energy, Maejo University, Chiang Mai 50290, Thailand

IJERPH, 2021, vol. 18, issue 14, 1-12

Abstract: In this present investigation, a packed-filter bioreactor was employed to produce hydrogen utilizing an expired soft drink as a substrate. The effects of feeding substrate concentrations ranging from 19.51, 10.19, 5.34, 3.48, to 2.51 g total sugar/L were examined, and the position of the packed filter installed in the bioreactor at dimensionless heights (h/H) of 1/4, 2/4, 3/4, and 4/4 was studied. The results revealed that with a substrate concentration of 20 g total sugar/L and a hydraulic retention time (HRT) of 1 h, a packed filter placed at the half-height position of the bioreactor (h/H 2/4) has the optimal hydrogen production rate, hydrogen yield, and average biomass concentration in the bioreactor, resulting in 55.70 ± 2.42 L/L/d, 0.90 ± 0.06 mol H 2 /mol hexose, and 17.86 ± 1.09 g VSS/L. When feeding substrate concentrations varied from 20, 10, to 5 g total sugar/L with the packed-filter position at h/H 2/4, Clostridium sp., Clostridium tyrobutyricum , and Bifidobacterium crudilactis were the predominant bacteria community. Finally, it was discovered that the packed-filter bioreactor can produce stable hydrogen in high-strength organic effluent.

Keywords: hydraulic retention time (HRT); expired beverage drink; hydrogen production rate; hydrogen yield; Clostridium sp.; high-strength organic effluent (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1660-4601/18/14/7462/pdf (application/pdf)
https://www.mdpi.com/1660-4601/18/14/7462/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:18:y:2021:i:14:p:7462-:d:593303

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().