Optimization of Hydrogen and Methane Co-production from Co-digestion of Canned Seafood Wastewater with Glycerol Waste in a Two-stage Continuous System: Comparing CSTR-PFR and CSTR-CSTR Reactors
Issued Date
2025-11-01
Resource Type
eISSN
27738752
Scopus ID
2-s2.0-105028017288
Journal Title
Asean Journal of Scientific and Technological Reports
Volume
28
Issue
6
Rights Holder(s)
SCOPUS
Bibliographic Citation
Asean Journal of Scientific and Technological Reports Vol.28 No.6 (2025)
Suggested Citation
Srimachai T., Thipmunee M., Longsoh Y., Manaswin P., Phuket K.R.N., Srimachai T., Manaswin P., Phuket K.R.N., Thipmunee M., Longsoh Y., Srimachai T., Phuket K.R.N., Srimachai T., Phuket K.R.N., Srimachai T., Phuket K.R.N. Optimization of Hydrogen and Methane Co-production from Co-digestion of Canned Seafood Wastewater with Glycerol Waste in a Two-stage Continuous System: Comparing CSTR-PFR and CSTR-CSTR Reactors. Asean Journal of Scientific and Technological Reports Vol.28 No.6 (2025). doi:10.55164/ajstr.v28i6.259743 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/114078
Title
Optimization of Hydrogen and Methane Co-production from Co-digestion of Canned Seafood Wastewater with Glycerol Waste in a Two-stage Continuous System: Comparing CSTR-PFR and CSTR-CSTR Reactors
Corresponding Author(s)
Other Contributor(s)
Abstract
The challenge posed by canned seafood wastewater (CSW) involves a low COD of 6.80 g/L and a high protein concentration of 3.56 g/L, making it unsuitable for hydrogen and methane production. Consequently, the potential return on investment for establishing a commercial system remains inadequate. To address this issue, a two-stage anaerobic digestion system incorporating co-digestion with glycerol waste (GW) was implemented. The two-stage co-digestion of CSW with GW, at various mixing ratios of 99:1, 98:2, 97:3, 96:4, and 95:5% (v/v), resulted in hydrogen yields of 15.6, 33.6, 38.7, 65.0, and 6.3 ml H<inf>2</inf>/g COD, respectively, while methane yields were measured at 311, 320, 326, 345, and 99 ml CH<inf>4</inf>/g COD, correspondingly. The ideal conditions for achieving the highest yields of hydrogen and methane from the anaerobic co-digestion of CSW with GW were found to be at a mixing ratio of 96:4% (v/v). The ongoing production of hydrogen and methane in a two-stage process utilizing CSTR-PFR and CSTR-CSTR reactors can yield hydrogen and methane at rates of 27.44 and 163.61 L/L of wastewater, and 20.41 and 145.35 L/L of wastewater, respectively. Anaerobic co-digestion of CSW with GW could enhance the production of hydrogen and methane from a two-stage anaerobic digestion system.