Valorization of sugarcane leaves and co-digestion with microalgal biomass to produce biofuels and value-added products under the circular economy and zero-waste concepts
Issued Date
2024-01-01
Resource Type
ISSN
01968904
Scopus ID
2-s2.0-85175738039
Journal Title
Energy Conversion and Management
Volume
299
Rights Holder(s)
SCOPUS
Bibliographic Citation
Energy Conversion and Management Vol.299 (2024)
Suggested Citation
Sitthikitpanya N., Khamtib S., Sittijunda S., Imai T., Reungsang A. Valorization of sugarcane leaves and co-digestion with microalgal biomass to produce biofuels and value-added products under the circular economy and zero-waste concepts. Energy Conversion and Management Vol.299 (2024). doi:10.1016/j.enconman.2023.117854 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/91023
Title
Valorization of sugarcane leaves and co-digestion with microalgal biomass to produce biofuels and value-added products under the circular economy and zero-waste concepts
Other Contributor(s)
Abstract
This study investigates the production of biofuels and value-added products by co-digesting sugarcane leaves and microalgal biomass, aligning with circular economy and zero-waste principles. Hydraulic retention time (HRT) on continuous hydrogen production in a continuous stirred tank reactor was investigated. An optimal HRT of 12 h maximizes hydrogen production rate (3,983 mL-H2/L·d) and yield (99.6 mL-H2/g-VS). Microbial analysis using 16S rRNA amplicon sequencing on the Illumina platform indicates diverse communities, prominently featuring Streptococcus (43.4 %) and Clostridium (31.3 %) genera. The process efficiently utilizes residual components—acidified slurry, hydrogenic effluent, and solid residue—for methane and hydrogen generation, yielding up to 22.2 kJ/g-VS in total energy. The solid residue from hydrogen production exhibits composting properties and serves to produce vermicompost and densified refuse-derived fuel. This approach exemplifies the adept utilization of raw materials within a circular economy and zero-waste framework, yielding no waste throughout the entire process.