Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 47, Issue 39, Pages 17184-17193Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2022.03.216
Keywords
Sargassum tennerimum; Marine macroalgae; Surfactant; Dioctyl sodium sulphosuccinate; Biohydrogen
Categories
Ask authors/readers for more resources
This study investigates the feasibility of using Sargassum tennerimum as a renewable energy source for biohydrogen production. The optimized pretreatment process using sonication and surfactant-aided ultrasonic pretreatment improves the biohydrogen production and energy efficiency.
Growing energy demand is inevitable in the future, due to increased commercialization and industrialization. Biohydrogen production from renewable biomass is considered as clean energy technology and, in this study, the feasibility of using Sargassum tennerimum as a renewable energy source has been attempted. Pretreatment using sonication pretreatment (ST) and surfactant Dioctyl sodium sulphosuccinate (DOSS) mediated ultrasonic pretreatment (DOSSSP) were investigated and the optimized pretreatment time and sonication power, respectively, were 30 and 200W for ST. DOSS dosage of 0.005 g/g TS was found to be optimum for DOSSSP with the corresponding maximum of 2600 mg/L and 27.36% respectively for sCOD (Soluble chemical oxygen demand) release and COD (Chemical oxygen demand) solubilization percentage. Biohydrogen assay analysis of the pretreated algal biomass was carried out and 86 mL/g COD of maximum biohydrogen production was achieved for DOSSSP pretreated sample than ST and control owing to higher COD solubilization percentage, carbohydrate and protein release. Energy analysis was performed to test the economic viability of the pretreatment process. This analysis showed that the maximum net positive energy of 0.0407 and energy ratio of 2.43 was obtained for DOSSSP revealing its economic viability. This study also reveals that macroalgae Sargassum tennerimum could be a sustainable renewable energy source for biohydrogen production as it is abundant throughout the year. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available