Sea grass (Syringodiumisoetifolium) is a promising source of bioenergy such as hydrogen. Due to the complex cell structure, it requires a pretreatment process prior to fermentation. This study aims to increase the biohydrogen production from sea grass by enhancing the solubilization via surfactant induced sonic fission (SSF). Initially, sonic fission (SF) pretreatment alone was carried out intherange of power from 0.02 kW to 0.18 kW for 0 minutes to 60 minutes. At the optimum condition of SF (0.14 kW, 30 minutes), ammonium dodecyl sulfate, a surfactant was added to improve the pretreatment by reducing its disintegration time period. The condition of SSF 0.14 kW (sonic power), 0.0025 g/g TS (surfactant dosage) and 11 minutes (time) was considered as optimum for effective solubilization of sea grass. The study results illustrated that highersolubilizationof 20.7% was attained through SSF when compared with SF (13.5%). Higher biohydrogen (H2) production of 114(mL H2/g COD) was obtained in SSF when compared to SF.
Bibliographical noteFunding Information:
This work is supported by Department of Biotechnology, India under its initiative Mission innovation Challenge Scheme (IC4). The grant from the project entitled “A novel integrated biorefinery for conversion of lignocellulosic agro waste into value added products and bioenergy (BT/PR31054/PBD/26/763/2019) is utilized for this study. This work is also partially supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT, MSIT) (NRF‐2017R1E1A1A01073690).
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Nuclear Energy and Engineering
- Fuel Technology
- Energy Engineering and Power Technology