Journal
BIORESOURCE TECHNOLOGY
Volume 262, Issue -, Pages 319-332Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.03.030
Keywords
Microalgae; Seaweeds; Anaerobic co-digestion; Hydraulic retention time; Pretreatment studies
Funding
- Dongguk University-Seoul, South Korea
- Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2016H1D3A1908953, 2017H1D3A1A01054358]
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Biogas production using algal resources has been widely studied as a green and alternative renewable technology. This review provides an extended overview of recent advances in biomethane production via direct anaerobic digestion (AD) of microalgae, macroalgae and co-digestion mechanism on biomethane production and future challenges and prospects for its scaled-up applications. The effects of pretreatment in the preparation of algal feedstock for methane generation are discussed briefly. The role of different operational and environmental parameters for instance pH, temperature, nutrients, organic loading rate (OLR) and hydraulic retention time (HRT) on sustainable methane generation are also reviewed. Finally, an outlook on the possible options towards the scale up and enhancement strategies has been provided. This review could encourage further studies in this area, to intend and operate continuous mode by designing stable and reliable bioreactor systems and to analyze the possibilities and potential of co-digestion for the promotion of algal-biomethane technology.
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