Can algae-based technologies be an affordable green process for biofuel production and wastewater remediation?
- Publication Type:
- Journal Article
- Bioresource Technology, 2018, 256 pp. 491 - 501
- Issue Date:
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© 2018 Elsevier Ltd Algae is a well-known organism that its characteristic is prominent for biofuel production and wastewater remediation. This critical review aims to present the applicability of algae with in-depth discussion regarding three key aspects: (i) characterization of algae for its applications; (ii) the technical approaches and their strengths and drawbacks; and (iii) future perspectives of algae-based technologies. The process optimization and combinations with other chemical and biological processes have generated efficiency, in which bio-oil yield is up to 41.1%. Through life cycle assessment, algae bio-energy achieves high energy return than fossil fuel. Thus, the algae-based technologies can reasonably be considered as green approaches. Although selling price of algae bio-oil is still high (about $2 L−1) compared to fossil fuel's price of $1 L−1, it is expected that the algae bio-oil's price will become acceptable in the next coming decades and potentially dominate 75% of the market.
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