School of Resource and Environmental Sciences, Hubei Key Laboratory of Biomass-Resources Chemistry and Environmental Biotechnology, and Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan 430079, PR China.
School of Resource and Environmental Sciences, Hubei Key Laboratory of Biomass-Resources Chemistry and Environmental Biotechnology, and Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan 430079, PR China; Faculty of Technology, and Vaasa Energy Institute, University of Vaasa, PO Box 700, FI-65101 Vaasa, Finland.
Bioresour Technol. 2020 Apr;301:122804. doi: 10.1016/j.biortech.2020.122804. Epub 2020 Jan 13.
Biodiesel is one of the best promising candidates in response to the energy crisis, since it has the capability to minimize most of the environmental problems. Microalgae, as the feedstock of third-generation biodiesel, are considered as one of the most sustainable resources. However, microalgae production for biodiesel feedstock on a large scale is still limited, because of the influences of lipid contents, biomass productivities, lipid extraction technologies, the water used in microalgae cultivation and processes of biomass harvesting. This paper firstly reviews the recent advances in microalgae cultivation and growth processes. Subsequently, current microalgae harvesting technologies are summarized and flocculation mechanisms are analyzed, while the characteristics that the ideal harvesting methods should have are summarized. This review also summarizes the environmental pollution control performances and the key challenges in future. The key suggestions and conclusions in the paper can offer a promising roadmap for the cost-effective biodiesel production.
生物柴油是应对能源危机最有前途的候选者之一，因为它有能力最大限度地减少大多数环境问题。微藻作为第三代生物柴油的原料，被认为是最可持续的资源之一。然而，由于脂质含量、生物量生产力、脂质提取技术、微藻培养用水以及生物质收获过程的影响，大规模生产生物柴油原料的微藻仍然受到限制。本文首先综述了微藻培养和生长过程的最新进展。随后，对现有的微藻收获技术进行了总结，并分析了絮凝机制，同时总结了理想的收获方法应具有的特点。本文还综述了未来的环境污染控制性能和关键挑战。本文的主要建议和结论为经济高效地生产生物柴油提供了有前景的路线图。
