Hydrothermal liquefaction (HTL) of microalgae biomass generates an aqueous phase (AP) byproduct with limited energy value. Recycling the AP solution as a source of nutrients for microalgae cultivation provides an opportunity for a cost-effective production of HTL based biofuel and algal biomass feedstock for HTL, allowing a closed-loop biofuel production in microalgae HTL biofuel system. This paper aims to provide a comprehensive overview of characteristics of AP and its nutrients recycling for algae production. Inhibitory effects resulted from the toxic compounds in AP and alleviation strategies are discussed.

These findings are described in the article entitled Use of microalgae to recycle nutrients in aqueous phase derived from hydrothermal liquefaction process, recently published in the journal Bioresource Technology. This work was conducted by Lijian Leng, Jun Li, Zhiyou Wen, and Wenguang Zhou from Nanchang University.

Lijian Leng, Jun Li, Zhiyou Wen, Wenguang Zhou. Use of microalgae to recycle nutrients in aqueous phase derived from hydrothermal liquefaction process. Bioresource Technology. 2018, 256, 529-542.

Paper introduction links:

https://sciencetrends.com/closing-the-loop-for-bio-oil-production-from-microalgae-by-hydrothermal-liquefaction/?from=timeline

Full Article Linksh：

https://www.sciencedirect.com/science/article/pii/S0960852418301433

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