Zhu et al. (2024): Integrating bicarbonate-based microalgal production with alkaline sewage for ocean negative carbon emissions
Chenba Zhu, Chen Hu, Jihua Liu, Zhanyou Chi, Nianzhi Jiao IN: Trends in Biotechnology, https://doi.org/10.1016/j.tibtech.2024.06.015
Using sewage (wastewater) for ocean alkalinity enhancement (OAE) has been considered as one promising ocean negative carbon emissions (ONCE) approach due to its high carbon sequestration efficiency and low environmental risk. To make this process more profitable and sustainable, this perspective proposes to integrate bicarbonate-based microalgal production and sewage alkalinity enhancement for ONCE. In this concept, the spent aqueous alkaline bicarbonate-based microalgal medium is cheap or even free for OAE, while the produced microalgae with high value-added compositions make this process more profitable.