Resource recovery from hydroponic wastewaters using microalgae-based biorefineries: A circular bioeconomy perspective

Document Type

Article

Publication Date

12-1-2022

Abstract

As the world's population grows, it is necessary to rethink how countries throughout the world produce food in order to replace the conventional and unsustainable agricultural techniques. Microalgae cultivation using a nutrient-rich solution from hydroponic systems not only presents a novel approach to solving problems per-taining to the impact of the discharges on the natural environment but also provides a plethora of other biotechnological applications particularly in the productions of high value-added products and plants growth stimulants, which can be potentially assimilated into the circular bioeconomy (CBE) in the hydroponic sector. In this review, the potential and practicability of microalgae to be merged into hydroponics CBE are reviewed. Overall, the integration of microalgal biorefineries in hydroponics systems can be realized after considering their Technology Readiness Level and System Readiness Level beforehand. Several suggestions on strains and hy-droponics system improvement using existing biotechnological tools, Artificial Intelligence (AI) and nano -biotechnology in support of the CBE will be covered.

Keywords

Hydroponics wastewater, Microalgae cultivation, Circular bioeconomy, Microalgal biochar, Nanotechnology

Publication Title

Journal of Biotechnology

Divisions

InstituteofBiologicalSciences,cebar

Funders

Universiti Malaya [Grant no. ST062-2021]

Volume

360

Publisher

Elsevier

Publisher Location

RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS

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