Microalgae based wastewater treatment coupled to the production of high value agricultural products: Current needs and challenges
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Author/sMorillas-España, Ainoa; Lafarga, Tomás; Sánchez-Zurano, Ana; Acién-Fernández, Francisco Gabriel; González-López, Cynthia
One of the main social and economic challenges of the 21st century will be to overcome the worlds’ water deficit expected by the end of this decade. Microalgae based wastewater treatment has been suggested as a strategy to recover nutrients from wastewater while simultaneously producing clean water. Consortia of microalgae and bacteria are responsible for recovering nutrients from wastewater. A better understanding of how environmental and operational conditions affect the composition of the microalgae-bacteria consortia would allow to maximise nutrient recoveries and biomass productivities. Most of the studies reported to date showed promising results, although up-scaling of these processes to reactors larger than 100 m2 is needed to better predict their industrial relevance. The main advantage of microalgae based wastewater treatment is that valuable biomass with unlimited applications is produced as a co-product. The aim of the current paper was to review microalgae based wastewater...