The potential use of natural coagulants for microalgae harvesting: a review

Abstract Microalgae cultivation has received much interest in foods and biofuel production provides a significant potential option for cleaning the soil, water, environment from several contaminants. Accordingly, microalgae harvesting becomes essential to separate solid–liquid suspension other green technologies sustainable processes. Although physical, chemical, physiochemical methods have been widely used harvesting, their cost, non-environmental residues, efficiencies are still questionable. This review summarized evaluated performance of different natural coagulants cultivated microalgae. The operational factors effect on efficiency were discussed. Moreover, current challenges utilizing considered.