Algae and bacteria consortia for wastewater decontamination and transformation into biodiesel, bioethanol, biohydrogen, biofertilizers and animal feed: a review

Abstract Traditional wastewater treatment has been aimed solely at sanitation by removing contaminants, yet actual issues of climate change and depletion natural resources are calling for methods that both remove contaminants convert waste into chemicals fuels. In particular, biological treatments with synergic coupling microalgae bacteria appear promising to organic, inorganic, pathogen generate biofuels. Here, we review the use algae in valorization focus on cell-to-cell adhesion, properties, techniques harvesting production biodiesel, bioethanol, biohydrogen, exopolysaccarides, biofertilizers, animal feeds.