Wastewater treatment by microalgae

The growth of the world's population increases demand for fresh water, food, energy, and technology, which in turn leads to increasing amount wastewater, produced both by domestic industrial sources. These different wastewaters contain a wide variety organic inorganic compounds can cause tremendous environmental problems if released untreated. Traditional treatment systems are usually expensive, energy demanding often still incapable solving all challenges presented wastewaters. Microalgae promising candidates wastewater reclamation as they capable reducing nitrogen phosphate well other toxic including heavy metals or pharmaceuticals. Compared traditional systems, photosynthetic microalgae require less input since use sunlight their source, at same time lower carbon footprint overall process. This mini-review focuses on recent advances using microalgae. most common microalgal strains used this purpose described from origins. We also describe impact climate with particular focus Nordic climate.