Uncontrolled discharges of wastes lead to cause serious environmental problems. Therefore, it is very important to minimize the risks that are associated with wastes. The best way for minimizing the risks that are associated with wastes is to be reusing for the production of algae biomass. Micro-algae technology has a number of advantages including recovery of nutrients and avoiding the CO2 release due to their autotrophic metabolism. One of the general goals of this book is to adapt algal production for nutrient recovery from algal effluent.