engleski

Phosphate removal from wastewater: an overview

Wastewater containing large quantities of nutrients poses a risk to the environment causing an eutrophication and pollution of aquatic habitat all over the world. Therefore, during the past decade many studies investigated nutrients removal, especially phosphorus and nitrogen, from wastewater to prevent harmful effects on the environment. Phosphates are naturally occurring nutrients in the environment, but due to many years of uncontrolled discharge in environment via wastewaters, heightened concentrations of phosphates had been detected in the freshwater ecosystems worldwide as the result of intensive usage of fertilizers and detergents. Phosphate loading of water bodies generates excessive algae growth, reduce or eliminate oxygen and generally deteriorate water quality. Numerous researches and experts are putting a high effort to find efficient, ecological and economical solution for phosphate reduction or/and elimination from wastewater. On the other hand, for the last 20 years, phosphorus is deemed a recoverable product rather than a pollutant. This paper presents an overview of recent research articles related to the solutions for phosphate biological and chemical removal from wastewaters as well as methods and possibilities for phosphorus recovery.

wastewater ; phosphate removal ; biological treatment ; chemical treatment

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