Removal of Phosphorus, Organic Matter and Suspended Solids by Poly Aluminum Chloride from Municipal Wastewater (Case Study: Ahvaz West Wastewater Treatment Plant)

Abstract

Introduction: Phosphorus is an important nutrient for plant and microorganisms growth, thus has an important role in creating eutrophication of surface waters. The present study has investigated Poly Aluminum Chloride efficiency on orthophosphate removal by coagulation and chemical precipitation process in municipal Wastewater in Ahvaz west Wastewater treatment plant. Methods and Materials: This bench scale study was performed on influent wastewater to the primary and secondary clarifier and the effluent of the secondary clarifier in Ahvaz west wastewater treatment plant. By using a jar test, the optimum pH and dose of Poly Aluminum Chloride in orthophosphate removal was determined.