Methods of Phosphate Adsorption and Desorption in Water Using Zeolite Incorporated with Iron and Their Apparatus

摘要

An object of the present invention is to provide a method for removing and regenerating phosphates in water by aluminosilicate containing an iron component capable of easily removing phosphates in water and an apparatus therefor. In order to achieve the object, the apparatus for removing phosphates comprises: an introduction tank; an adsorption tank; a desorption tank; and an outlet. The method for removing phosphates comprises: an inlet water treatment step; an adsorption pretreatment step; a phosphate removal step; and a discharge step, wherein the phosphate removal step comprises a reduction step for submerging a supersaturated iron-containing zeolite bound to the phosphates in an alkaline solution to reduce the phosphates to a previous state of phosphate adsorption.