NOVELTY - A wastewater treatment performing method involves naturally settling processed waste water suspension to dielectrophoresis (DEP) microfiltration. The obtained solid suspension is moved to a DEP nano-filtration group. The solid particles are sedimented, and processed purified water is input into the DEP nano-filtration group. Sodium chloride concentrated solution in the suspension is subjected to electrolysis bath. Chlorine and hydrogen produced by electrolysis are entered into hydrogen chlorine fuel cells. The fuel cells produce direct current to supplement electrical energy.    USE - Method for performing wastewater treatment for rare earth elements.    ADVANTAGE - The method enables reducing requirement and processing energy cost and efficiently recovering soldering tin of power consumption.    DETAILED DESCRIPTION - A wastewater treatment performing method involves naturally settling processed waste water suspension to dielectrophoresis (DEP) microfiltration and separating the suspension contained in clay containing solution of solid particles. The obtained solid suspension is moved to a DEP nano-filtration group. The solid particles are sedimented, and kerosene emulsion is separated from turbid liquid. Processed purified water is input into the DEP nano-filtration group. The solid suspension is provided with sodium chloride and ammonium chloride concentration. The sodium chloride concentrated solution is subjected to electrolysis bath. The ammonium chloride concentrated solution is electrolyzed by electrochemical reaction, where electrolysis voltage is 2-3V and electrolysis current density is 0.3-lA/cm2. The electrolyzed solution is input to osmotic power plants for generating electricity. Chlorine and hydrogen produced by electrolysis are entered into hydrogen chlorine fuel cells after a drying treatment. The fuel cells produce direct current to supplement electrical energy through a rectifier.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view illustrating a method for performing wastewater treatment for rare earth elements.