Fusion wastewater treatment and reuse method using microfiltration and reverse osmosis membrane and its apparatus

摘要

The present invention relates to a method and apparatus for treating and reusing hydrofluoric acid-containing wastewater. In the present invention, hydrofluoric acid wastewater generated at an industrial site is treated using microfiltration and reverse osmosis membranes, So that it can be used for reproduction. In the method of treating hydrofluoric acid wastewater according to the present invention, the pH is adjusted by using a coagulant, the fluorine ions contained in the acid wastewater are solidified into fluorinated compounds, and the solid formed by the coagulation aid is coordinated; Separating the coagulated solids by microfiltration in the above step to discharge the treated water from which turbidity component-containing solids and solids are removed; Adsorbing and removing organic substances contained in the treated water discharged in the step using activated carbon; And removing unreacted fluorine ions, other dissolved salts, and residual organic substances contained in the treated water from which the organic matter has been removed in the above step using a reverse osmosis membrane to discharge reusable treatment water.