Wastewater Treatment and Reuse Method using Microfiltration and Reverse Osmosis Membrane and Its Apparatus

摘要

The present invention relates to a wastewater treatment and reuse method and apparatus therefor including hydrofluoric acid, and in the present invention, by treating hydrofluoric acid wastewater generated in an industrial site using microfiltration and reverse osmosis membrane, the wastewater is discharged without undergoing a separate filtration step. Recyclable industrial water. Hydrofluoric acid wastewater treatment method according to the present invention comprises the steps of adjusting the pH using a flocculant and at the same time solidifying fluorine fluoride ions contained in the acid wastewater and coarsening the solids formed by the flocculating aid; Separating the coarse solids in the step by microfiltration to discharge the solids containing the turbidity component and the treated water from which the solids are removed; Adsorbing and removing the organic matter contained in the treated water discharged in the step using activated carbon; And removing unreacted fluorine ions, other dissolved salts, and residual organic matters contained in the treated water from which the organic matter was removed using a reverse osmosis membrane to discharge the reusable treated water.