Operation management method and reverse osmosis membrane treatment system of reverse osmosis membrane device

摘要

The operation management method of the reverse osmosis membrane apparatus which manages the operation of a reverse osmosis membrane apparatus based on the aluminum ion and / or iron ion concentration of the feedwater and / or concentrate water of a reverse osmosis membrane apparatus. Based on the concentration of aluminum and / or iron ions in the feed water and / or the concentrated water, the suitability as feed water for the raw water, the water temperature of the feed water, the concentration ratio (recovery rate), the pressure (water supply supply pressure of the reverse osmosis membrane, the concentrated water pressure, the treated water Pressure), concentrated water yield, continuous operation period, cleaning time, cleaning frequency, and replacement timing of the reverse osmosis membrane.