METHOD FOR REGENERATION OF MEMBRANES FOR REVERSE OSMOSIS PROCESS

摘要

A method of regenerating reverse osmosis membranes consists in washing with citric acid solution. Washing is carried out in two alternating steady-state modes. The first mode is carried out under the operating pressure less than atmospheric pressure, under the temperature equal to the steam saturation temperature under the operating pressure – t. The second mode takes place under the pressure exceeding the saturation pressure by 20-30 %, - t. The ratio of the washing time under saturation pressure tto the washing time under the elevated pressure is.