A method for treating a separation facility is provided according to the
invention. The separation facility includes a plurality of membranes for
providing separation of a feed product. The method includes steps of
providing liquid flow through a plurality of membranes; treating the
plurality of membranes with a multiple phase treatment composition
comprising a gaseous phase and a liquid phase at a volumetric ratio of
the gaseous phase to the liquid phase of at least about 5:1; and
providing a liquid flow through the plurality of membranes.