PACT - Reverse Osmosis Systems Brochure

Reverse Osmosis (RO) is a process that uses pressure applied through a membrane barrier to remove dissolved solids from a liquid. The RO process uses cross-flow filtration as compared to depth filtration. The former has three streams while the latter two. In RO the feed flows tangentially over a membrane surface and separates into permeate and concentrate. The concentrate is normally wasted except when energy recovery is viable in which case the high pressure of the concentrate is used to reduce overall power consumption before disposal.