HYDRO MEMBRANE 100 GPD

Reverse osmosis (RO) and nanofiltration (NF) are filtration methods used to remove dissolved solids from solutions. These techniques apply pressure to separate solutes on one side of a selective membrane, allowing pure solvent to pass to the other side.

Structure and Composition of RO Membranes

RO membranes typically consist of three layers:

• A polyester support web
• A microporous polysulfone interlayer
• An ultra-thin polyamide barrier layer on the surface

How Reverse Osmosis Works

In reverse osmosis, a partially permeable membrane separates contaminants from water. Applied pressure overcomes osmotic pressure, allowing solvent molecules to pass through while retaining contaminants.

Reverse Osmosis vs. Filtration

Unlike filtration, which relies on size exclusion, reverse osmosis depends on solvent diffusion through a membrane. The process is influenced by pressure, solute concentration, and other factors.