RO Membrane

The World’s Only Producer of the Breakthrough Thin-Film Nanocomposite (TFN) Technology

LG Chem’s NanoH₂O™ RO membranes for seawater and brackish water applications are engineered using advanced Thin Film Nanocomposite (TFN) technology.

Our seawater RO membranes offer industry-leading salt rejection of up to 99.89%, ensuring superior desalination performance.

LG Water Solutions’ proprietary TFN technology enhances membrane efficiency by embedding nanoparticles onto the membrane surface. This cutting-edge innovation significantly improves water permeability (flux) without compromising salt rejection, resulting in highly effective and dependable reverse osmosis performance. Compared to conventional Thin-Film Composite (TFC) membranes, our TFN membranes deliver superior salt rejection, as illustrated below:

Features

• High desalination rate
• High flow
• Contamination-resistant

Product Functions and Structure

• LG Chem’s NanoH2O™ line of reverse osmosis membranes feature benign nanoparticles encapsulated into the top polyamide layer.
• LG Chem’s NanoH2O™ RO membranes deliver the highest flux and the highest salt rejection of any RO membrane on the market.
• All of LG Chem’s NanoH2O™ RO membranes are Standard 61 certified by NSF international for the production of drinking water.

Principles of Osmosis and Reverse Osmosis

Osmosis is a natural process where water moves from an area with low total dissolved solids (TDS) through a semi-permeable membrane to an area with higher TDS. This movement occurs to equalize the concentration of solutes on both sides of the membrane.

What is Reverse Osmosis?

Reverse osmosis is a water purification process in which pressure greater than the natural osmotic pressure is applied to the side with higher TDS. This forces water to move through the semi-permeable membrane toward the side with lower TDS, effectively reversing the natural direction of osmosis.