Woongjin Chemical manufactures membranes for reverse osmosis, nanofiltration and ultrafiltration, which are mainly used for seawater and brackish water desalination, wastewater recycling and reuse, and ultrapure water production (industrial use). We also produce micro-filters used for water treatment and processing in the electronics, pharmaceutical and food and beverages industries.

Among our RO membranes, the FRM (fouling resistant membrane) has been very well-received, while brackish water, ultrapure water and seawater elements are gaining notable references at sites throughout the world. Currently, much R&D and focus is geared towards the development of seawater elements with high flux and boron rejection, chlorine resistant membranes, 16 inch elements, and overall, products with low-voltage and high salt rejection to save operation and installation costs.

The reverse osmosis membrane is a thin layer that does not let certain ions permeate through it. Due to its ability to remove ions from solutions, it is mainly used to remove salt from aqueous solutions.

Before the 1990’s, cellulose acetate was used as the membrane material but was replaced by a polyamide compound because of it offered higher salt rejection and lower energy costs. Because of its ability to remove dissolved ions in a solution without phase inversion, it is used to remove salt and TDS in water.

From converting seawater into fresh water, production of ultrapure water for washing electronic parts and medical and pharmaceutical purposes, use in the food and beverage industries, to recycling of waste water and sewage the applications of CSM RO membranes are truly diverse.

Based on 15 years of experience and technology accumulated through manufacturing and marketing of our reverse osmosis membranes, we aim to provide better technical service. Also, we are doing our best to ensure finer quality, competitive prices and on-time delivery for our customers.