The Global Water Challenge
Over-extraction of groundwater has severely transformed once-fresh resources into brackish water with salinity levels far beyond the limits of conventional treatment technologies. In many regions, underground water now falls into different salinity categories:
- Low salinity (< 2,000 ppm)
- Moderate salinity (up to 10,000 ppm)
- High salinity (exceeding 20,000 ppm)
This means that vast amounts of water, once a lifeline for communities and industries, are no longer accessible through current commercial solutions.
The Limits of Conventional Technology
The challenges of treating brackish and seawater are compounded by the limits of today’s Reverse Osmosis (RO) membranes:
- Brackish Water RO (BWRO) membranes
These are typically designed to handle salinity levels of up to 5,000–8,000 ppm. Beyond this threshold, they lose efficiency, making them unsuitable for treating much of today’s brackish groundwater. - Seawater RO (SWRO) membranes
Designed for seawater desalination, these membranes can operate effectively at salinity levels up to ~32,000 ppm. However, in many countries, seawater salinity exceeds 40,000 ppm, forcing operators to invest heavily in costly pre-treatment systems to lower salinity before filtration.
The result is clear: current BWRO and SWRO membranes cannot reliably treat moderate-to-high brackish water without consuming extreme amounts of energy, nor can they handle the increasing salinity levels of seawater efficiently.
The Market Gap
There is a pressing gap in the global water treatment market:
- No commercially available BWRO or SWRO membrane today can effectively address the challenge of treating moderate-to-high brackish water (10,000–25,000 ppm).
- This leaves governments, industries, and communities with limited and expensive options, often requiring energy-intensive processes or extensive pre-treatment systems that are unsustainable in the long run. GEWT’s Breakthrough Innovation
To close this critical gap, Green Energy Water Treatment (GEWT) has developed and patented a first-of-its-kind High-Flux BWRO / Low-Energy SWRO membrane.
This groundbreaking technology is uniquely engineered to:
- Treat a wide range of water sources: from low-salinity brackish water all the way up to 25,000 ppm, and seawater with salinity levels up to 45,000 ppm.
- Significantly reduce energy consumption, making the treatment process more cost-effective and environmentally sustainable.
- Deliver high flux and salt rejection, ensuring that water output is both abundant and of high quality.
- Withstand harsh operating environments, offering unmatched durability and long-term reliability.
Transforming the Future of Water Treatment*
This innovation positions GEWT at the forefront of next-generation water treatment technologies, redefining what is possible in an era of growing water scarcity. By combining high performance with energy efficiency, GEWT is enabling:
- Governments to secure sustainable water resources for their populations.
- Industries to cut costs and reduce environmental impact.
- Communities worldwide to access safe, clean, and affordable water even in regions where conventional solutions fail. GEWT’s patented membrane isn’t just a product — it’s a solution to one of the world’s most urgent challenges. By bridging the gap between brackish and seawater treatment, we are helping to shape a more sustainable and water-secure future.