Muscat – A groundbreaking desalination technology developed in Oman is offering a promising solution to the region’s water scarcity. Dr Mohammed Said al Saidi, Assistant Professor at University of Technology and Applied Sciences, has introduced a novel method that utilises waste heat from industrial processes to turn seawater into fresh, potable water.

This innovation offers a sustainable alternative to conventional desalination techniques, such as reverse osmosis, which are energy-intensive and susceptible to operational issues.

In an interview with Muscat Daily, Saidi explained how his project, titled ‘From Waste Heat to Clean Water’, emerged from the need to manage excess heat at  industrial hub Sohar Port. The waste heat, instead of being lost, is now being used to power this new desalination process, which could have widespread applications in other water-scarce regions.

The project is a collaborative effort between the university and Majis Industrial Service Company. Highlighting its significant contribution to Oman’s research and development goals, Saidi said, “This project represents a critical advancement in Omani-led R&D, addressing the water needs of not only Oman but the wider region.”

Unlike traditional desalination methods that rely on pressure or thermal distillation, this new approach uses absorbent materials to capture water vapour from saline solutions, leaving behind salt and impurities. The absorbents, which include advanced materials like silica gels and metal-organic frameworks, efficiently extract moisture, which is later purified for use. “The absorption technology offers greater energy efficiency and lower operational costs than reverse osmosis and other traditional methods,” Saidi informed.

While reverse osmosis remains the most commonly used desalination technology in Oman, it is known for high energy consumption and vulnerability to challenges such as algal blooms. Saidi pointed out that absorption technology is more adaptable to marine conditions, reducing risks and offering a more environmentally sustainable solution.

However, the project still faces challenges, particularly in optimising the absorbent materials for better water capture and ensuring the system’s scalability. “Refining the process for efficient water release and scaling it for industrial use are key areas we are working on,” Saidi added.

The project aligns with Oman Vision 2040, which emphasises sustainability and technological innovation. By developing a low-energy, eco-friendly desalination system, the project not only addresses Oman’s pressing water needs but also supports its environmental and economic goals.

Saidi highlighted the importance of collaboration between academia and industry in fostering local expertise and advancing economic diversification.