Researchers at King Abdullah University of Science and Technology (KAUST) have demonstrated a novel method to permanently convert carbon dioxide (CO₂) into solid rock underground. This system recycles water already present deep underground, addressing the critical water scarcity challenge for CO₂ mineralization in arid regions. In a field trial in western Saudi Arabia, 131 tons of CO₂ were injected into ancient basalt formations, with approximately 70% mineralized into solid minerals within ten months. Why it matters: This breakthrough significantly expands the global potential for carbon mineralization as a secure CO₂ storage solution, particularly in water-stressed industrial areas.
Al-Miyah Solutions, a KAUST spin-off, has installed a decentralized wastewater treatment unit in Rabigh, Saudi Arabia. The mobile, modular technology converts wastewater into reusable water for areas lacking centralized sewer access, addressing a need for 40% of Saudi households. The technology, developed at KAUST's Water Desalination and Reuse Center, uses aerobic granular sludge and gravity-driven membrane filtration. Why it matters: This deployment offers a sustainable and cost-effective solution for wastewater treatment and reuse in remote areas of the Kingdom, reducing reliance on costly centralized systems.
Professor Pascal Saikaly of KAUST has been named the 2024 International Honorary Member of the American Academy of Environmental Engineers and Scientists (AAEES). Saikaly was selected for his contributions to the advancement of environmental protection, specifically his work in developing sustainable biotechnologies for wastewater reclamation and reuse. He developed a patented technology for a decentralized wastewater recycling plant demonstrated at full scale in Saudi Arabia. Why it matters: This award recognizes important work in sustainable wastewater treatment, an area of critical importance for water-scarce regions like Saudi Arabia.