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.
KAUST and NADEC have signed an MoU to collaborate on agricultural research, technology development, and professional training to enhance Saudi Arabia's food systems. The partnership aims to translate scientific insights into practical solutions for a resilient and stable food and agriculture sector. KAUST researchers will gain access to NADEC's fields to test and scale solutions. Why it matters: This collaboration between a leading research university and a major agricultural company can accelerate innovation in sustainable food production, addressing critical challenges like water scarcity and rising temperatures in the region.
KAUST researchers have developed an ultrathin polymer-based membrane for water desalination with high water flux and salt rejection. The membrane utilizes two-dimensional porous carbonaceous materials with subnanometer-sized molecular transport channels. The membrane outperformed existing desalination systems using carbon nanotubes and graphene in forward and reverse osmosis. Why it matters: This innovation offers a promising alternative for efficient and cost-effective desalination, addressing critical water scarcity challenges in the region and beyond.
KAUST researchers led by Pascal Saikaly are developing microbial electrochemical technologies (METs) for wastewater treatment and energy recovery. The team combines METs with membrane filtration, creating a hybrid air-biocathode microbial fuel cell-membrane bioreactor (MFC-MBR) for simultaneous wastewater treatment and ultrafiltration. This system uses an electrically conductive ultrafiltration membrane as a biocathode for electricity generation and passive oxygen transfer. Why it matters: This innovation offers a sustainable approach to water reclamation by reducing energy consumption and producing reusable water, which addresses critical water scarcity challenges in the region and globally.
KAUST's Urban Lab is developing green infrastructure solutions to combat the urban heat island (UHI) effect in arid climates. Researchers are focusing on using vegetation for shading and evapotranspiration, as well as increasing albedo with reflective surfaces. The team is using machine learning to analyze heat patterns and urban expansion to inform sustainable architecture and landscape design. Why it matters: This research is crucial for creating more livable and sustainable urban environments in Saudi Arabia and other regions facing desertification and water scarcity.
Professor Peng Wang of KAUST has received the Mohammed bin Rashid Al Maktoum Global Water Award for his research using renewable energy for clean drinking water production. The award, given by Suqia UAE, recognizes projects with sustainable solutions to water scarcity, focusing on technologies that produce, distribute, and purify water using renewable energy. Wang's research focuses on leveraging solar energy to develop inexpensive, low-carbon technologies for clean water production suitable for off-grid communities. Why it matters: This award highlights the importance of innovative research in addressing water scarcity challenges in the Middle East and globally, aligning with the UAE's commitment to sustainable development goals.
MEDAD, a KAUST spin-off, won the 2020 MEED Sustainability Medal for its "Innovative Hybrid Solar Desalination Cycle." The MEDAD hybrid cycle desalinates seawater using solar energy at 60-80 degrees Celsius, combining adsorption with multi-effect desalination. The cycle achieved performance levels of 20% of thermodynamic limits and a water production cost of $0.48/m3. Why it matters: This award recognizes the potential of KAUST-developed technology to address critical water scarcity challenges in the GCC region through sustainable and cost-effective desalination.
KAUST Professor Peng Wang has been awarded the 2020 Prince Sultan Bin Abdulaziz International Prize for Water (PSIPW). Wang's research focuses on using solar energy for fresh-water generation, industrial brine treatment, atmospheric water harvesting, and solar PV cooling. His recent work involves a hydrogel cooling panel for solar cells to improve efficiency in hot climates. Why it matters: This award recognizes impactful research addressing water scarcity and energy challenges in arid regions like Saudi Arabia through innovative solar-driven technologies.