KAUST researchers found that wildfire smoke particles act as chemical factories under sunlight, producing harmful oxidants like peroxides. These particles bypass traditional suppression by nitrogen oxides in polluted environments, generating oxidants internally. The study reveals that colored organic molecules in biomass-burning aerosols act as photosensitizers, triggering rapid reactions. Why it matters: The findings highlight that current air-quality and climate models underestimate oxidant production from wildfires, with implications for anticipating health risks and environmental impacts in regions like Saudi Arabia.
KAUST Associate Professor Peiying Hong has developed a wastewater treatment method using anaerobic membrane bioreactor (AnMBR) technology, which converts organic carbon into methane. In partnership with MODON, a pilot program is operational in Jeddah, treating 23,000 liters of wastewater daily using UV light and hydrogen peroxide for disinfection. This system produces clean water suitable for agriculture and biomass for fertilizer, with a smaller footprint and lower energy consumption than traditional aerobic methods. Why it matters: The AnMBR technology aligns with Saudi Vision 2030's water reuse objectives, reducing reliance on energy-intensive desalination and offering a sustainable solution for water-stressed regions.
A KAUST-led team used acoustic technology and net sampling to explore ocean depths in 146 locations worldwide. They found that the biomass of pelagic organisms in the deep sea is much larger than previously thought, especially below productive waters. Deep-sea fauna migrates to shallower areas to feed, transporting carbon to the deep sea. Why it matters: This suggests the ocean's carbon pump is more effective than previously understood, with implications for climate change mitigation strategies.
A KAUST-led research team used acoustic readings to reassess fish populations in the ocean's mesopelagic zone (200-1000m depth). Published in Nature Communications, their findings indicate that mesopelagic fish quantities may be ten times greater than current estimates. The study also suggests that open-ocean ecosystems are as efficient as coastal regions in nutrient cycling. Why it matters: This discovery assigns mesopelagic fish a potentially significant, previously unrecognized role in the global carbon cycle and highlights KAUST's contribution to marine science.
KAUST is collaborating with Coastline Company to convert Red Sea seaweed, specifically Sargassum, into valuable commodities. This initiative addresses the environmental hazard of decomposing seaweed blooms and promotes local employment and a circular economy. KAUST is exploring the use of Sargassum to produce fabric raw materials, alginate for food, biostimulants for agriculture, and fucoidans for therapeutic applications, processing it in a biorefinery manner. Why it matters: This project aligns with Saudi Arabia's sustainability priorities and demonstrates the potential of marine biomass in various industries, including fashion through collaboration with the Saudi Fashion Commission and PYRATEX®.
KAUST is advancing the circular economy through research and collaborations focused on resource efficiency, waste minimization, and sustainability. Researchers are exploring carbon capture, sustainable fuel development, and AI/ML to accelerate circular principles. The university is also working on optimized waste-to-energy conversion, biomass waste conversion, and CO2 conversion for sustainable fuels. Why it matters: This highlights KAUST's commitment to sustainable solutions, which could position Saudi Arabia as a leader in circular economy practices and reduce its reliance on fossil fuels.
KAUST researchers cultivated the extremophile microalga Cyanidioschyzon merolae, which thrives in hot, acidic conditions, using commercial fertilizer at lab and outdoor large-scale culture. This was part of the Development of Algal Biotechnology in the Kingdom of Saudi Arabia (DABKSA) project, a collaboration between MEWA and KAUST. The microalgae consume pollutants and CO2 to produce biomass like proteins and oils, which can be used as sustainable animal feed. Why it matters: This positions Saudi Arabia as a potential leader in algal technologies, strengthens food independence, and contributes to the country's carbon net-zero goal by 2060.
KAUST Ph.D. student Jian You Wang won the outstanding poster award at the 17th International Symposium on Rice Functional Genomics in Taiwan for his work on zaxinone mimics. His research, co-authored by other KAUST researchers and scientists from Japan and Spain, focused on developing easy-to-synthesize compounds that act like zaxinone. Two identified mimics (MiZaxs) significantly increased root growth and biomass in wild-type rice seedlings. Why it matters: This research has implications for developing new rice cultivars with higher yields, addressing global food security challenges.