Breakthrough engineering project at Mexico’s top university offers sustainable potable water solutions for isolated communities in Baja California and Sonora.
By The News Staff, Science & Environment Desk | The News México
KEY TAKEAWAYS
- UNAM engineering team develops solar-powered desalination system cutting energy use by 40%.
- Prototype produces 5,000 liters of clean potable water daily in off-grid coastal communities.
- Zero-liquid-discharge system prevents harmful brine runoff into delicate marine ecosystems.
- Federal agencies evaluating deployment across Baja California Sur and Sonora.
MEXICO CITY — Scientists at the National Autonomous University of Mexico (UNAM) have successfully developed an autonomous solar-powered desalination prototype capable of providing clean drinking water to coastal communities across Mexico’s arid northwest.
The breakthrough system, designed by researchers at UNAM’s Institute of Engineering, combines multi-stage membrane distillation with high-efficiency photovoltaic thermal collectors, reducing energy consumption by more than 40% compared to traditional reverse-osmosis plants.
Pilot testing in coastal fishing settlements along the Gulf of California demonstrated that a compact, modular unit can generate up to 5,000 liters of purified water per day without relying on fossil fuels or connection to the national electric grid.
Low-Cost, Decentralized Sustainability
“Traditional desalination facilities require massive electrical infrastructure and capital investment, making them inaccessible for small, remote settlements,” explained lead researcher Dr. Elena Morales during a presentation at Ciudad Universitaria. “Our technology provides a decentralized, low-maintenance solution powered entirely by Mexico’s abundant coastal solar radiation.”
The system also incorporates a zero-liquid-discharge mechanism that extracts mineral salts from residual brine, minimizing environmental impact on marine ecosystems.
Scaling Up for National Implementation
With northern Mexico facing unprecedented drought cycles and water stress, federal and state environmental agencies are evaluating plans to scale the technology across dozens of vulnerable fishing cooperatives in Baja California Sur and Sonora.
UNAM has filed for national and international patents and is collaborating with the National Council of Humanities, Sciences and Technologies (Conahcyt) to establish manufacturing partnerships with domestic green-tech firms.
LOCAL CONTEXT & ACRONYM GUIDE
- UNAM (Universidad Nacional Autónoma de México) – Mexico’s premier public research university
- Ciudad Universitaria (CU) – Main UNAM campus in Mexico City, a UNESCO World Heritage site
- Conahcyt – National Council of Humanities, Sciences and Technologies