High-efficiency biomass production using alkaliphilic microalgae in open ponds
Innovative cultivation of alkaliphilic microalgae in open ponds enhances biomass productivity using controlled CO2 from flue or biogas under sunlight. This process also augments byproduct accumulation during dark periods, offering sustainable solutions for biofuel and bioproduct industries.
Overview
The proposed solution leverages an indigenous Mexican alkaliphilic microalgae consortium to significantly boost biomass productivity in open ponds. By utilizing controlled loads of CO2 from flue gas or biogas under sunlight, this method enhances growth rates and promotes the accumulation of valuable byproducts, such as lipids, polyhydroxyalkanoates, and pigments, particularly during dark periods. This approach not only optimizes biomass yield but also offers a sustainable method to sequester CO2 and produce biofuels and bioproducts.
Technical specifications
- Microalgae consortium: Adapted to thrive in alkaline, high-salt outdoor conditions.
- CO2 source: Utilizes flue gas or biogas for improved CO2 mass transfer during daylight.
- Operational strategy: Controlled CO2 loads based on sunlight irradiance and nitrogen deprivation at night to enhance byproduct accumulation.
- Future setup: A 300 L high-rate algal pond with an absorption unit for real-time monitoring of luminosity and CO2 consumption. Investigating the use of nanomaterials as stressors to further boost production.
Technology readiness level
This technology is currently at TRL 5, with validation efforts focused on scaling and optimizing operational conditions in a pilot setup.
About Universidad Nacional Autónoma de México
Universidad Nacional Autónoma de México (UNAM) is a comprehensive public research university headquartered in Mexico City, serving one of the world’s largest student bodies and spanning campuses and research units nationwide. Its distributed institutes and regional sites position laboratories near Mexico’s major industrial corridors, facilitating sponsored collaborations, contract testing, and access to shared core facilities and pilot-scale environments. Dedicated corporate engagement and liaison teams streamline agreements, visiting researcher arrangements, and workforce pipelines. Research is supported by Mexico’s national science and technology funding and competitive international programs, with additional backing from state and industry partners. A centralized technology transfer function manages IP, licensing, and startup formation, complemented by incubators and entrepreneur support across multiple campuses.
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