CellinAir Cultivation System: Sustainable Microalgae Production

Universiti Sains Malaysia
Socio-Economics Driver
Agriculture & Forestry
Science & Technology Driver
Bioscience Technology
Technology Readiness Level
Intellectual Property

The CellinAir Cultivation System offers significant competitive advantages by drastically reducing energy and water consumption, making it both sustainable and cost-effective. Its vertical growth system allows for space-efficient scale-up, while high harvesting efficiency reduces costs and increases overall biomass yield. The system's versatility makes it applicable to high-value culture scaffolds for biopharmaceuticals, drug delivery, tissue engineering, wastewater treatment, and nutrient recovery. The system is ready for further development and commercialization. Additionally, it has a strong intellectual property portfolio, including industry design and patent filings for chemically modified membranes that enhance microalgae adherence

Current microalgae cultivation practices are not sustainable due to their high energy and water demands and costly harvesting processes. Specifically, it takes 1.26 – 2.79 MJ of energy to produce 1 MJ of microalgae biodiesel, and 3726 kg of water to produce 1 kg of microalgae biodiesel. Additionally, harvesting costs account for 20-30% of the total biomass cost.

The CellinAir Cultivation System addresses these sustainability issues by allowing microalgae to grow in the air on a membrane surface, with nutrients circulating inside the membrane. This method reduces energy use by over 50% and water use by more than 60%. The vertical growth design minimizes space requirements, while direct air and sunlight exposure promotes growth. Harvesting is made easy through an air purge process, achieving 70-87% efficiency.

The CellinAir Cultivation System features a unique air-liquid interface cultivation method, where nutrients circulate within a membrane, allowing microalgae to grow on the membrane surface. This vertical growth design supports scalable production in a small footprint, and direct contact with air and sunlight enhances the growth rate by up to 377%. The system achieves significant reductions in both energy and water use, and its efficient harvesting process, utilizing air purging, further optimizes the production of microalgae.

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