MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202541121042 A) filed by Kalasalingam Academy Of Research And Education, Virudhunagar, Tamil Nadu, on Dec. 3, 2025, for 'design of sustainable continuous tubular photo bio reactor from recycled fluorescent tube lights for algal cultivation.'
Inventor(s) include Harikrishnan. S; Dr. B. Vanavil; Dr. R. Thangaraj; Aanandhalakshmi R; P. Sri Shankar; M. Girish. V. N. Koushik Kumar; V. Sai Kiran Reddy; and R. Prakash.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "The titled invention discloses to a continuous tubular photo bioreactor intended for the production of algae, specifically using fluorescent tube lamps that are not working and contain mercury filaments, which, if disposed of inappropriately, could pose a risk to the environment The technology reduces e-waste by reusing old fluorescent bulbs (1) and offers an economical, sustainable, and energy-efficient way to cultivate algae. A dual capacity aquarium air pump (13) with ball spargers (14) for continuous aeration and CO2 supply. LED strips(7) for light exposure, a submersible water pump (6) for effective circulation, and a transparent PVC pipe system(2) are all included in the bioreactor. With optimal light, water flow, and temperature management, the bioreactor's continuous operation design allows for the sustained growing of algae like Chlorella species, increasing growth rates and biomass production. The system is perfect for small-scale algae growth operations, research, or the generation of biofuel because it requires little upkeep and has a cheap initial cost. This idea provides a sustainable alternative for the algae business, especially in underdeveloped nations or educational institutions, thanks to its creative recycling of fluorescent tubes, low energy consumption, and use of environmentally acceptable materials."
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