Algae is one of the most versatile photosynthetic organisms, being used for feedstock, fuel and nutrition. Putting them in homes and on roofs can help ease our carbon footprint and reduce circulation of harmful gases.

The algal CO2 scrubber project aimed to explore the growth of algae and develop a device to be used in homes with an effluent chimney. Algae in the scrubber would have access to sunlight and carbon dioxide for growth (and thus filter out the gas).

The scubber includes a lasercut wooden base, acrylic housing tubes, two aquarium pump, as well as a colour sensor and temperature sensor to monitor growth. This algae would reach carrying capacity after 2 months, which would ideally be harvested for biodiesel conversion.