"What if Cape Cod's wastewater problem could be its own solution? That's the idea behind a wall of vertically stacked, futuristic-looking tubes housed in a 2,300-square-foot greenhouse on the ZooQuarium property on Route 28.
Inside the tubes, a soupy green mixture of algae and water circulates day and night, infused with carbon dioxide and just the right amount of light from the sun or light-emitting diodes, making the greenhouse glow red at night. The algae feed on nutrients in the water, grow, produce oxygen and are eventually harvested for fish food, fertilizer, biofuels or bioplastics. Cape Cod Times
Aquagen – a hybridized photo-bioreactor technology for wastewater cleansing. Developed under the roof of LBRC, Aquagen is now an independent and growing commercial enterprise and will continue to be a central part of LBRC buildings' water treatment infrastructure. The Aquagen technology incorporates an algae‐based system that removes nitrogen, phosphorus and other contaminants from wastewater. The result of this closed‐loop treatment process is clean water and dried algae, which can be incorporated into plastics, fertilizers, biofuels, renewable energy systems, and used as basis for products like cosmetics, pigments, and oils. Source: Lewis Bay Research Center
I believe the technology was developed by Aquanos, an Israeli company.