Ultrafine bubbles as a treatment method of brewery wastewater for reuse as a nutrient addition to a rooftop greenhouse.

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St. Lawrence College has entered into a novel innovation partnership with Avling Brewery, to investigate novel methods of treating and handling brewery wastewater, for reuse by its onsite greenhouse. Avling Brewery, like many breweries in Canada, produces great beer, but also generates a lot of liquid waste as a by-product of the brewing process. This waste is high in nutrients, which can put a strain on wastewater infrastructure if it is released to the municipal wastewater treatment system. However, the nutrients if able to be recovered may serve as an effective fertilizer for plants. Using novel ultrafine bubble technology, able to breakdown wastewater, Avling is looking to St. Lawrence College to identify whether wastewater from Avling's brewing process can be treated and serve as a nutrient source for its greenhouse, substantially reducing its environmental footprint while also limiting the need for other fertilizers.