January 17, 2012
Chicago Urban Farm Aims for Environmental and Economic Self-Sustainability

It’s an innovative solution, based on a principle known as aquaponics, where everything exists to work together. Tilapia fish waste is high in ammonia which nourishes the plants; the plants clean the water, which can then be returned to the fish. The businesses within the building work in symbiosis, too. So, waste from the brewery provides the perfect growing material for the mushroom farm.

(Source: alexabboud)

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