Gallery: Columbia University Students Design a Composting Public Restro...

Since composting toilets produce nitrates and nitrites, the team utilized the gasses produced to inflate the cloud like canopy above. Thus, the canopy signified the location of the public restroom, while being powered by the restroom -- an incredible lesson of sustainability, while providing students and visitors with a convenience.

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1 Comment

  1. Atematic October 12, 2011 at 11:37 am
    Good to see this conversation getting a more public forum - literally! - and I love the idea of inflating the cloud with byproducts of the breakdown of the waste, but worth noting that it probably couldn't truly float as the gases produced would be mostly CO2 and water vapor (nitrates are solids) and both are heavier than air.