A few years ago, when I was still at WSP Built Ecology, I did a presentation at Green Cities. It was called “Getting our shit together – A history of human sanitation and how it might apply to building design in the future”
It was fun, it tapped into my unhealthy obsession with composting toilets, and people remembered it at the dinner the following night.
The biggest message was that the most effective ways of dealing with human waste involve separating the solids from the liquid. It makes dealing with both waste “streams” easier. In fact, most of the waste water treatment that’s done is to deal with the salts associated with urine.
Recently, a friend posted a great link to a Smithsonian magazine article discussing the historic uses of urine.
Maybe we could be inspired to find some way to include urine diversion in our projects and set up some social enterprise to make good use of the urine?