Here is our urine separator featuring in a fantastic project from Green Mountain College in Vermont, USA, that first came up with the OTIS - Optimal traveling Independent Space - and is working on the second version now. In relation to the second project, Simon James from the College wrote,
"We are now working on the second iteration of the concept. We are improving on certain things and reusing other concepts. One of the designs that worked really well is the composting toilet we designed using your urine separator."
Here is a piece from gizmag about the project... http://www.gizmag.com/otis-green-mountain-college/30534/