Here’s a round-up of some of the participants at Greenbuild 2010, which is filling eight football fields’ worth of exhibition space in Chicago:
– The folks at Zero Flush—a company in Kissimmee, Florida that builds no-water, non-flushing urinals—started with this premise: water is precious; urinal maintenance is a nightmare.
They work like this.
Zero Flush urinals have a basin and a replaceable filter that fits in a tray. The filer contains an odor-blocking solution made of mostly vegetable oil.
Urine is 96 percent water, 4 percent solids (a combo of urea, chloride, sodium, potassium, and creatine, etc.). Urine flows down the urinal and is filtered through the vegetable oil solution. The liquid portion of urine flows directly through the oil and out to municipal sewage pipes. The solid portion is retained in the oil chamber.