I found the website for Novaquatics who completed a comprehensive, interdisciplinary report on urine-separating technologies such as the NoMix toilet described in the article.  The website is very informative.  The group has researched possible advantages and disadvantages of different methods of storage, disposal, transportation, and treatment of the urine.  They mention that by storing the urine in a tank at the home and transporting it to a wastewater treatment facility when full it could eliminate the "morning peak" of nitrogen and phosphorus at the plant that occurs during morning hours.  They also discuss potential treatments for the removal of micropollutants like those arising from the use of pharmaceuticals of which 70% typically leaves the body in urine.  The subject of agriculture is also tackled by testiing urine as a fertilizer. 

There is also an interactive tool that explains the technology behind the NoMix toilet.


On Tue, Jul 13, 2010 at 8:06 AM, Jason Evans <[log in to unmask]> wrote:
Interesting piece on that dives into the importance of
fertilizers, and a European toilet designed to recycle phosphorus:

So even though the phosphorus atoms never disappear, they're not available
as fertilizer. The world has between 4 billion and 8 billion tons of
phosphate reserves, and we extract one-eighth of a billion tons per year.
So simple arithmetic says we could "run out" of phosphorus in about 30
years. The end could come even sooner if we ramp up biofuel production,
since switchgrass, corn, and other biofuel crops will require loads of
phosphorus-rich fertilizer. And unlike nitrogen, there's no other ready
source than mining.

What can we do? There's scrimping, of course, but humans almost never do
that well, (See peak oil.) We prefer technical solutions. One promising
strategy calls for recycling P. And the easiest way to do so is to recycle
pee—through a European technology called NoMix toilets...


Lindsy Iglesias
Undergraduate, University of Florida
School of Natural Resources and Environment
Environmental Science, Sustainability Studies
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