W EEKLY EDITION AUG 30, 2017
Urine Luck! ...continued
By Karleen Kos, PSAI Executive Director
Above: Rich Earth Institute's urine collection and proce ssing depot. The
current scale of the operation is comparatively small, and local donors
collect urine for the organization's experiments. Don't worry! The jug in the
foreground was provided for demonstration purposes at the conference.
People don't just d rop off the family's contributions at the door.
Above: Bulk urine storage on a farm using
the liquid for fertilizing its hay fields.
Above: An on site urine pasteurizer
used to make urine safe for land application
PAGE 3
Left: A commercially available urine
diversion toilet manufactured in
Sweden. Though the world is a long
way from implementing these in
homes, the design is being
perfected so that urine diversion can
eventually occur at the source.
Right: Samples of urine in the lab.
The lightest colored tubes are those
containing the most water, and this
is how urine is produced by humans.
The darker samples have the water
removed to varying degrees,
increasing the concentration of the
nutrients (mo stly nitrogen) in the
tube. Rich Earth is experimenting
with processes for extracting the
nutrients and reclaiming the water.
