I prefer and agree to collect the urine fresh from the source using
charcoal without loosing any value. Here is what I am doing.
I requested my kids to urinate in the clay jars (~ 6 inches diameter
and ~10 inches height) with very fine holes (2mm dia) at the
bottom filled with charcoal produced from using Magh-1 woodgas stoves.
These jars are kept in the toilet are able to absorb about 200 ml of
urine (single time) easily with out any leakage at the bottom. Between
the intervals of urination of about 6 hours duration, the moisture is
reduced to some extent, but always wet and cool because of clay
jars. The total urine per day was around 500 ml. After about 10 days I
could smell something like ammonia from the jar, I thought now it has
reached saturation level. I kept the jar aside in a cool place to use
for experiments. I have not analysed for actual contents in this product.
The advantages / ideas are:
The coolness of the clay jar reduced evaporation losses
Reduction of urine odor as charcoal is used, more acceptance to
collect urine fresh in the toilets, we can easily design urinals free
of smell, instead of using fresheners (napthaline balls, scents,
phenyl, etc) in the toilets.
The schools are the best places to get kids urine, disease free and no
No flies are seen sitting on the jars, but some big black ants seen to
enjoy drinking the urine spilled ? ?
And many other advantages as discussed earlier in the group.