Chemistry

This may be a bit crude, but if we can convert urine to urea, it may be a great help to poor farmers.
I'm not convinced about the system!

Harisen writes:

This guy makes urea from urine.

He is collecting 3 litres of urine from his house( himself, wife and 4 children).

He has won a tender to supply 500l 0f urine to a farmer in Lilongwe to make urea.