in lima , peru , ponds full of algae Nd other small organisms clean up the wastewater.
After 20 days , it is safe for reuse.
Currently many factories, hotel chains,and apartment buildings around the world are installing water recycling systems.
We all need to be part of the solution,too.
We need to learn how to use our water wisely.
So the next time you have a drink or take a shower, think of how fortunate you are, and safe water for life