one of the solutions to the problem of water conservation is to recycle wastewater when you flush the toilets at stensund
folk college near stockholm sweden you help feed the fish the school treats the wastewater in a greenhouse where it is then used to provide water to plants and fish in an integrated culitvation system in lime peru ponds full of algae and other small organisms clean up the wastewater after 20 days it is safe for reusee currently many factories hotel chains and apartment buildings around the world are installing water recycling systems