Global climate change and the overwhelming overpopulation of the Earth lead to deficiency of drinking water. The solution can be the recycling
Water resources - Wikipedia
How is wastewater cleaned? American Geosciences Institute
California OKs new rules for turning wastewater directly into drinking water
Why Wastewater Treatment is Important
In arid U.S. West, water agencies look to direct potable reuse
Reclaimed water - Wikipedia
Водата, която пиете от чешмата, е била изпивана досега поне 10
Water reuse – are opportunities going to waste?
Researchers propose new structures to harvest untapped source of fresh water
Will we be converting wastewater to potable water? It appears to be a necessity
Waste water management
Водата, която пиете от чешмата, е била изпивана досега поне 10
The utilization of reclaimed water: Possible risks arising from waterborne contaminants - ScienceDirect