Water should be a source of life and not death. The only long term solution is to prevent the pollution of fresh water. Some alternatives are:
Modern Sanitation
The largest and simplest of these solutions is to put systems in place to recover organic waste (polite term for saying piss and shit) viable, where such systems exist, i.e. 40% of the world population. This system works in many cities, and does not cost more than conventional, chemical treatment plants (Timbrell, 2002).
Own Production in a Closed Loop
Designing a plant in which any waste product is either reused or decontaminated on ...