In regions facing extreme drought, the "toilet-to-tap" movement is gaining traction. Advanced oxidation and reverse osmosis ensure that recycled water is often purer than the groundwater it replaces.
Human urine is approximately 95% water. The remaining 5% consists of urea, chloride, sodium, potassium, and various organic and inorganic compounds. In a standard urban environment, this is treated as waste. In a "recycle" mindset, it is a goldmine. How It Works: Distillation and Filtration piss spew recycle
The biggest barrier to fluid recycling isn't the technology; it's the psychology. The "ick factor" keeps many from embracing the reality that all water on Earth is technically recycled. The water you drink today has, at some point in the last billion years, passed through the biological system of another organism. The remaining 5% consists of urea, chloride, sodium,