Exploring Use of Wastewater in Agriculture
With food demand and water scarcity on the uptick, it's time to stop treating wastewater like garbage and instead manage it as a resource that can be used to grow crops and help address water scarcity in agriculture. Properly managed, wastewater can be used safely to support crop production — directly through irrigation or indirectly by recharging aquifers — but doing so requires diligent management of health risks through adequate treatment or appropriate use.
http://www.fao.org/news/story/en/item/463433/icode/
Timothy Neesam