I reported previously (Dec 2017) about Ben Gurion University Professor Amit Gross’s natural biofiltration treatment of wastewater. At the Kornmehl Goat Cheese Farm and Restaurant in the Negev desert, Anat and Daniel Kornmehl use these techniques to help make their desert oasis bloom.

https://aabgu.org/an-oasis-for-people-and-goats-in-the-negev/