John Todd

John Todd (born 1939) is a biologist working in the general field of ecological design. He addresses problems of food production and wastewater processing by using ecosystems technologies that incorporate plants, animals and bacteria.

https://en.wikipedia.org/wiki/John_Todd_(Canadian_biologist)
https://en.wikipedia.org/wiki/Living_machine

Dr. John H Todd on Planetary Healing & Ecological Design

John Todd – The Ecological Design Revolution | Bioneers: