As various regions of the country struggle with stressed drinking water supplies, direct potable reuse of wastewater is gaining acceptance.
Various hurdles stand in the way, and one of them is cost. There’s no question that technology can treat wastewater to meet drinking water standards; the question is how. One obvious solution is reverse osmosis, but that can be expensive.
The Gwinnett County (Georgia) Department of Water Resources in 2017 completed a pilot study to test the feasibility of a different method: two-stage ozone-biological filtration, without RO. The project found that the method appears feasible, in terms of both treatment quality
