Do wastewater plants typically need special permits to use nanobubbles?

Short Answer:

Usually, no. Moleaer nanobubble technology introduces a small quantity of air into water which is quite common in wastewater treatment.

In-Depth Answer:

In most jurisdictions, Moleaer nanobubble systems have been implemented without additional permitting because they do not introduce new regulated substances; however, permitting requirements are site‑ and agency‑specific and are typically confirmed during project evaluation.