05/05/2023
The high surface area to volume ratio of nano bubbles means that they can provide a large contact area between gas and liquid phases, which can increase the efficiency of gas transfer and promote the dissolution of gases like oxygen into the liquid. This can be particularly useful in wastewater treatment, where the presence of dissolved oxygen can promote the growth of aerobic bacteria that help to break down organic pollutants.
Nano bubbles can also help to enhance chemical reactions, such as the oxidation or reduction of pollutants. The presence of reactive species, like hydroxyl radicals or hydrogen peroxide, generated by the collapse of nano bubbles during cavitation can promote the degradation of pollutants and improve treatment efficiency.