What does advanced oxidation processes mean in practice?
They combine UV, ozone, hydrogen peroxide, photocatalysis or other activators selected for the water matrix.
When does it matter?
AOP may form intermediates and consume oxidant on natural organic matter, so contaminant loss does not prove full mineralisation.
Which solutions are related to it?
Design requires trials, energy and chemical dose, by-product control and often downstream biological or carbon filtration.