AOP Advantages Disadvantages
US -Versatile technology
-Suitable for small volumes
-Interesting upgrade applications
-Energy consuming technology
-Sonotrode erosion issues
O3 -Strong oxidative power
-Effective for a wide spectrum of pollutants
-Existing full
-scale applications
-Energy consuming
-High operating costs
-Risks associated to ozone generation
O3/UV -More effective than O3 or UV alone -More energy intensive than single processes
H2O2/UV -UV promote •OH formation
-High efficiency
-Turbidity can interfere with UV radiation
Fenton-based reactions -Not as energy intensive as other AOPs -Developing technology
-Need for acidic conditions
UV/TiO2 -Can be performed at higher wavelenghts than other UV-based processes -Developing technology
-Need for pretreatment
Table 2: Advantages and drawbacks of discussed AOPs.