Comparison of UV‐Cl and UV‐H ₂ O ₂ advanced oxidation processes in the degradation of contaminants from water and wastewater: A review

Applications of advanced oxidation processes (AOPs) in water and wastewater treatment have been the subject growing interest throughout last decade. Although UV/hydrogen peroxide (UV-H2O2) is most established technology among UV-AOPs, UV-chlorine (UV-Cl) emerging as a reliable potentially more cost-effective alternative. Recent studies indicated that UV-Cl may be efficient economically favourable for degradation some chemicals concern from contaminated water. Moreover, terms formation disinfection by-products (DBPs), UV-H2O2 seems to no superiority over UV-Cl. This said, investigation assessment genotoxicity cytotoxicity DBPs required. Additionally, pilot-scale full-scale are required establish alternative UV- H2O2. paper compares AOPs intractable based on practical considerations efficiency, cost, DBP formation, kinetics sensitivity matrix variability. Finally, various modelling approaches reviewed. review showed superior efficiency cost effectiveness can robust many UV-AOPs applications.