Abstract: A reactor system for treating and degrading a per- and polyfluorinated alkyl substances (PFAS) and organic material contaminated material includes a reaction vessel and an ultraviolet (UV) light source. An electron donor and surfactant solution is introduced into the reaction vessel configured to combine with UV light to degrade PFAS into fluoride ions and simple carbon compounds via a photoactivated advanced reduction processes (UV-ARP). An oxidant solution is added to the reaction vessel at a preset dosage and at a sufficient concentration to degrade the surfactant via an UV advanced oxidation process (UV-AOP). The UV light source can be activated and continuously emit UV light to degrade the surfactant and organic material until a desired reduction of surfactant concentration and reduction of PFAS concentration are achieved.