Direct UV photodegradation of peroxide pharmaceutical wastewater and its resource utilization
This study employed direct UV photodegradation to investigate the degradation performance of tert-butyl hydroperoxide(TBHP)wastewater.The influence of initial TBHP concentration,temperature,pH value,and coexistence of inorganic ions on TBHP degradation efficiency was analyzed.The results demonstrated that under conditions of TBHP concentration at 1.75g·L-1 and pH at 3,UV photodegradation of TBHP followed a pseudo-first-order kinetic model.The apparent degradation rate constant reached 0.217min-1.Additionally,the products and pathways of UV photodegraded TBHP were analyzed using GC-MS.Furthermore,the study explored the direct UV photodegradation process of mixed TBHP wastewater with other industrial wastewaters.The outcomes indicated that the degradation efficiency of organic compounds in mixed wastewater was superior to that of individual wastewater.This approach also presents a novel avenue for the resourceful utilization of TBHP wastewater.