| Systematic analysis of sources and characteristics of phenol wastewater was conducted. Among the various treatment methods of phenol wastewater, US/UV and US/H2O2 synergetic technology appeared to be more applicable for the treatment of 4-Cholorophenol and Phenol wastewater.The titanium oxide complex particles doped Fe3+ metal and the pure titanium oxide by Sol-Gel method, and their catalytic reactivity was studied by the XPS,BET, TEM. It was found that photocatalytic reactivity of the TiO2 particles doped Fe3+ was higher than that of the TiO2 particles, which might attributed to the highly dispered metal ions on the TiCh matrix. The ion formed tetrahedrally coordinated Ti-O-M with the TiO2 matrix and active . OH. At the same time, the surface electron state of the complex particles was changed. Which increased the surface defect and the active specific surfaces of TiO2 complex particles. This might promote charge transform and efficiently divide the electrons and holes by shallowly traping electrons. Selection for the photocatalytic degradation of an aqueous 4-chlorophenol, the major affecting factors such as initial concentration, the partial pressure of oxygen, the light intensity and the amount of catalyst were studied in this paper. The results showed that the degradation mechanism was mainly based on the free radicals oxidation. The enhancement of the 4-CP removal rate using transition metal ion-doped TiO2 nanoparticles than using the pure TiO2 nanoparticles as catalyst was around 150%.4-Chlorophenol aqueous solution was treated by individual 22kHz US , individual US/Fenton reagent, dual-frequency ultrasound-Fenton reagent and the major affecting factors such as the sound intensity, pH value of solution, initial concentration, medium temperature and the sorts of saturating gas were studied. Experimental results show that ultrasonic intensity and pH value altered noticeably the reaction rates, with preferable operating conditions as low pH, medium temperature at 20-40 C and using abundance oxygen as the saturating gas et al. The addition of Fenton reagent could increase the 4-CP removal rate, 4-Chlorophenol degradation followed pseudo-first order reaction under individual 22kHz US radiation and Fenton reagent oxidation process within reaction earlier 60min, while it significantly enhanced in the combined single US/Fenton reagent oxidation system. This indicated that there existed synergetic effects in the individual US/Fenton reagent oxidation process and it was found that the promoted factor for 4-Chlorophenoldegradation rate constant is about 2.54. After 60 min of treatment, the enhancement of the 4-CP removal rate was around 150-170%. Therefore, the synergetic effect of individual US/Fenton reagent oxidation system was obvious. In addition, there existed synergetic effects in the dual-frequency ultrasound oxidation process and dual-frequency ultrasound-Fenton reagent oxidation process and it were found that the promoted factor for 4-Chlorophenol degradation rate constant are about 2.44 and 2.17. After 30 min of treatment, the enhancement of the 4-CP removal rate was around 140% and 130% respectively.The treatment of phenol-containing wastewater is studied by using US/H2O2 system in a bench scale. The influence factors including concentration of H2O2, phenol and some metal ions are investigated. The addition of H2O2 was favorable to the removal of phenol, however, the excess of H2O2 does not significantly affect the removal efficiency. The co-existence of metal ions has significant influence upon the reaction rates, Fe2+ increases the reaction rates.Though US/H2O2 process has showed potential application for waster treatment, there were only a few reports on degradation kinetics. In this paper, the synergetic kinetics of phenol wastewater treatment by using US/H2O2 system was studied. It was found that phenol degradation followed pseudo-first order reaction under individual US radiation or H2O2 process, while it significantly enhanced in the combined US/H2O2 system. This indicated that t...
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