@article{8583254,
  abstract     = {{Given the need for innovations in advanced oxidation processes to deal with challenges such as center dot OH scavenging, this paper addresses the removal of pharmaceuticals with a large variety in ozone reactivity (k(O3) = 0.15-3 x 10(5) M-1 s(-1)) by use of the novel ozone -activated peroxymonosulfate (O-3/PMS) process. A clear improvement in removal efficiency (up to 5 times higher) is noticed as a result of the generation of SO4 center dot-radicals, mainly for slow-ozone reacting compounds (k(O3) <= 250 M-1 s(-1)) and in the presence of a center dot OH scavenger. Depending on the target compound, SO4 center dot-are assessed to contribute for 50-90% to the overall removal of the micropollutants, both in single-compound and mixture experiments. Ozone-based PMS activation occurs at neutral to alkaline pH and, in the presence of a center dot OH scavenger, removal efficiencies during O-3/PMS are up to 3 times higher than with the O-3/H2O2 process. In optimizing the O-3/PMS process, a trade-off has to made between the desired removal and the PMS:O-3 ratio. A molar ratio of 1:10 already results in a clear benefit compared to the ozonation process. Further increase of the PMS content up to a 1:1 ratio improved the removal by an additional factor of 1.3-1.5.}},
  author       = {{Deniere, Emma and Van Hulle, Stijn and Van Langenhove, Herman and Demeestere, Kristof}},
  issn         = {{0304-3894}},
  journal      = {{JOURNAL OF HAZARDOUS MATERIALS}},
  keywords     = {{Advanced oxidation process,Ozone,Peroxymonosulfate,Sulfate radicals,Pharmaceuticals,WASTE-WATER TREATMENT,PARA-CHLOROBENZOIC ACID,DRINKING-WATER,MICROPOLLUTANT ELIMINATION,CHEMICAL OXIDATION,HYDROXYL RADICALS,TREATMENT PLANTS,ORGANIC-MATTER,OZONATION,DEGRADATION}},
  language     = {{eng}},
  pages        = {{204--213}},
  title        = {{Advanced oxidation of pharmaceuticals by the ozone-activated peroxymonosulfate process : the role of different oxidative species}},
  url          = {{http://doi.org/10.1016/j.jhazmat.2018.07.071}},
  volume       = {{360}},
  year         = {{2018}},
}

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