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Oxidation of Emerging Contaminants during Pilot-Scale Ozonation of Secondary Treated Municipal Effluent |
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| Authors: | Saileshkumar Singh Shahram Tabe Paul Yang |
| Affiliation: | 1. Civil and Environmental Engineering Department, University of Windsor, Windsor, Ontario N9B 3P4, Canada;2. Ontario Ministry of the Environment, Ontario M7A 1N3, Canada;3. Ontario Ministry of the Environment, Ontario M7A 1N3, Canada |
| Abstract: | The transformation of 41 target emerging contaminants in secondary treated municipal wastewater effluent in Canada was examined at pilot-scale, at transferred ozone doses of 2.8 mg/L (0.46 O3/mg DOC) and 4.4 mg/L (0.72 mg O3/mg DOC). In general, transformation efficiencies of CECs either increased or were retained at the higher ozone dose. The higher ozone dose of 0.72 mg O3/mg DOC (Zspec = 0.6 mg O3/mg DOC) was sufficient to transform 21 of the 31 detected CECs by over 80% as well as achieving the disinfection target of < 200 MPN E. coli per 100 mL. |
| Keywords: | Ozone Advanced Oxidation Contaminants of Emerging Concern Municipal Wastewater Pharmaceutically Active Compounds Pharmaceuticals Secondary Treated Effluent Wastewater Treatment |