Date of Award
Civil and Environmental Engineering
Seth, Rajesh (Civil and Environmental Engineering)
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Municipal wastewater effluent (MWWE) is a major source of contaminants of emerging concern (CECs) in the aquatic environment. Studies have shown ozonation of MWWE to be effective in disinfection as well as transformation of the CECs. However, the characteristics of the MWWE matrix influence the oxidation efficacy with ozone. In the current study, a pilot unit was set up to examine efficiency of ozonation of MWWE in disinfection and transformation of target CECs. A transferred ozone dose (TOD) of 0.72 mg O3/mg DOC was sufficient to consistently achieve the Ontario MOE disinfection target of < 200 MPN E. coli/100 mL. A similar TOD transformed the majority of the detected CECs by over 80%. Out of the 31 CECs for which transformation efficiencies could be calculated, transformations of 21 CECs were > 80%. Transformations of 4 CECs of antibiotics group were less than 30%.
Singh, Saileshkumar, "Ozone Treatment of Municipal Wastewater Effluent for Oxidation of Emerging Contaminants and Disinfection" (2012). Electronic Theses and Dissertations. 95.