Seawater ozonation: effects of seawater parameters on oxidant loading rates,residual toxicity,and total residual oxidants/by-products reduction during storage time |
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| Authors: | Alex Augusto Gonçalves Graham A. Gagnon |
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| Affiliation: | 1. Laboratory of Seafood Technology and Quality Control (LAPESC), Agricultural Sciences Center (CCA), Animal Sciences Department (DCA), Federal University of Semi-Arid (UFERSA), Mossoró, 59625-900, Brazilalaugo@gmail.com!["ORCID]("/templates/jsp/images/orcid.png" "\"ORCID") http://orcid.org/0000-0002-0604-6507;2. Centre for Water Resources Studies, Department of Civil and Resources Engineering, Dalhousie University, Halifax, NS B3J 1Z1, Canadahttp://orcid.org/0000-0001-5925-2294 |
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| Abstract: | The efficacy of ozonation in different seawater conditions provides an improvement in the water quality and promotes the increment of dissolved oxygen. By-products (bromine, bromate, and bromoform) formation is directly proportional to the ozonation time. Ozone-produced oxidants remain toxic in both closed and dark containers for at least 4 days; however, during long storage period (35 days) in dark and cold conditions, these residual oxidants decrease slowly. These results have practical implications for both the installation of ozone systems on ships ballast water or for recirculating aquaculture system for inactivating undesirable organisms present in seawater. |
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| Keywords: | Ozone Bromate Bromine Bromoform Disinfection Safety Seawater Parameters |
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