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Ozone Application in Recirculating Aquaculture System: An Overview.

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Title: Ozone Application in Recirculating Aquaculture System: An Overview.
Authors: Gonçalves, AlexAugusto1 (AUTHOR) alaugo@gmail.com, Gagnon, GrahamA.2 (AUTHOR)
Source: Ozone: Science & Engineering. Sep/Oct2011, Vol. 33 Issue 5, p345-367. 23p. 1 Diagram, 4 Graphs.
Subjects: Recirculating electron accelerators, Ozonization, Effect of climate on aquaculture, Pathogenic bacteria, Oxygenators, Fishes, Animal health
Abstract: In recirculating aquaculture systems (RAS), particulates (including feces, uneaten feed, bacteria, and algae) can cause several problems, in that they may harbor pathogens, can physically irritate the fish, and upon decomposition, release ammonia and consume oxygen. Mechanical filters, foam fractionators, and other engineered devices are used to remove particles quickly from aquaculture systems, in order to improve fish health and decrease the load on biofilters and oxygenators. Ozone is used in RAS as a disinfectant, to remove organic carbon, and also to remove turbidity, algae, color, odor and taste. Ozone can effectively inactivate a range of bacterial, viral, fungal and protozoan fish pathogens. But the effectiveness of ozone treatment depends on ozone concentration, length of ozone exposure (contact time), pathogen loads and levels of organic matter. In spite of ozone is a very effective oxidizing agent, higher ozone concentrations are a risk to cultured fish stocks causing gross tissue damage and stock mortalities, and also are a risk to bacterial films on the biofilter. [ABSTRACT FROM PUBLISHER]
Copyright of Ozone: Science & Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Ozone Application in Recirculating Aquaculture System: An Overview.
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  Data: <searchLink fieldCode="AR" term="%22Gonçalves%2C+AlexAugusto%22">Gonçalves, AlexAugusto</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> alaugo@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Gagnon%2C+GrahamA%2E%22">Gagnon, GrahamA.</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Ozone%3A+Science+%26+Engineering%22">Ozone: Science & Engineering</searchLink>. Sep/Oct2011, Vol. 33 Issue 5, p345-367. 23p. 1 Diagram, 4 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Recirculating+electron+accelerators%22">Recirculating electron accelerators</searchLink><br /><searchLink fieldCode="DE" term="%22Ozonization%22">Ozonization</searchLink><br /><searchLink fieldCode="DE" term="%22Effect+of+climate+on+aquaculture%22">Effect of climate on aquaculture</searchLink><br /><searchLink fieldCode="DE" term="%22Pathogenic+bacteria%22">Pathogenic bacteria</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygenators%22">Oxygenators</searchLink><br /><searchLink fieldCode="DE" term="%22Fishes%22">Fishes</searchLink><br /><searchLink fieldCode="DE" term="%22Animal+health%22">Animal health</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: In recirculating aquaculture systems (RAS), particulates (including feces, uneaten feed, bacteria, and algae) can cause several problems, in that they may harbor pathogens, can physically irritate the fish, and upon decomposition, release ammonia and consume oxygen. Mechanical filters, foam fractionators, and other engineered devices are used to remove particles quickly from aquaculture systems, in order to improve fish health and decrease the load on biofilters and oxygenators. Ozone is used in RAS as a disinfectant, to remove organic carbon, and also to remove turbidity, algae, color, odor and taste. Ozone can effectively inactivate a range of bacterial, viral, fungal and protozoan fish pathogens. But the effectiveness of ozone treatment depends on ozone concentration, length of ozone exposure (contact time), pathogen loads and levels of organic matter. In spite of ozone is a very effective oxidizing agent, higher ozone concentrations are a risk to cultured fish stocks causing gross tissue damage and stock mortalities, and also are a risk to bacterial films on the biofilter. [ABSTRACT FROM PUBLISHER]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ozone: Science & Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1080/01919512.2011.604595
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      – Code: eng
        Text: English
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        PageCount: 23
        StartPage: 345
    Subjects:
      – SubjectFull: Recirculating electron accelerators
        Type: general
      – SubjectFull: Ozonization
        Type: general
      – SubjectFull: Effect of climate on aquaculture
        Type: general
      – SubjectFull: Pathogenic bacteria
        Type: general
      – SubjectFull: Oxygenators
        Type: general
      – SubjectFull: Fishes
        Type: general
      – SubjectFull: Animal health
        Type: general
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      – TitleFull: Ozone Application in Recirculating Aquaculture System: An Overview.
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            NameFull: Gonçalves, AlexAugusto
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            NameFull: Gagnon, GrahamA.
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            – D: 01
              M: 09
              Text: Sep/Oct2011
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              Y: 2011
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            – TitleFull: Ozone: Science & Engineering
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