Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture
Peracetic acid (PAA) is a widely applied disinfectant in aquaculture. Knowledge on PAA decay in seawater (SW) is crucial for its successful implementation in SW aquaculture systems. We investigated the decay dynamics of PAA in SW under controlled conditions to assess the potential effect of temperat...
Published in: | Aquaculture Environment Interactions |
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Language: | English |
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2020
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ftdtupubl:oai:pure.atira.dk:publications/198d01bf-bb84-4203-829c-cf05f992e31a 2024-09-15T17:56:29+00:00 Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture Pedersen, Lars-Flemming Lazado, Carlo C. 2020 application/pdf https://orbit.dtu.dk/en/publications/198d01bf-bb84-4203-829c-cf05f992e31a https://doi.org/10.3354/aei00354 https://backend.orbit.dtu.dk/ws/files/210403841/q012p153.pdf eng eng https://orbit.dtu.dk/en/publications/198d01bf-bb84-4203-829c-cf05f992e31a info:eu-repo/semantics/openAccess Pedersen , L-F & Lazado , C C 2020 , ' Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture ' , Aquaculture Environment Interactions , vol. 12 , pp. 153-165 . https://doi.org/10.3354/aei00354 Acetate Amoebic gill disease Decay kinetics Half-life Hydrogen peroxide Peracetic acid article 2020 ftdtupubl https://doi.org/10.3354/aei00354 2024-08-13T00:03:06Z Peracetic acid (PAA) is a widely applied disinfectant in aquaculture. Knowledge on PAA decay in seawater (SW) is crucial for its successful implementation in SW aquaculture systems. We investigated the decay dynamics of PAA in SW under controlled conditions to assess the potential effect of temperature, salinity and light. We also applied PAA to 22 tanks with post-smolt Atlantic salmon Salmo salar in full-strength SW (33‰) over a realistic range of therapeutic concentrations (0.15-4.8 mg l -1 ) to simulate relevant treatment scenarios. The study showed that PAA degrades rapidly in SW. The degradation follows exponential first-order decay with half-lives on the order of minutes to hours. Salinity and temperature significantly affected the decay of PAA, showing a 4-fold faster decay rate in full-strength SW compared to freshwater. The decay of PAA was not significantly related to the nominal concentration of PAA in the concentration range tested. The other 2 active ingredients in PAA products, hydrogen peroxide (H 2 O 2 ) and acetic acid, were found to degrade at a much slower rate. H 2 O 2 half-lives in SW were found to range from 15 to 70 h, and minimal acetate was found to be degraded when added to SW. Finally, we compiled published data on PAA decay in relevant water matrices and discussed the potential environmental impacts, mitigation options and future research. Article in Journal/Newspaper Atlantic salmon Salmo salar Technical University of Denmark: DTU Orbit Aquaculture Environment Interactions 12 153 165 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Acetate Amoebic gill disease Decay kinetics Half-life Hydrogen peroxide Peracetic acid |
spellingShingle |
Acetate Amoebic gill disease Decay kinetics Half-life Hydrogen peroxide Peracetic acid Pedersen, Lars-Flemming Lazado, Carlo C. Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture |
topic_facet |
Acetate Amoebic gill disease Decay kinetics Half-life Hydrogen peroxide Peracetic acid |
description |
Peracetic acid (PAA) is a widely applied disinfectant in aquaculture. Knowledge on PAA decay in seawater (SW) is crucial for its successful implementation in SW aquaculture systems. We investigated the decay dynamics of PAA in SW under controlled conditions to assess the potential effect of temperature, salinity and light. We also applied PAA to 22 tanks with post-smolt Atlantic salmon Salmo salar in full-strength SW (33‰) over a realistic range of therapeutic concentrations (0.15-4.8 mg l -1 ) to simulate relevant treatment scenarios. The study showed that PAA degrades rapidly in SW. The degradation follows exponential first-order decay with half-lives on the order of minutes to hours. Salinity and temperature significantly affected the decay of PAA, showing a 4-fold faster decay rate in full-strength SW compared to freshwater. The decay of PAA was not significantly related to the nominal concentration of PAA in the concentration range tested. The other 2 active ingredients in PAA products, hydrogen peroxide (H 2 O 2 ) and acetic acid, were found to degrade at a much slower rate. H 2 O 2 half-lives in SW were found to range from 15 to 70 h, and minimal acetate was found to be degraded when added to SW. Finally, we compiled published data on PAA decay in relevant water matrices and discussed the potential environmental impacts, mitigation options and future research. |
format |
Article in Journal/Newspaper |
author |
Pedersen, Lars-Flemming Lazado, Carlo C. |
author_facet |
Pedersen, Lars-Flemming Lazado, Carlo C. |
author_sort |
Pedersen, Lars-Flemming |
title |
Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture |
title_short |
Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture |
title_full |
Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture |
title_fullStr |
Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture |
title_full_unstemmed |
Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture |
title_sort |
decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture |
publishDate |
2020 |
url |
https://orbit.dtu.dk/en/publications/198d01bf-bb84-4203-829c-cf05f992e31a https://doi.org/10.3354/aei00354 https://backend.orbit.dtu.dk/ws/files/210403841/q012p153.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Pedersen , L-F & Lazado , C C 2020 , ' Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture ' , Aquaculture Environment Interactions , vol. 12 , pp. 153-165 . https://doi.org/10.3354/aei00354 |
op_relation |
https://orbit.dtu.dk/en/publications/198d01bf-bb84-4203-829c-cf05f992e31a |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/aei00354 |
container_title |
Aquaculture Environment Interactions |
container_volume |
12 |
container_start_page |
153 |
op_container_end_page |
165 |
_version_ |
1810432694570450944 |