Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes

The use of live feed is common in aquaculture processes due to its nutritional advantages, and rotifers comprise one of the most used feeds in finfish aquaculture. However, bacteria present in water used for rotifer culture are a significant source of infection and consequently diseases could cause...

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Autores principales:	Poblete-Chávez,Rodrigo, Cortés-Pizarro,Ernesto, Rojas-Araya,Rodrigo
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
Materias:	rotifers bacteria UV irradiation ozone hydrogen peroxide aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000400013
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spelling	oai:scielo:S0718-560X20160004000132016-10-28Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processesPoblete-Chávez,RodrigoCortés-Pizarro,ErnestoRojas-Araya,Rodrigo rotifers bacteria UV irradiation ozone hydrogen peroxide aquaculture The use of live feed is common in aquaculture processes due to its nutritional advantages, and rotifers comprise one of the most used feeds in finfish aquaculture. However, bacteria present in water used for rotifer culture are a significant source of infection and consequently diseases could cause mortality in fishes. Advanced oxidation process (AOPs) are methods that may be useful to eliminate bacterial infections present in aquaculture wastewater and may allow the reuse of this water. Therefore, the prospect of using different advanced oxidation processes to inactivate Vibrio spp. and total bacteria cultures (TCB) present in this kind of water was evaluated. In particular, UVc/O3/H2O2, UVc/H2O2 and O3/H2O2 and the adsorption process were applied to seawater coming from a fish farming tank. The results obtained were highly promising because it was possible to inactivate 100% of bacteria present in the seawater when UVc/ozone/hydrogen peroxide and UVc/hydrogen peroxide were applied, needing around 20 and 80 min for Vibrio spp. and total culturable bacteria inactivation, respectively. These results are justified due to the strong action between H2O2 in the presence of UVc, which may produce a large amount of hydroxyl radicals. Nevertheless, when ozone/hydrogen peroxide was applied, total inactivation of bacteria did not occur. Also, an interesting relationship between bacteria inactivation and oxide reduction potential of seawater was observed during the process. Rotifers put in water after the treatment did not suffer behavior changes (swimming) and no mortalities were observed.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.44 n.4 20162016-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000400013en10.3856/vol44-issue4-fulltext-13
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	rotifers bacteria UV irradiation ozone hydrogen peroxide aquaculture
spellingShingle	rotifers bacteria UV irradiation ozone hydrogen peroxide aquaculture Poblete-Chávez,Rodrigo Cortés-Pizarro,Ernesto Rojas-Araya,Rodrigo Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes
description	The use of live feed is common in aquaculture processes due to its nutritional advantages, and rotifers comprise one of the most used feeds in finfish aquaculture. However, bacteria present in water used for rotifer culture are a significant source of infection and consequently diseases could cause mortality in fishes. Advanced oxidation process (AOPs) are methods that may be useful to eliminate bacterial infections present in aquaculture wastewater and may allow the reuse of this water. Therefore, the prospect of using different advanced oxidation processes to inactivate Vibrio spp. and total bacteria cultures (TCB) present in this kind of water was evaluated. In particular, UVc/O3/H2O2, UVc/H2O2 and O3/H2O2 and the adsorption process were applied to seawater coming from a fish farming tank. The results obtained were highly promising because it was possible to inactivate 100% of bacteria present in the seawater when UVc/ozone/hydrogen peroxide and UVc/hydrogen peroxide were applied, needing around 20 and 80 min for Vibrio spp. and total culturable bacteria inactivation, respectively. These results are justified due to the strong action between H2O2 in the presence of UVc, which may produce a large amount of hydroxyl radicals. Nevertheless, when ozone/hydrogen peroxide was applied, total inactivation of bacteria did not occur. Also, an interesting relationship between bacteria inactivation and oxide reduction potential of seawater was observed during the process. Rotifers put in water after the treatment did not suffer behavior changes (swimming) and no mortalities were observed.
author	Poblete-Chávez,Rodrigo Cortés-Pizarro,Ernesto Rojas-Araya,Rodrigo
author_facet	Poblete-Chávez,Rodrigo Cortés-Pizarro,Ernesto Rojas-Araya,Rodrigo
author_sort	Poblete-Chávez,Rodrigo
title	Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes
title_short	Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes
title_full	Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes
title_fullStr	Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes
title_full_unstemmed	Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes
title_sort	treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000400013
work_keys_str_mv	AT pobletechavezrodrigo treatmentofseawaterforrotifercultureusesapplyingadsorptionandadvancedoxidationprocesses AT cortespizarroernesto treatmentofseawaterforrotifercultureusesapplyingadsorptionandadvancedoxidationprocesses AT rojasarayarodrigo treatmentofseawaterforrotifercultureusesapplyingadsorptionandadvancedoxidationprocesses
_version_	1714205168966303744

Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes

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