Impact of ozonation on water quality in marine recirculation systems

Tango, Martin; Gagnon, Graham A.

doi:10.1016/s0144-8609(03)00061-x

Cited by 96 publications

(56 citation statements)

References 24 publications

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“…ORP measures the potential of water to oxidize and reduce, and is thus an indication of process to disinfect an aquaculture system. ORP can be used to control ozone addition and thus ensure the desired treatment objective (Tango & Gagnon, 2003).…”

Section: Methodsmentioning

confidence: 99%

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

Poblete-Chávez

Cortés-Pizarro

Rojas-Araya

2016

lajar

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ABSTRACT. 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. Keywords: rotifers, bacteria, UV irradiation, ozone, hydrogen peroxide, aquaculture.Tratamiento de agua de mar para el cultivo de rotíferos mediante procesos de adsorción y oxidación avanzados RESUMEN. El uso de organismos vivos como alimento es común en la acuicultura, debido a sus ventajas nutricionales. Los rotíferos constituyen uno de los alimentos principales en el cultivo de peces. Sin embargo, las bacterias presentes en aguas utilizadas en el cultivo de rotíferos son una fuente importante de infección y pueden causar enfermedades y mortalidad en peces. Los procesos de oxidación avanzados son métodos útiles para eliminar bacterias presentes en aguas residuales de la acuicultura, permitiendo su reutilización. Se evaluó la inactivación de Vibrio spp. y bacterias cultivables totales presentes en aguas residuales de la acuicultura a través procesos de oxidación avanzados. Particularmente, se estudió la aplicación de UVc/O3/H2O2, UVc/H2O2 y O3/H2O2 junto a procesos de adsorción aplicados a agua proveniente de un estanque de cultivo de peces. Los resultados obtenidos son muy prometedores debido a que fue posible inactivar el 100% de bacterias presentes cuando se utilizó UVc/O3/H2O2 y UVc/H2O2, requiriendo 20 y 80 min para la inactivación de Vibrio spp. y bacte- __________________ Corresponding editor: Ricardo Prego 780Latin American Journal of Aquatic Research rias cultivables totales, respectivamente. Estos resultados se expl...

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Section: Methodsmentioning

confidence: 99%

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

Poblete-Chávez

Cortés-Pizarro

Rojas-Araya

2016

lajar

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“…Our control experiment, without the spiked I The relative percent differences of all measurement data were below 18% (n = 2). (Tango and Gagnon, 2003;Hu et al, 2010). Fig.…”

Section: Formation Of I-thms and Hacamsmentioning

confidence: 98%

“…O 3 , which is primarily used to improve the physicochemical aspects of water quality rather than to provide disinfection (Tango and Gagnon, 2003), has multiple functions, such as decomposing DOM and controlling algae, color, odor, and taste (Gonçalves and Gagnon, 2011). Another persistent disinfectant (e.g., ClO 2 , Cl 2 , or NH 2 Cl) is necessary to maintain continuous disinfection capability because O 3 cannot provide a persistent residue in water distribution systems.…”

Section: Introductionmentioning

confidence: 99%

Formation and speciation of disinfection byproducts during chlor(am)ination of aquarium seawater

Zhang

Dong

Adams

et al. 2015

Journal of Environmental Sciences

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“…So far, several methods have been used to measure the dissolved ozone in the solution: UV spectrophotometric method, DPD (N,N-diethyl-p-phenylenediamine) colourimetric method, indigo colourimetric method, iodometric titration method, oxidation/reduction potential (ORP), and dissolved ozone sensor [140][141][142][143][144][145][146][147][148][149][150][151].…”

Section: Dissolved Omentioning

confidence: 99%

“…This method is also primarily used to measure chlorine residuals and has only been used to measure dissolved ozone in solutions in early research. In the ozonated solution, ozone can react with potassium iodide (KI) at pH ≤ 8 to form free iodine (Reaction 13 5) Oxidation/reduction potential (ORP) [151]. Redox potential is an indirect method for measuring the dissolved ozone.…”

Section: Dissolved Omentioning

confidence: 99%

Application of advanced oxidation processes for treatment of air from livestock and industrial facilities

Yao¹

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Impact of ozonation on water quality in marine recirculation systems

Cited by 96 publications

References 24 publications

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

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

Formation and speciation of disinfection byproducts during chlor(am)ination of aquarium seawater

Application of advanced oxidation processes for treatment of air from livestock and industrial facilities

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