DOI: 10.1016/j.watres.2018.01.032
Scopus记录号: 2-s2.0-85041411909
论文题名: Ozonation control and effects of ozone on water quality in recirculating aquaculture systems
作者: Spiliotopoulou A. ; Rojas-Tirado P. ; Chhetri R.K. ; Kaarsholm K.M.S. ; Martin R. ; Pedersen P.B. ; Pedersen L.-F. ; Andersen H.R.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 133 起始页码: 289
结束页码: 298
语种: 英语
英文关键词: Fluorescence
; Laboratory study
; Ozone
; Pilot-scale
; RAS
; Water quality
Scopus关键词: Aquaculture
; Biogeochemistry
; Biological materials
; Chemical oxygen demand
; Fluorescence
; Kinetics
; Organic compounds
; Ozone
; Ozonization
; Quality control
; Radium
; Water quality
; Chemotherapeutants
; Concentration change
; First order kinetics
; Laboratory studies
; Monitoring tools
; Pilot scale
; Recirculating aquaculture system
; Water quality parameters
; Ozone water treatment
; fresh water
; organic compound
; organic matter
; ozone
; oxidizing agent
; ozone
; chemical oxygen demand
; concentration (composition)
; experimental culture
; fluorescence
; freshwater
; laboratory method
; mortality
; organic matter
; ozonation
; ozone
; reaction kinetics
; recirculating system
; transmittance
; water quality
; water treatment
; acute toxicity
; aquaculture
; Article
; chemical oxygen demand
; controlled study
; degradation
; fish
; fluorescence
; kinetics
; laboratory test
; nonhuman
; ozonation
; pollution monitoring
; priority journal
; water pollution
; water quality
; water treatment
; chemistry
; procedures
; water management
; water pollutant
; Aquaculture
; Fresh Water
; Kinetics
; Oxidants
; Ozone
; Water Pollutants
; Water Purification
; Water Quality
英文摘要: To address the undesired effect of chemotherapeutants in aquaculture, ozone has been suggested as an alternative to improve water quality. To ensure safe and robust treatment, it is vital to define the ozone demand and ozone kinetics of the specific water matrix to avoid ozone overdose. Different ozone dosages were applied to water in freshwater recirculating aquaculture systems (RAS). Experiments were performed to investigate ozone kinetics and demand, and to evaluate the effects on the water quality, particularly in relation to fluorescent organic matter. This study aimed at predicting a suitable ozone dosage for water treatment based on daily ozone demand via laboratory studies. These ozone dosages will be eventually applied and maintained at these levels in pilot-scale RAS to verify predictions. Selected water quality parameters were measured, including natural fluorescence and organic compound concentration changes during ozonation. Ozone reactions were described by first order kinetics. Organic matter, assessed as chemical oxygen demand and fluorescence, decreased by 25% (low O3), 30% (middle O3) and 53% (high O3), while water transmittance improved by 15% over an 8-day period. No fish mortality was observed. Overall, this study confirms that ozone can improve RAS water quality, provides a better understanding of the ozone decay mechanisms that can be used to define further safe ozone treatment margins, and that fluorescence could be used as a monitoring tool to control ozone. This study might be used as a tool to design ozone systems for full-scale RAS by analysing water sample from the specific RAS in the laboratory. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112946
Appears in Collections: 气候减缓与适应
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作者单位: Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet 115, Kongens Lyngby, 2800, Denmark; OxyGuard International A/S, Farum Gydevej 64, Farum, 3520, Denmark; National Institute of Aquatic Resources, Technical University of Denmark, NordsøenForskerpark, Postboks 101, Hirtshals, 9850, Denmark; Water ApS, Farum Gydevej 64, Farum, 3520, Denmark
Recommended Citation:
Spiliotopoulou A.,Rojas-Tirado P.,Chhetri R.K.,et al. Ozonation control and effects of ozone on water quality in recirculating aquaculture systems[J]. Water Research,2018-01-01,133