Intensified fish farming. Performance of electrochemical remediation of marine RAS waters

Santos, Germán; Ortiz-Gándara, Isabel; Castillo, Andres; Arruti, Axel; Gómez, Pedro C.; Ibáñez, Raquel; Urtiaga, Ane; Ortíz, Inmaculada

doi:10.1016/j.scitotenv.2022.157368

Cited by 9 publications

(6 citation statements)

References 40 publications

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“…Physical and chemical methods such as filtrations, coagulation, flocculation, and adsorption function to remove contaminants from the aquaculture wastewater, while https://doi.org/10.1017/wat.2024.6 Published online by Cambridge University Press electrochemical oxidation breakdown persistent organic compounds and aeration increased the dissolved oxygen in the water (Santos et al, 2022). These methods can be applied singly or in combination in various aquaculture systems to further increase the efficiency of water quality improvement and enhance aquaculture production (Table 4).…”

Section: Physical-chemical Methodsmentioning

confidence: 99%

“…Different types of biofiltration, biocoagulation, bioflocculation, and biological interactions can be selected to enhance wastewater treatment and performance in aquaculture systems depending on their functionality and costs (Table 4). Santos et al (2022) introduced electrochemical oxidation as an alternative to biofiltration in RAS and reported several advantages including the decrease of toxic compounds and harmful by-products, water disinfection, reduced water use, easy adaptation to different production scales, and an increase in fish health and yields. In addition, aquaculture effluents can be treated by coagulation of phosphorus and organic matter using FeCl3 and AlSO4 (Letelier-Gordo and Fernandes, 2021).…”

Section: Physical-chemical Methodsmentioning

confidence: 99%

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Water Quality Management in Aquaculture

Yusoff,

Umi,

Ramli

et al. 2024

Camb. prisms Water

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The aquaculture industry requires good water quality for its successful operation but produces wastes that can cause environmental deterioration and pose high risks to the sector. Adequate waste treatment and recycling are necessary to make aquaculture a sustainable and profitable industry and contribute to the circular economy. Polluted water sources, excess feeding, overstocking, use of antibiotics/chemicals, and harmful algal blooms (HABs) are major causes of water quality deterioration and low production in aquaculture systems. Discharges of untreated wastes would have serious impacts on the receiving water bodies, and eventually on the aquaculture industry itself.Possible solutions include technological innovations in environmentally friendly production systems, use of efficient processes in water quality management, and improved legislation and governance. Environmentally feasible aquaculture production technologies such as RAS (recycling aquaculture system), IMTA (integrated multitrophic aquaculture), and aquaponics including features of waste recycling are viable

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Section: Physical-chemical Methodsmentioning

confidence: 99%

Section: Physical-chemical Methodsmentioning

confidence: 99%

Water Quality Management in Aquaculture

Yusoff,

Umi,

Ramli

et al. 2024

Camb. prisms Water

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“…(2022) reported a pilot design of electrochemical oxidation of ammonium nitrogen in marine RAS water rearing gilthead sea bream ( Sparus aurata ) and sea bass ( Dicentrarchus labrax ). They measured TAN, fish growth (specific growth rate SGR, FCR, specific feed rate SFR), microbial count (FCU mL −1 ) and water and energy consumption (Santos et al., 2022). The system included incorporated automatic online analysers for monitoring pH, DO, temperature, ORP, TAN and chlorine content.…”

Section: Measurementsmentioning

confidence: 99%

“…The Arduino device was equipped with SD card reader and an Ethernet module, and the measurement data were stored on the SD card(Tziorzioti et al, 2019).The card can be removed and connected to a laptop or a smart phone for data transfer if necessary. The device included a digital temperature sensor, a total dissolved solids meter, an analogue turbidity sensor for measuring suspended particles, an analogue DO meter and an analogue pH Meter Santos et al (2022). reported a pilot design of electrochemical oxidation of ammonium nitrogen in marine RAS water rearing gilthead sea bream (Sparus aurata) and sea bass (Dicentrarchus labrax).…”

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confidence: 99%

Water quality monitoring in recirculating aquaculture systems

Lindholm‐Lehto

2023

Aquaculture Fish & Fisheries

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Good water quality in recirculating aquaculture systems (RAS) is crucial for ensuring the successful growth and survival of reared species. So far, there are no regulations for which parameters should be measured in RAS, and each farmer decides which parameters to follow. Traditionally, water quality parameters have been measured at certain intervals with handheld sensors and laboratory analyses, which can be labour intensive. Currently, a variety of sensors and monitoring equipment is available, even for the real-time monitoring of water quality parameters. Internet of Things-based systems and artificial intelligence can be applied for the monitoring purposes which allows real-time measurements and warnings of critical situations. However, many of the modern systems need competent users and require regular maintenance and calibration. Changes in water quality also induces changes in fish behaviour, such as swimming activity, depth, acceleration and water quality can be assessed also based on these changes. In this review, water quality parameters, variety of sensors and monitoring technologies have been summarised to provide an overview of the current monitoring systems for water quality. Additionally, analytical methods for more advanced analyses have also been briefly summarised. Although there are several advanced options available for monitoring the basic water quality parameters, real-time measurements of more advanced parameters still required require further development. K E Y W O R D S aquaculture, fish behaviour, Internet of Things (IoT), monitoring equipment, recirculating aquaculture systems (RAS), water quality 1 INTRODUCTION Recirculating aquaculture systems (RAS) are land-based intensive aquaculture systems where water is re-used typically via mechanical and biological treatment to reduce the consumption of water and yet maintain adequate water quality (Martins et al., 2010). RAS utilises modern knowledge of biology, environmental sciences, mechanical engineering and information technology (Xiao et al., 2019). Circulating water is reused multiple times, and only a small proportion is replaced with clean water (Chun et al.

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“…The escalation of organic effluents from aquaculture activities [3] has prompted the adoption of environmentally friendly zero water discharge aquaculture methods such as recirculation aquaculture system (RAS), bio floc, and other cultivation technologies [4][5][6]. The bio floc technology relies on heterotrophic processes, wherein excess nutrients in the pond, uneaten feed, and fish excreta are converted into floc of single-cell protein, which can be utilized as a food source by the fish [7].…”

mentioning

confidence: 99%

Study of Bottom Substrate Variation in Zero Water Discharge Aquaculture for Mahseer Fish <i>Tor soro</i> Nursery

Setijaningsih,

Adiyana,

Thesiana

et al. 2023

Pol. J. Environ. Stud.

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Mahseer fish Tor soro was classified as one of Indonesia's endemic species distributed in Sumatra, Kalimantan, and Java islands [1]. Currently, among the 18 assessed Mahseer fish species by the International Union for Conservation of Nature (IUCN), 50% are classified as threatened to critically endangered. However, the T. soro and T. douronensis species, originating from Indonesia are not included in the IUCN Red List [2]. The Mahseer fish population is declining primarily due to the ongoing dependence on wild captures to fulfill consumer demands. Moreover, anthropogenic activities on deforestation, land conversion, and pollution of river or lake can disrupt crucial habitat conditions and environmental quality for Mahseer fish [1]. Addressing this issue necessitates the implementation of cultivation activities

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Intensified fish farming. Performance of electrochemical remediation of marine RAS waters

Cited by 9 publications

References 40 publications

Water Quality Management in Aquaculture

Water Quality Management in Aquaculture

Water quality monitoring in recirculating aquaculture systems

Study of Bottom Substrate Variation in Zero Water Discharge Aquaculture for Mahseer Fish <i>Tor soro</i> Nursery

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