Effects of Protein Skimming on Water Quality, Bacterial Abundance and Abalone Growth in Land Based Recirculating Aquaculture Systems

Rahman, Mohammed Ataur; Kadowaki, Shusaku; Linn, Saw Mya; Yamada, Yuma

doi:10.3923/jfas.2012.150.161

Cited by 12 publications

(7 citation statements)

References 20 publications

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“…Rahman et al . () indicated that protein skimming resulted in obviously better water quality in RAS, heterotrophic bacterial abundance and abalone growth and that recirculating abalone culture systems with a protein skimmer housed in an air‐conditioned, insulated recyclable frozen container may provide a viable alternative to current land‐based, flow‐through systems.…”

Section: Physical Filtration Equipments Of Rassmentioning

confidence: 99%

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

Xiao

Wei

et al. 2018

Reviews in Aquaculture

147

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Recirculating aquaculture systems (RASs) are intensive aquaculture facilities models that depend on diverse water treatment equipment to maintain good water quality and produce safe and healthy high-quality aquatic products. This article combines the main farming-mode of water purification recirculating processes with recent cultivation-mode scientific research and the current development of the recirculating aquaculture industry. Harmful substances are present in aquaculture wastewater due to large quantities of residual particulate matter such as residual feed, faeces and small suspended solid particles, as well as ammonia, nitrite, bacteria and carbon dioxide (CO 2 ), in the water. These harmful substances seriously affect the quality of aquatic products, so water treatment equipment is needed to remove these substances, add oxygen (O 2 ) to the water and adjust the temperature of the water to ensure a high-quality environment for fish survival. This article reviews the equipment for physical filtration (e.g. solid-liquid separation equipment, microscreen drum filter and foam fractionator) that could remove suspended solids during the water treatment of RASs and the equipment for biological filtration (e.g. fluidized sand biofilter (FSB), moving-bed biofilm reactor (MBBR) and rotating biological contactor (RBC)) that could remove ammonia nitrogen, nitrite and other hazardous substances from wastewater, as well as equipment for water disinfection and sterilization, O 2 addition, CO 2 removal and temperature control. Comprehensive analysis and discussion of water treatment efficiency are provided for reference to create efficient high-end recirculation aquaculture models and increase the precision and intelligence degree of recirculating water treatment technologies in the future.

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Section: Physical Filtration Equipments Of Rassmentioning

confidence: 99%

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

Xiao

Wei

et al. 2018

Reviews in Aquaculture

147

View full text Add to dashboard Cite

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“…The density of animals is a critical factor that strongly affects the aquatic ecosystem (Soundarapandian & Kannan 2008;Rahman et al 2012;Khatune-Jannat et al 2012;Amira et al 2015). Excess densities of common carp have many negative effects on aquatic ecosystems (Rahman et al 2006;Kloskowski 2011a;Rahman 2015).…”

Section: Introductionmentioning

confidence: 99%

Role of common carp (Cyprinus carpio) in aquaculture production systems

Rahman

2015

Frontiers in Life Science

121

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Common carp (Cyprinus carpio) is considered to be a very important aquaculture species in many Asian and some European countries. It affects the aerobic decomposition of organic matter and nutrient availability in the water column via bioturbation of benthic sediment during feeding on benthic organisms. If the density of common carp is not excessive, an increase in nutrient availability may enhance photosynthesis and plankton production, whereas if it is excessive, it causes dramatic ecological disruption at both the community and ecosystem levels by changing the abiotic properties of the water. Therefore, the density of common carp is a very important factor that has a great effect on the aquatic ecosystem. The critical density of common carp largely depends on its habitat. In polyculture ponds, water quality, natural food resources and fish growth are strongly affected when the density of common carp approaches more than about 1000 kg ha −1. The critical density can be doubled if artificial feed is supplied to the carp. When its preferred food is not sufficient, the common carp switches to less preferred food and changes its behaviour and feeding niche. These factors make common carp a potential candidate not only for monoculture but also for polyculture ponds. This article reviews the role of common carp on the aquatic ecosystem, and the production and behaviour of fish in aquaculture production systems.

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“…This result agrees with the findings of Brambilla et al (2008), showing that removal of heterotrophic bacteria (32 to 88%) was achieved by FF in seawater. Similarly, Rahman et al (2012) who investigated the effect of FF on bacterial abundance and abalone growth, found a lower mean bacterial abundance in water treated with FF than in untreated water, thereby confirming the efficiency of FF for the removal of bacteria from seawater.…”

Section: Foam Fractionation Removes Microparticles and Improves Water...mentioning

confidence: 75%

Removal of microparticles and bacterial inactivation in freshwater RAS by use of foam fractionation, H ₂ O ₂ and NaCl

Jafari

Gregersen

Vadstein

et al. 2022

Aquaculture Research

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Foam fractionation (FF) is an effective water treatment technology used to remove fine particles in seawater recirculating aquaculture systems (RAS). However, there is only limited available information on the operation and efficiency of FF in freshwater. This study investigated the treatment efficiency of FF by measuring changes in bacterial activity and microparticle densities in freshwater from RAS. Thirty‐six separate batch tests were performed with FF separately and in combination with addition of hydrogen peroxide (H2O2) and salt (NaCl). Both chemicals are commonly used for water treatment in freshwater aquaculture. The experiment was a 2 × 2 × 3 factorial design with 3 factors: FF (present or absent), H2O2 (0 or 10 mg L⎻1) and NaCl (0, 3, or 10 ppt). FF reduced the concentration of microparticles and turbidity in freshwater by 58.7 ± 5.4% and 27.5 ± 3.8% respectively. H2O2 had a significant antimicrobial effect, and the combination of H2O2 and FF resulted in an 80% reduction in bacterial activity in freshwater. Addition of NaCl improved the efficiency of FF by further reducing particle concentration and turbidity two‐fold at 10 ppt compared to 0 ppt. This study provides new knowledge on the potential use of FF to improve the water quality in freshwater RAS, and this was further enhanced by the addition of H2O2 or NaCl.

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Effects of Protein Skimming on Water Quality, Bacterial Abundance and Abalone Growth in Land Based Recirculating Aquaculture Systems

Cited by 12 publications

References 20 publications

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

Role of common carp (Cyprinus carpio) in aquaculture production systems

Removal of microparticles and bacterial inactivation in freshwater RAS by use of foam fractionation, H ₂ O ₂ and NaCl

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Effects of Protein Skimming on Water Quality, Bacterial Abundance and Abalone Growth in Land Based Recirculating Aquaculture Systems

Cited by 12 publications

References 20 publications

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

Role of common carp (Cyprinus carpio) in aquaculture production systems

Removal of microparticles and bacterial inactivation in freshwater RAS by use of foam fractionation, H 2 O 2 and NaCl

Contact Info

Product

Resources

About

Removal of microparticles and bacterial inactivation in freshwater RAS by use of foam fractionation, H ₂ O ₂ and NaCl