Heterotrophic denitrification of aquaculture effluent using fluidized sand biofilters

Tsukuda, Scott; Christianson, Laura E.; Kolb, Alex; Saito, Keiko; Summerfelt, Steven T.

doi:10.1016/j.aquaeng.2014.10.010

Cited by 50 publications

(20 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Los mayores valores de alcalinidad registrados en los reactores R1 y R5, en relación a los medidos en las demás unidades de tratamiento, pudieron deberse a incipientes procesos de desnitrificación, pues que de acuerdo con Tsukuda et al (6), la desnitrificación es un proceso que produce alcalinidad.…”

Section: Periodic Weight Increaseunclassified

“…La escasez creciente de los recursos hídricos, la gestión de la contaminación del medio ambiente y la seguridad alimentaria, son algunos de los motivos por los cuales la acuicultura de recirculación se está volviendo más y más popular (5). Los sistemas de recirculación para la acuicultura (SRA) permiten la producción intensiva de pescado de alta calidad, en estrecha proximidad a los grandes mercados, mientras reducen la huella hídrica y las preocupaciones ambientales; idealmente los SRA se ubican cerca a áreas urbanas con mercados que presentan alta demanda por proteína producida de manera sostenible (2,6).…”

Section: Introductionunclassified

“…Recirculation aquaculture systems (RAS) allow intensive production of high quality fish in close proximity to large markets while reducing the water footprint and environmental concerns. Ideally, RAS are located close to urban areas with markets that have a high demand for sustainably produced protein (2,6).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance of different biofilters in a recirculating system for rainbow trout farming

et al. 2016

Rev MVZ Córdoba

View full text Add to dashboard Cite

Objective. To evaluate the performance of different biofilters in a recirculating aquaculture system (RAS) for trout farming. Materials and methods. It was used a 1m3 plastic tank for fries farming; fabric bags to solids retention; a submersible pump; a constant water level and flow distribution box; six up flow biofilters in 3” PVC tube; sand of D10=0.45mm as carrier. The reactors were operated at local temperature and with hydraulic retention time (HRT) of 11 min, the biofilters were inoculated in the next way: R1-Control: RAS water; R2-Fish culture farm sludges; R3- Water from aerated lagoon of Antanas landfill (AL); R4-Aquarium sediments; R5- Aerated lagoon of AL sludges; R6-Sludges from sulfidogenic reactor of AL. The weight gain (WG) and the food conversion (FC) were evaluated, some physic-chemical parameters were monitored and the nitrogen and suspended solids removal efficiency were evaluated. Results. The WG of the cultured animals was 1.58 g/d and the FC was 1.41. There were no differences for ammonium and nitrite removal between the reactors; the average removal efficiencies were: ammonium 4.78%, nitrite 27.2%, nitrate 32.3%, suspended solids 37.5%; R4 and R5 reactors presented the best performance on nitrate removal, with average efficiencies of 47.4% and 42.8%. R3 presented the best SS removal with an average of 58.2%. Conclusions. The RAS water treatment system guaranteed appropriated liquid quality conditions for trout farming; the most efficient reactor for removal of the different forms of nitrogen was the inoculated with the aerated lagoon of AL sludges.RESUMEN Objetivo. Evaluar el desempeño de diferentes biofiltros en un sistema de recirculación (SRA) para cultivo de trucha arcoiris. Materiales y métodos. Se utilizó: un tanque de 1m3 para cultivo de alevines, bolsas de lienzo para retención de sólidos, bomba sumergible, caja de nivel constante y distribución de flujo, seis biofiltros en tubo de PVC de 3”, arena con D10=0.45mm como medio soporte. Los biofiltros se operaron a temperatura ambiente y con tiempo de retención hidráulica (TRH) de 11 min, se inocularon así: R1-Control: Aguas del SRA; R2-Lodos estación piscícola; R3-Agua Laguna aireada relleno sanitario Antanas (RSA); R4-Sedimentos acuarios; R5-Lodos laguna aireada RSA; R6-Lodos reactor sulfidogénico RSA. Se evaluó la ganancia de peso (GP) y la conversión alimenticia (CA), se monitorearon parámetros físico-químicos y se evaluó la eficiencia de remoción de nitrógeno y sólidos suspendidos. Resultados. La GP de los animales fue de 1.58 g/d y la CA de 1.41. No hubo diferencias para remoción de amonio ni nitritos entre reactores; las eficiencias medias de remoción fueron: amonio 4.78%, nitrito 27.2%, nitrato 32.3%, sólidos suspendidos 37.5%. Los reactores R4 y R5 presentaron mejor remoción de nitratos, con eficiencias medias de 47.4% y 42.8%. El R3 reportó la mejor remoción de SS con promedio del 58.2%. Conclusiones. El sistema de tratamiento del agua en el SRA garantizó condiciones de calidad del líquido, apropiadas para el cultivo de la trucha; el reactor más eficiente para la remoción de las formas de nitrógeno evaluadas fue el inoculado con lodos de la laguna aireada del RSA.

show abstract

Section: Periodic Weight Increaseunclassified

Section: Introductionunclassified

See 1 more Smart Citation

Performance of different biofilters in a recirculating system for rainbow trout farming

et al. 2016

Rev MVZ Córdoba

View full text Add to dashboard Cite

show abstract

“…Floating bead bioclarifiers (bead filters) provide nitrification in addition to solid removal and, if operated in anaerobic conditions, denitrification [49]. A fluidized sand filter can also be used for heterotrophic denitrification [50]. By allowing space between the media and the water spray, in downflow microbead filters, gas stripping can be forced [33].…”

Section: Controlling N Compoundsmentioning

confidence: 99%

Taxonomy of Means and Ends in Aquaculture Production—Part 4: The Mapping of Technical Solutions onto Multiple Treatment Functions

Vilbergsson¹,

Oddsson²,

Unnþórsson³

2016

Water

View full text Add to dashboard Cite

Designing aquaculture production units will require decisions on which treatment to include, e.g., the intensification of the system, and then a decision on a technical solution for each treatment function selected to implement. To complicate matters, each technical solution is not unique to each treatment function, but has a multiple effect on the system. This interaction of a technical solution to multiple treatment functions will play a part in the decision making process. Previous work by the authors has made a taxonomy of all technical solutions for the treatment function, and in this article, how technical solutions affect treatment functions is mapped. The article views the aquaculture production system as a transformation process with three sets of functions, input, treatment and output. Based on a comprehensive literature review where all technical solutions were found and categorized into a taxonomy, their effect on treatment function was mapped using a quality function deployment (QFD). The result is a matrix that gives an evaluation on the interaction. This work is a step towards an aquaculture engineering design methodology.

show abstract

“…The design of the flow distribution mechanism at the base of the unit is critical, not only to maintain well-distributed water flow, but also to prevent clogging, fouling and loss of sand [32]. A fluidized sand filter can also be used for heterotrophic denitrification [33].…”

Section: Submerged Filtersmentioning

confidence: 99%

Taxonomy of Means and Ends in Aquaculture Production—Part 3: The Technical Solutions of Controlling N Compounds, Organic Matter, P Compounds, Metals, Temperature and Preventing Disease

Vilbergsson

Oddsson

Unnþórsson

2016

Water

View full text Add to dashboard Cite

This is the third part of the taxonomy of technical solutions and treatment functions in aquaculture. This article builds on the premiss that the aquaculture production system can be viewed as a transformation process with three sets of functions, input, treatment and output. This work creates an overview of all of the technical solutions of treatment functions for the purpose of both design and further research. This is done with a comprehensive literature review where all technical solutions are identified and then categorized into a taxonomy. The result is a visual taxonomy of the treatment functions controlling N compounds, organic matter, P compounds, metals, temperature and preventing disease. A total taxonomy is finally presented where the results from Part 2 and Part 3 (this part) have been combined.

show abstract

Heterotrophic denitrification of aquaculture effluent using fluidized sand biofilters

Cited by 50 publications

References 30 publications

Performance of different biofilters in a recirculating system for rainbow trout farming

Performance of different biofilters in a recirculating system for rainbow trout farming

Taxonomy of Means and Ends in Aquaculture Production—Part 4: The Mapping of Technical Solutions onto Multiple Treatment Functions

Taxonomy of Means and Ends in Aquaculture Production—Part 3: The Technical Solutions of Controlling N Compounds, Organic Matter, P Compounds, Metals, Temperature and Preventing Disease

Contact Info

Product

Resources

About