Water Quality Impacts of Three Biofilter Designs in Recirculating Aquaculture Systems

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dc.contributor.authorHall, A. G.en
dc.contributor.authorHallerman, Eric M.en
dc.contributor.authorLibey, George S.en
dc.contributor.departmentFish and Wildlife Conservationen
dc.contributor.editorSmith, Stephen Allenen
dc.date.accessioned2019-06-25T16:55:02Zen
dc.date.available2019-06-25T16:55:02Zen
dc.date.issued2002-06-01en
dc.description.abstractNine recirculating aquaculture systems utilizing three biofilter types were placed on line and stocked with yellow perch, Percaflavescens, fingerlings. Biofilter type differed among systems, and included upflow pulsed bed bead filter, packed tower trickling filter, and rotating biological contactor. Following filter acclimation, a comparative analysis of biofilter performance was conducted, involving measurement of temperature, pH, dissolved oxygen, total ammonia-nitrogen, nitritenitrogen, nitrate-nitrogen, alkalinity, total hardness, carbonaceous biochemical oxygen demand, dissolved organic carbon, and total suspended solids. Filter bed emergence promoted effective carbon dioxide stripping, pH maintenance, and consistent nitrification performance in trickling filters and rotating biological contactors. Higher total ammonia nitrogen mass removal rates were observed in trickling and rotating biological contactor filters than in bead filters. Low total ammonia nitrogen mass removal rates and nitrification efficiencies for all filters resulted from relatively high carbonaceous biological oxygen demand loadings. Analysis of areas under mass removal curves showed that RBC filters were surface area limited. Foam formation in trickling filters effectively removed total suspended solids from the culture water. Filter type did not have a significant effect on median organic water quality parameter values in the production tanks. Although differences in nitrification performance and certain water quality parameters were observed between filter types, the data set did not indicate that one filter type should be considered generally most effective at treating wastewater produced in a recirculating aquaculture system.en
dc.format.extent27 pagesen
dc.format.extent1.25 MBen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHall, A.G., Hallerman, E.M. and Libey, G.S., 2002. Water Quality Impacts of Three Biofilter Designs in Recirculating Aquaculture Systems. International Journal of Recirculating Aquaculture, 3. DOI: http://doi.org/10.21061/ijra.v3i1.1457en
dc.identifier.doihttps://doi.org/10.21061/ijra.v3i1.1457en
dc.identifier.eissn2572-9160en
dc.identifier.issn1547-917Xen
dc.identifier.issue1en
dc.identifier.urihttp://hdl.handle.net/10919/90586en
dc.identifier.volume3en
dc.language.isoenen
dc.publisherCommercial Fish and Shellfish Technologies Program, Virginia Techen
dc.rightsIn Copyrighten
dc.rights.holderCommercial Fish and Shellfish Technologies Program, Virginia Techen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectWater Qualityen
dc.subjectRecirculating Aquaculture Systemsen
dc.titleWater Quality Impacts of Three Biofilter Designs in Recirculating Aquaculture Systemsen
dc.title.serialInternational Journal of Recirculating Aquacultureen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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International Journal of Recirculating Aquaculture
Scholarly Works, Fish and Wildlife Conservation