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Registros recuperados: 5
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Biofilter efficiency of Eichhornia crassipes in wastewater treatment of fish farming in Amazonia: Eficiencia de Eichhornia crassipes como biofiltro en el tratamiento de aguas residuales de la piscicultura en el Amazonas Phyton
Rubim,MAL; Isolino Sampaio,PR; Parolin,P.
Fish is a very important part of the human diet in Amazonia. Near the growing cities, fish populations and individual size have decreased over the past decades. Alternatives to traditional and industrial fishing arise, including fish farming. Strategies to minimize the impact of fish farms on the environment are needed to have a regular and healthy fsh supply. This is to avoid a reduction of biodiversity, a depletion of natural resources, and/or the induction of significant changes in the structure and functioning of adjacent ecosystems. Very little research has been performed on management of efluents as to maintain the quality of water resources. The present study aimed at testing the efficiency of the Amazonian aquatic macrophyte Eichhornia crassipes as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquaculture; Amazon; Effluent; Fish farming; Biofilters; Aquatic macrophytes; Water hyacinth.
Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000100031
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Capacité des moules dans la réduction des teneurs en nutriments et la charge bactérienne dans les effluents piscicoles OceanDocs
Chebil Ajjabi, L.; Romdhane, M.S.; El Abed, A..
L’effluent des élevages de poissons renferme des concentrations plus élevées en nutriments dissous et en particules en suspension que celles présentes dans l’eau entrante. Cet état entraine par conséquent, des problèmes d’ordre environnementaux affectant les eaux côtières dues à l’eutrophisation et l’augmentation de la turbidité. Afin d’améliorer la qualité de l’effluent avant son déversement dans le milieu naturel, l’utilisation des bivalves comme filtre biologique est une alternative adéquate. Cette étude analyse la capacité de la moule Mytilus galloprovincialis de réduire les teneurs en sels nutritifs et la charge bactérienne dans les effluents de loups Dicentrarchus labrax en élevage. L’effluent issu des bassins de grossissement est pompé directement...
Tipo: Journal Contribution Palavras-chave: Aquaculture effluents; Bacteria; Biofilters; Chlorophylls; Chlorophylls; Culture effects; Density; Effluents; Filtration; Fish; Mussel culture; Nitrogen; Nutrients (mineral); Phosphorus; Suspended particulate matter; Wastewater recycling; Wastewater treatment; Water quality; Fish; Nitrogen; Phosphorus; Water quality; Mussels; Nutrients; Bacteria; Chlorophylls; Density; Effluents; Filtration; Wastewater treatment.
Ano: 2008 URL: http://hdl.handle.net/1834/3756
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Capacité des moules dans la réduction des teneurs en nutriments et la charge bactérienne dans les effluents piscicoles OceanDocs
Romdhane, M.S.; Chebil Ajjabi, L.; El Abed, O..
L’effluent des élevages de poissons renferme des concentrations plus élevées en nutriments dissous et en particules en suspension que celles présentes dans l’eau entrante. Cet état entraine par conséquent, des problèmes d’ordre environnementaux affectant les eaux côtières dues à l’eutrophisation et l’augmentation de la turbidité. Afin d’améliorer la qualité de l’effluent avant son déversement dans le milieu naturel, l’utilisation des bivalves comme filtre biologique est une alternative adéquate. Cette étude analyse la capacité de la moule Mytilus galloprovincialis de réduire les teneurs en sels nutritifs et la charge bactérienne dans les effluents de loups Dicentrarchus labrax en élevage. L’effluent issu des bassins de grossissement est pompé directement...
Tipo: Journal Contribution Palavras-chave: Aquaculture effluents; Bacteria; Biofilters; Chlorophylls; Culture effects; Density; Effluents; Filtration; Fish; Mussel fisheries; Nitrogen; Nutrients (mineral); Phosphorus; Suspended particulate matter; Wastewater treatment; Water quality; Mytilus galloprovincialis; Wastewater treatment; Mussels; Nutrients; Http://aims.fao.org/aos/agrovoc/c_31155; Http://aims.fao.org/aos/agrovoc/c_25312; Http://aims.fao.org/aos/agrovoc/c_5010; Http://aims.fao.org/aos/agrovoc/c_5274.
Ano: 2008 URL: http://hdl.handle.net/1834/4154
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C/N ratio-induced structural shift of bacterial communities inside lab-scale aquaculture biofilters ArchiMer
Michaud, Luigi; Lo Giudice, Angelina; Interdonato, Filippo; Triplet, Sebastien; Ying, Luo; Blancheton, Jean-paul.
In Recirculating Aquaculture Systems (RAS) various chemical compounds (mainly nitrates and organic carbon) accumulate in the rearing water. These chemical substrata regulate the ecophysiology of the bacterial communities of the biofilter and have an impact on its nitrification efficiency and reliability. In the present study chemical and microbiological parameters in static mineral bed (SBB) and moving plastic bed (MBB) biological filters were monitored at increasing C/N ratios ranging from 0 (pure nitrification) to 4 (combined nitrification and organic carbon removal), with the aim to investigate the shift of the bacterial community structure and major taxa relative abundances. Results suggest that the MBB are less subjected to the nitrification...
Tipo: Text Palavras-chave: Recirculating aquaculture system; Biofilters; C/N ratio; Microbial community structure.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00167/27846/26070.pdf
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The use of high rate algal ponds for the treatment of marine effluent from a recirculating fish rearing system ArchiMer
Pagand, Pascal; Blancheton, Jean-paul; Lemoalle, J; Casellas, C.
A high rate algal pond (HRAP) system was used to treat effluent from a recirculating sea water aquaculture system in southern France. Dicentrarchus labrax L. were farmed at a high density, with effluents containing an average of 10 mg L-1 dissolved inorganic nitrogen (DIN) and 1.3 mg L-1 reactive phosphorus (RP). On a yearly basis, the algal pond removed 59% of the dissolved nitrogen and 56% of the phosphorus input, which was converted into 3.3 kg DW m(-2) algae. Green macroalgae were dominant throughout the year and the algal biomass mirrored the seasonal changes in daily irradiance and temperature. This first year study supports the possibility of treating marine aquaculture wastes using HPAPs, although conditions will have to be found to mitigate the...
Tipo: Text Palavras-chave: Nitrogen; Biofilters; Irradiance; Temperature; Photosynthesis; Growth; Culture; Chlorophyta; Nutrient Removal.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/publication-515.pdf
Registros recuperados: 5
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