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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
26/01/2024 |
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Data da última atualização: |
26/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GOMES, A. C. C.; SILVA, A. F.; PEREIRA, M. C. T. |
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Afiliação: |
AUGUSTO CÉSAR CAVALCANTI GOMES, Universidade Federal do Rio Grande do Norte; ALINEAUREA FLORENTINO SILVA, CPATSA; MARIA CAROLINA TONIZZA PEREIRA, UNIVASF. |
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Título: |
Ecotechnologies for aquaculture wastewater treatment in a water-scarce region. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Brazilian Archives of Biology and Technology, v. 67, e24220827, 2024. |
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ISSN: |
1678-4324 |
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DOI: |
https://doi.org/10.1590/1678-4324-2024220827 |
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Idioma: |
Inglês |
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Conteúdo: |
In aquaculture, biological treatments usually have an excellent benefit-cost ratio. This study evaluated the efficiency of different ecotechnologies on aquaculture wastewater treatment. Two experimental units were installed. In the first one, tanks were individually vegetated with free-floating aquatic macrophytes. In the second experimental unit, 10.72 m² of artificial substrate were added for periphyton colonization. The hydraulic retention time of the wastewater was of 30 days. Both physical and chemical characterizations of the effluent were carried out at the beginning and at the end of the experiment. The periphyton community attached to the substrate was catalogued. In the first unit, the pH, nitrite, and orthophosphate values were significantly different. The tanks vegetated with Azolla filiculoides were the only ones where the electrical conductivity values were reduced. Tanks vegetated with Azolla filiculoides and Pontederia crassipes presented decreased the nitrate concentration. On the other hand, the concentration of ammonia and total phosphorus decreased in all vegetated tanks. In the second unit, only the nitrate and ammonia values did not decrease in the last day of the experiment. 33 taxa belonging to the classes Cyanophyceae, Chlorophyceae, Bacillariophyceae, Trebouxiophyceae, Coleochaetophyceae, Coscinodiscophyceae and Zygnematophyceae were identified in the substrate. The experimental units were effective in mitigating the nutrients in aquaculture wastewater that cause eutrophication. MenosIn aquaculture, biological treatments usually have an excellent benefit-cost ratio. This study evaluated the efficiency of different ecotechnologies on aquaculture wastewater treatment. Two experimental units were installed. In the first one, tanks were individually vegetated with free-floating aquatic macrophytes. In the second experimental unit, 10.72 m² of artificial substrate were added for periphyton colonization. The hydraulic retention time of the wastewater was of 30 days. Both physical and chemical characterizations of the effluent were carried out at the beginning and at the end of the experiment. The periphyton community attached to the substrate was catalogued. In the first unit, the pH, nitrite, and orthophosphate values were significantly different. The tanks vegetated with Azolla filiculoides were the only ones where the electrical conductivity values were reduced. Tanks vegetated with Azolla filiculoides and Pontederia crassipes presented decreased the nitrate concentration. On the other hand, the concentration of ammonia and total phosphorus decreased in all vegetated tanks. In the second unit, only the nitrate and ammonia values did not decrease in the last day of the experiment. 33 taxa belonging to the classes Cyanophyceae, Chlorophyceae, Bacillariophyceae, Trebouxiophyceae, Coleochaetophyceae, Coscinodiscophyceae and Zygnematophyceae were identified in the substrate. The experimental units were effective in mitigating the nutrients in aquaculture wastewa... Mostrar Tudo |
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Palavras-Chave: |
Biorremediação; Comunidade aquática; Escassez de água; Processo de fitorremediação; Região semiárida. |
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Thesagro: |
Água; Águas Residuais; Aquicultura; Eutrofização; Piscicultura; Tratamento da Água. |
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Thesaurus Nal: |
Aquaculture; Bioremediation; Eutrophication; Phytoremediation; Wastewater; Wastewater aquaculture; Wastewater treatment. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1161353/1/Ecotechnologies-for-Aquaculture-Wastewater-Treatment-in-a-Water-Scarce-Region-2024.pdf
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Marc: |
LEADER 02671naa a2200385 a 4500
001 2161353
005 2024-01-26
008 2024 bl uuuu u00u1 u #d
022 $a1678-4324
024 7 $ahttps://doi.org/10.1590/1678-4324-2024220827$2DOI
100 1 $aGOMES, A. C. C.
245 $aEcotechnologies for aquaculture wastewater treatment in a water-scarce region.$h[electronic resource]
260 $c2024
520 $aIn aquaculture, biological treatments usually have an excellent benefit-cost ratio. This study evaluated the efficiency of different ecotechnologies on aquaculture wastewater treatment. Two experimental units were installed. In the first one, tanks were individually vegetated with free-floating aquatic macrophytes. In the second experimental unit, 10.72 m² of artificial substrate were added for periphyton colonization. The hydraulic retention time of the wastewater was of 30 days. Both physical and chemical characterizations of the effluent were carried out at the beginning and at the end of the experiment. The periphyton community attached to the substrate was catalogued. In the first unit, the pH, nitrite, and orthophosphate values were significantly different. The tanks vegetated with Azolla filiculoides were the only ones where the electrical conductivity values were reduced. Tanks vegetated with Azolla filiculoides and Pontederia crassipes presented decreased the nitrate concentration. On the other hand, the concentration of ammonia and total phosphorus decreased in all vegetated tanks. In the second unit, only the nitrate and ammonia values did not decrease in the last day of the experiment. 33 taxa belonging to the classes Cyanophyceae, Chlorophyceae, Bacillariophyceae, Trebouxiophyceae, Coleochaetophyceae, Coscinodiscophyceae and Zygnematophyceae were identified in the substrate. The experimental units were effective in mitigating the nutrients in aquaculture wastewater that cause eutrophication.
650 $aAquaculture
650 $aBioremediation
650 $aEutrophication
650 $aPhytoremediation
650 $aWastewater
650 $aWastewater aquaculture
650 $aWastewater treatment
650 $aÁgua
650 $aÁguas Residuais
650 $aAquicultura
650 $aEutrofização
650 $aPiscicultura
650 $aTratamento da Água
653 $aBiorremediação
653 $aComunidade aquática
653 $aEscassez de água
653 $aProcesso de fitorremediação
653 $aRegião semiárida
700 1 $aSILVA, A. F.
700 1 $aPEREIRA, M. C. T.
773 $tBrazilian Archives of Biology and Technology$gv. 67, e24220827, 2024.
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Embrapa Semiárido (CPATSA) |
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