Reuso de água em um sistema integrado com peixes, sedimentação, ostras e macroalgas

• Ano de defesa: 2006
• Autor(a) principal: Cavalcante Júnior, Valdemar
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Palavras-chave em Português: Integrated aquaculture; Sistema integrado; Aquicultura; Reuso de água; Engenharia de pesca; Recirculation; Nutrients; Água - Reutilização; Reservatórios - Sedimentação
• Link de acesso: http://www.repositorio.ufc.br/handle/riufc/18659

Intensive culture effluents have high levels of dissolved nutrients mainly ammonia and others suspended solids. The objective of this work was to use integrated aquaculture with fishes, sedimentation, oysters and macroalgae to improve water quality from a salt water tilapia culture. The fishes water was distributed in three sedimentation aquariums to a 24 h period. Then, water was removed to three oysters aquariums to a equal 24 h period. Later, oysters water was removed to three macroalgae aquariums to more 24 h. Finally, macroalgae water returned to the fishes aquariums. Water turbidity and ammonia, nitrates, nitrites and phosphates concentrations were determined daily. The system was efficient to significantly reduce turbidity and ammonia and phosphates water levels. Nitrates and nitrites levels only were reduced during the sedimentation after system stabilization