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Author(s): Raquel O. Cristóvão
Víctor M. S. Pinto
Ramiro J. E. Martins
José M. Loureiro
Rui A. R. Boaventura
Title: Assessing the influence of oil and grease and salt content on fish canning wastewater biodegradation through respirometric tests
Issue Date: 2016
Abstract: Fish canning industry wastewaters have high organic matter, oil and grease and salt (NaCl) content,which make difficult a proper treatment before discharge. In this work, their treatment was evaluated viaactivated sludge aerobic biological process through respirometric tests. Inhibition was found to be significant for NaCl concentrations higher than 17.5 g/L. On the other hand, the oil and grease content affectsthe wastewater biodegradability in the same way that the organic matter content expressed as chemicaloxygen demand: the lower oil and grease and organic matter concentrations, the lower the percentage ofwastewater biodegradability. As a final conclusion, the aerobic biological treatment process by activatedsludge proved to be appropriate to treat fish canning industrial wastewaters, leading to high organicmatter degradation rates (average value of 4900 mgO2/gCOD.d). Additionally, the experimental resultsachieved with the respirometric tests may be useful for the design of activated sludge plants to treat thistype of wastewaters.
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/UID/EQU/50020/2013- POCI-01-0145-FEDER-006984/Laboratório de Processos de Separação e Reação - Laboratório de Catálise e Materiais/LSRE-LCM
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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