Grasas y Aceites, Vol 49, No 1 (1998)

Polluting potential of wastewater from fish meal and oil industries.


https://doi.org/10.3989/gya.1998.v49.i1.704

Santiago Mendiola
Departamento de Ciencias y Técnicas de la Navegación y Construcción Naval, Universidad de Cantabria, Spain

Juan J. Achútegui
Departamento de Ciencias y Técnicas de la Navegación y Construcción Naval, Universidad de Cantabria, Spain

Francisco J. Sánchez
Departamento de Ciencias y Técnicas de la Navegación y Construcción Naval, Universidad de Cantabria, Spain

Mª José San José
Departamento de Ingeniería Química, Facultad de Ciencias. Universidad del País Vasco, Spain

Abstract


. In this study we addressed the polluting potential that constitutes the disposal of wastewater from the fish meal and oil Industries Into the sea. With this aim we have analysed some phisico-chemical and bacteriologic aspects of the effluents of these industries, including: weight percentage of organic matter, chemical oxygen load, fatty acids saturation, and presence of Salmonellas. The results suggest a low polluting potential for these effluents, although the acid pH and the high rate of saturation found In fatty acids of oil fishes could imply a certain toxicity for the marine environment.

Keywords


Fish meal; Fish oil; Industrial waste; Marine pollution.

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