Treatment of milk industry effluent by dissolved air flotation



Título del documento: Treatment of milk industry effluent by dissolved air flotation
Revista: Brazilian journal of chemical engineering
Base de datos: PERIÓDICA
Número de sistema: 000308974
ISSN: 0104-6632
Autors: 1

Institucions: 1Universidade Federal do Rio de Janeiro, Instituto Alberto Luiz Coimbra de Pos-Graduacao e Pesquisa de Engenharia, Rio de Janeiro. Brasil
Any:
Període: Ene
Volum: 21
Número: 1
Paginació: 83-91
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés In this work, the application of the flotation technique by dissolved air (FAD) to the treatment of milk industry effluent (milky effluent) is analyzed. Initially, batch studies were carried out in a column built of acrylic with an external diameter of 2.5 cm and 50 cm in height. Afterwards, the performance of a flotation tank with a 5.5 L capacity in the treatment of the milky effluent was addressed. In continuous mode of operation, separation efficiencies up to 90% were obtained for the experiments carried out at a saturation pressure of 4 atm and having a ratio of feed flow rate (Qa) to saturated liquid flow rate equal to 1. The separation efficiency for flocculated milk was estimated from the overall mass balance for the flotation tank. Separation efficiencies obtained agreed very well with the experimental results collected for Qa/Q Ls ratios lower than 1
Disciplines Ingeniería,
Química
Paraules clau: Ingeniería ambiental,
Ingeniería química,
Industria lechera,
Tratamiento de efluentes,
Flotación por aire disuelto,
Modelado
Keyword: Engineering,
Chemistry,
Chemical engineering,
Environmental engineering,
Dairy industry,
Effluent treatment,
Dissolved air flotation,
Modeling
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