Effect of Biosurfactant Addition in a Pilot Scale Dissolved Air Flotation System

Effluent production of oily water type has generated many environmental problems for several industries. The use of flotation as a separation process of oily waters has been described, although it has been sometimes criticized due to the toxicity of collectors. The development and use of biodegradab...

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Bibliographic Details
Published in:	Separation science and technology Vol. 50; no. 4; pp. 618 - 625
Main Authors:	da Rocha e Silva, Fernanda C. Padilha, da Rocha e Silva, Nathália M. Padilha, de Moura, Alex Elton, Galdino, Rodrigo Almeida, Luna, Juliana Moura, Rufino, Raquel Diniz, dos Santos, Valdemir Alexandre, Sarubbo, Leonie Asfora
Format:	Journal Article
Language:	English
Published:	Taylor & Francis 04-03-2015
Subjects:	biosurfactant CCRD dissolved air flotation oily water treatment pilot scale system
Online Access:	Get full text
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Summary:	Effluent production of oily water type has generated many environmental problems for several industries. The use of flotation as a separation process of oily waters has been described, although it has been sometimes criticized due to the toxicity of collectors. The development and use of biodegradable surfactants may enhance the further acceptance of this separation technology. This work investigated the removal of the emulsified oil products in water by dissolved air flotation (DAF) with and without the use of a biosurfactant, in pilot scale. The biosurfactant added considerable value to the process, increasing from 80.0% to 98.0% the separation efficiency.
ISSN:	0149-6395 1520-5754
DOI:	10.1080/01496395.2014.957319