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

被引：17

作者：

Padilha da Rocha e Silva, Fernanda C. ^{[1
,2
,4
]}

Padilha da Rocha e Silva, Nathalia M. ^{[2
,4
]}

de Moura, Alex Elton ^{[3
,4
]}

Galdino, Rodrigo Almeida ^{[1
,4
]}

Luna, Juliana Moura ^{[2
,4
]}

Rufino, Raquel Diniz ^{[2
,4
]}

dos Santos, Valdemir Alexandre ^{[2
,4
]}

Sarubbo, Leonie Asfora ^{[2
,4
]}

机构：

[1] Univ Fed Rural Pernambuco, Postgrad Program Biotechnol, Recife, PE, Brazil

[2] Univ Catolica Pernambuco, Ctr Sci & Technol, BR-50050900 Recife, PE, Brazil

[3] Univ Fed Pernambuco, Ctr Technol & Geosci, Recife, PE, Brazil

[4] Ctr Management Technol & Innovat, Recife, PE, Brazil

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2015年 / 50卷 / 04期

关键词：

dissolved air flotation; oily water treatment; pilot scale system; CCRD; biosurfactant; WATER; WASTE;

D O I：

10.1080/01496395.2014.957319

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：618 / 625

页数：8

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