Treatment of oily wastewater by ultrafiltration and ozone

被引：86

作者：

Chang, IS ^{[1
]}

Chung, CM

Han, SH

机构：

[1] Hoseo Univ, Dept Environm Engn, Asan 336795, Chung Nam, South Korea

[2] Hanwha Chem Co, Environm Res Ctr, Taejon 305345, South Korea

来源：

DESALINATION | 2001年 / 133卷 / 03期

关键词：

membrane; oily wastewater; ozone; reuse; surfactant; ultrafiltration;

D O I：

10.1016/S0011-9164(01)00103-5

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An experimental study to treat and reuse oily wastewater generated from the automobile-components manufacturing industry was performed. The feasibility of using an ultrafiltration (UF) membrane and ozone treatment to reuse oily wastewater was investigated. The UF membrane system (capacity, 5 t/d) was employed to treat two kinds of degreasing wastewater and cutting oil wastewater. Flux behavior and organic removal strongly depended on the type of oily wastewater. The UF permeates from the degreasing wastewater could be reused as make-up water. However, the cutting oil formulated with the UF permeates had very different characteristics such as emulsion size and foaming ratio because surfactant existed excessively in the UF permeates. Partial oxidation of surfactants in UF permeates using ozone makes it unable to change the emulsion size, foaming ratio and refractory index, and thus, possible to reuse the UF permeates as process water.

引用

页码：225 / 232

页数：8

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