Removal of diesel from aqueous emulsions by flotation

被引：13

作者：

Feng, D ^{[1
]}

Aldrich, C ^{[1
]}

机构：

[1] Univ Stellenbosch, Dept Chem Engn, Inst Intelligent Proc Syst & Mineral Proc, ZA-7602 Stellenbosch, South Africa

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2000年 / 35卷 / 13期

关键词：

induced air flotation; diesel; emulsions;

D O I：

10.1081/SS-100102095

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The induced air flotation of aqueous diesel oil emulsions generated during the remediation of contaminated sand has been studied experimentally in a batch flotation column 35 mM in diameter and 300 mM in height. The stability of these emulsions was characterized and factors such as pH and salinity affecting the stability of the emulsion were investigated. The effects of anionic and cationic surfactants, original diesel content, air-flow rate, surfactant dosage, and the air distributor sinter size were investigated, and it was found that up to 99% of the diesel could be removed. This amounted to a residual diesel concentration of less than 10 ppm.

引用

页码：2159 / 2172

页数：14

共 18 条

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