Separation of fine particles by using colloidal gas aphrons

被引：0

作者：

Mansur, EA ^{[1
]}

Wang, YD ^{[1
]}

Dai, YY ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Chem Engn, State Key Lab Chem Chem, Beijing 100084, Peoples R China

来源：

CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2004年 / 12卷 / 02期

关键词：

separation; colloidal gas aphrons; flotation; surfactant;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper presents a method of separation of fine particles, of the order of a few microns or less, from aqueous media by flotation using colloidal gas aphrons (CGAs) generated in aqueous solutions. More than 150 experiments were conducted to study the effects of surfactant type, surfactant concentration, CGAs flow rate, and particle concentration on the removal efficiency (fine particles of polystyrene were used as a target compound). The results indicate that CGAs, generated from cationic surfactant of hexdecyltrimethyl ammonicum bromide (HTAB) and anionic surfactant of sodium dodecylbenzne sulfonate (SDBS), are an effective method for the separation of fine particles of polystyrene from wastewater. The flotation yields are higher than 97%.

引用

页码：286 / 289

页数：4