Development of an air removal system for dissolved air flotation

被引：13

作者：

Hedberg, T ^{[1
]}

Dahlquist, J

Karlsson, D

Sorman, LO

机构：

[1] Chalmers Univ Technol, Dept Sanit Engn, SE-41297 Goteborg, Sweden

[2] PURAC AB, SE-22105 Lund, Sweden

来源：

WATER SCIENCE AND TECHNOLOGY | 1998年 / 37卷 / 09期

关键词：

flotation; dissolved air flotation; lamella separation; water treatment;

D O I：

10.2166/wst.1998.0343

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Dissolved Air Flotation (DAF) is often used as a separation step in drinking water treatment. An increasing use of high rate processes has become a trend in chemical treatment. When increasing the loading rate for a flotation process, an increasing head loss built up occurs in the following filter process due to dispersed air carry over. This paper describes the development of an air removal system by using a lamella plate separation system for the dispersed air. Pilot plant experiments showed that the surface load for the combination Lamella Dissolved Air Flotation, the LDAF-unit can be considerably increased in comparison with a conventional DAF-unit. (C) 1998 IAWQ. Published by Elsevier Science Ltd.

引用

页码：81 / 88

页数：8