DISSOLVED AIR FLOTATION IN SOUTHERN AFRICA

被引：2

作者：

OFFRINGA, G

机构：

[1] Water Research Commission, Pretoria, 0001

来源：

WATER SCIENCE AND TECHNOLOGY | 1995年 / 31卷 / 3-4期

关键词：

DISSOLVED AIR FLOTATION; EUTROPHIC WATER TREATMENT; INDUSTRIAL EFFLUENT TREATMENT; SLUDGE THICKENING;

D O I：

10.1016/0273-1223(95)00214-8

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A brief review is given of the historical development and current application of flotation technology in Southern Africa. Applications in water reclamation, sludge thickening, industrial effluents and water treatment are presented on the basis of some case studies and pilot investigations. Design philosophies followed are pointed out. Research and development performed and a few innovations by local engineers and scientists are highlighted. These include combination or integration of dissolved air flotation (DAF) with filtration, presettling and powdered activated carbon, a simple aeration nozzle, surface grids for float dewatering and stabilization, and a counter-current DAF.

引用

页码：159 / 172

页数：14