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Operation Conditions for Continuous DAF Process with Domestic DAF Pump  

An, Dae Myung (부산대학교 화학공학과)
Lee, Chang Han (부산대학교 화학공학과)
Ahn, Kab Hwan (부산가톨릭대학교 환경과학부)
Cho, Seok Ho (부산가톨릭대학교 환경과학부)
Kim, Seong-Soo (부산가톨릭대학교 환경과학부)
Publication Information
Journal of Korean Society of Water and Wastewater / v.18, no.2, 2004 , pp. 242-246 More about this Journal
Abstract
Dissolved air flotation (DAF) is an effective solid/liquid separation process for low density particles, such as algal flocs, humus materials and clay particles produced from low turbidity water. The fraction of humic substances for natural organic matters (NOMs) are considered problematic in water because it can readily react with chlorine to form harmful by-products (trihalomethanes) and can be exposed to undesirable color, tastes and odors in drinking water. A broad class of NOMs includes fulvic acid, humic acid and humin. This paper will discuss the results from a study that performed with a DAF pump process using synthetic wastewater contained humic substance. Batch jar tests were performed to evaluate coagulant dose and recycle ratio on flotation efficiency.
Keywords
DAF; DAF pump; dissolved air flotation; humic acid;
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