Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Operation Conditions for Continuous DAF Process with Domestic DAF Pump

국산 DAF 펌프가 적용된 연속 DAF 공정의 운전 조건

  • 안대명 (부산대학교 화학공학과) ;
  • 이창한 (부산대학교 화학공학과) ;
  • 안갑환 (부산가톨릭대학교 환경과학부) ;
  • 조석호 (부산가톨릭대학교 환경과학부) ;
  • 김성수 (부산가톨릭대학교 환경과학부)
  • Received : 2003.11.21
  • Accepted : 2004.03.03
  • Published : 2004.04.15
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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.

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