Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Performance of Backwashing Process in Biological Activated Carbon Column

생물활성탄접촉조에서 역세척 공정의 성능

  • Lee, Gangchoon (Department of Environmental Engineering/Center of Industrial Technology, Dong-eui University) ;
  • Yoon, Taekyung (Department of Environmental Engineering/Center of Industrial Technology, Dong-eui University) ;
  • Moon, Byunghyun (Department of Environmental Engineering, Changwon National University) ;
  • Noh, ByeongIl (Department of Advanced Materials Engineering, Dongseo University)
  • 이강춘 (동의대학교 환경공학과/산업기술개발연구소) ;
  • 윤태경 (동의대학교 환경공학과/산업기술개발연구소) ;
  • 문병현 (국립창원대학교 환경공학과) ;
  • 노병일 (동서대학교 신소재공학과)
  • Received : 2006.08.22
  • Accepted : 2006.10.16
  • Published : 2006.11.30
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Abstract

BAC backwashing process in ozone-BAC advanced water treatment process was experimentally studied. The operation and performance of backwashing were evaluated by measuring the effects of water temperature and water input rate on the backwashing interval and duration, and also the change of the amounts of biofilm and HPC in treated water before and after backwashing. The experiments were carried out with the pilot scale test module built in a existing water treatment plant, and the following results were obtained. Longer backwashing time than that of design operating condition was needed for satisfying the suitable turbidity of washing water effluent. Depending on water temperature, 7 days of backwashing cycle was recommended for the period lower than $15^{\circ}C$, and 10 days for the period higher than $15^{\circ}C$. After backwashing, the amounts of biofilm and HPC decreased to 1/10 and 80%, respectively.

Keywords

Acknowledgement

Supported by : 동의대학교

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