Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Removal of Ammonia Nitrogen and Reduction of THMs in Low Temperature by BAC Pilot Plant

BAC Pilot Plant 를 이용한 겨울철 암모니아성 질소 제거 및 THMs 변화

  • 강은조 (삼성엔지니어링(주) 기술연구소) ;
  • 서영진 (삼성엔지니어링(주) 기술연구소) ;
  • 이원권 (삼성엔지니어링(주) 기술연구소) ;
  • 전병희 (부산대학교 공과대학 환경공학과 대학원) ;
  • 이지형 (부산대학교 공과대학 환경공학과 대학원) ;
  • 윤정효 (부산대학교 공과대학 환경공학과 대학원) ;
  • 김동윤 (부산대학교 공과대학 환경공학과)
  • Published : 1995.09.15
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Abstract

The raw drinking water quality is getting worse because of the winter drought and the conventional treatment system is'nt suitable to obtain the satisfied quality of water. So, the advanced water system, BAC(Biological Activated Carbon) process is said to be effective to remove dissolved organics and ammonia nitrogen. In our study, the BAC pilot plant using Nak-dong river water is tested in low temperature. Following results are found from the study. The ammonia nitrogen removal rate of BAC system using wood-based carbon (PICABIOL) was 99% in $6^{\circ}C$ temperature. Chlorine dosage in wood-based BAC effluent was reduced to 67% of that in sand filtered wate. It resulted from the removal of ammonia nitrogen. Also, THM formed by chlorine addition in wood-based BAC effluent was decreased to 65% of that in sand filtered water. In the case of dual-filter, the removal efficiency of ammonia nitrogen was increased 30% more than in conventional sand filter. According to this result, the ammonia nitrogen load to BAC system could be lessened by the use of dual-filter.

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