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Effect of Ozone Treatment for Nakdong River Raw Water - II. Removal of VOCs and Algae in Raw Water by Conducting Batch Test of Ozonation Experiments -

낙동강 상수원수의 오존처리 효과 - II. 회분식 오존처리에 의한 휘발성유기화합물 및 조류제거 효과 -

  • 임영성 (마산시 칠서정수장) ;
  • 이홍재 (경상대학교 응용생명과학부) ;
  • 이도진 (순천대학교 농업교육과) ;
  • 허종수 (경상대학교 응용생명과학부) ;
  • 손보균 (순천대학교 환경농업과학부) ;
  • 조주식 (순천대학교 환경농업과학부)
  • Published : 2002.12.01

Abstract

This study was carried out to evaluate the pollutant removal efficiencies of the advanced drinking water treatment using ozonation process. For raw water, Nakdong River was used. By conducting batch test of ozonation, the following results were obtained. When ozone dosage of $5 mg/{\ell}$ was used, ozone transfer and utilization efficiencies of the ozonation were 94 to 92%, respectively. Removal efficiencies of single VOC compound or mixed VOC compounds in the raw water were 80% to 90% by the ozonation with $2 mg/{\ell}$ dosage and 10 minutes contact time. Removal efficiencies of ABS by the ozonation with $1 mg/{\ell}$, $3 mg/{\ell}$ dosage and 20 minutes contact time were 83% to 96%, respectively. Almost 67% of chlorophyll-a at the concentration of $38.4\mu\textrm{g}/{\ell}$ was removed by ozonation at ozone dosage of $1 mg/{\ell}$ for 20 min. Considering the efficiency of ozone utilization and water treatment, the most effective ozonation could be obtained with high ozone dosage and short contact time.

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