Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Removal of BrO3- from aqueous solution

수용액에서 브롬산 이온을 제거하는 방법

  • Lim, Heon-Sung (Center for Chemical Analysis, Korea Research Institute of Chemical Technology) ;
  • Kim, Chong-Hyeak (Center for Chemical Analysis, Korea Research Institute of Chemical Technology) ;
  • Lee, Sueg-Geun (Center for Chemical Analysis, Korea Research Institute of Chemical Technology)
  • 임헌성 (한국화학연구원 화학분석센터) ;
  • 김종혁 (한국화학연구원 화학분석센터) ;
  • 이석근 (한국화학연구원 화학분석센터)
  • Received : 2011.08.16
  • Accepted : 2011.09.05
  • Published : 2011.10.25
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Abstract

The efficient removal of bromate ($BrO_3^-$) from aqueous solutions was investigated using activated alumina. Bromate is a disinfection by-product, generally formed by the reaction of ozone and bromide in drinking water during ozonation process. The removal efficiency was about 90% for bromate (500 ng/mL) ion with acidic activated alumina but over 95% with silver or aluminum treated acidic activated alumina without any treatments of neutral water within 1~2 min.

본 연구는 수용액 중의 발암물질로 규제되고 있는 브롬산 이온($BrO_3^-$)을 제거하는 방법에 관한 것이다. 브롬산 이온은 먹는 물의 정수 과정 중 브롬 이온의 존재 하에 오존 처리과정에서 생성되는 물질이다. 본 방법은 별다른 물리적 화학적 변화의 과정이 필요하지 않고, 활성알루미나를 이용하여 효과적으로 제거할 수 있어 먹는 물 등의 정수에도 유용하게 적용될 수 있다. 브롬산 이온 500 ${\mu}g$/L 농도의 용액을 표면 개질된 산성 활성알루미나를 사용하여 1~2 분 내에 95% 이상 제거하는 효과를 나타내었다.

Keywords

References

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