Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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An Experimental Study on the Behavior of Phenol, 1,4-dioxane and Diazinon along the Travel Distance in Riverbank Filtration

강변여과에서 여과거리에 따른 페놀, 1,4-다이옥산 그리고 다이아지논의 거동에 관한 실험연구

  • Choi, Hong-Gyu (Water Resources Engineering Corporation) ;
  • Jeong, Il-Hwa (Department of Environmental Engineering, Yeungnam University) ;
  • Jung, Kwan-Sue (Department of Civil Engineering, Chungnam National University) ;
  • Lee, Young-Deuk (Division of Life and Environmental Science, Daegu University) ;
  • Kim, Seung-Hyun (Department of Environmental Engineering, Yeungnam University)
  • Received : 2013.04.09
  • Accepted : 2013.05.23
  • Published : 2013.06.30
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Abstract

An experiment using a 5 m-long sand column was performed to evaluate the resisting capability against micro-pollutants of the infiltration gallery, multi-purpose filtration pond and riverbank/bed filtration, of which the filtration distance is becoming increasingly shorter in Korea. Results suggested that the Korean riverbed sand contained significant amount of organics, resulting in a relatively vigorous adsorption of chloride ion on the sand surface. Results also indicated that while phenol was not detected in the column filtrate, both 1,4-dioxane and diazinon were exposed to adsorption by the sand as they moved through the column, decreasing their peak concentrations during the movement. It can be expected that the peak concentrations will diminish significantly in the practical scale due to its longer travel distance.

복류수와 천변여과지 그리고 점차 여과거리가 짧아지고 있는 우리나라의 강변/하상여과 등이 가지는 미량오염물에 대한 저항능력을 평가하기 위하여 5 m 길이의 모래칼럼을 이용한 실험을 수행하였다. 실험결과 우리나라 하상의 토양은 유기물 함량이 상당하여 염소이온의 토양표면 흡착이 비교적 활발함 알 수 있었다. 페놀은 칼럼의 여과수에서 검출되지 않았고, 1,4-다이옥산과 다이아지논은 하상토양과 흡착반응을 일으키면서 이동하며, 2.5 m의 이동과정에서 1,4-다이옥산의 첨두농도는 유입농도의 약 40%로 그 농도가 감소하였고, 다이아지논의 첨두농도는 약 60%로 감소하는 것으로 나타났다. 실규모 설비에서는 여과거리가 5 m 보다 더 길기 때문에 첨두농도의 감소효과는 상당히 클 것으로 기대되었다.

Keywords

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