A study on removal effect of Endosulfan in soil and aquatic system

수질 및 토양 중 Endosulfan 제거효과에 관한 연구

  • 안중혁 (강릉대학교 환경응용화학공학과) ;
  • 이석종 (강원도보건환경연구) ;
  • 이완 (강원도보건환경연구) ;
  • 김준범 (강릉대학교 환경응용화학공학과) ;
  • 이광춘 (강원도보건환경연구) ;
  • 권영두 (한중대학교 환경공학과) ;
  • 전충 (강릉대학교 환경응용화학공학과) ;
  • 박광하 (강릉대학교 환경응용화학공학과)
  • Received : 2006.01.09
  • Accepted : 2006.02.14
  • Published : 2006.04.27

Abstract

In this study, a series of experiments were conducted using a standard solution containing ${\alpha}$ and ${\beta}$-endosulfan to follow the removal effect of residual pesticides on soil and aqueous solution. An analytical method for residual pesticides was established by a gas chromatography equipped Ultra II[$(30m{\times}0.25mm(ID){\times}0.25{\mu}m$] capillary column and a ${\mu}$-electron capture detector(${\mu}$-ECD). Recovery rates of residual pesticides for soil samples were 96-100%. The amount of ${\alpha}$ and ${\beta}$-endosulfan that was spread in the soil was checked for various period of time. It indicated that the amount was reduced to 73 and 61%, respectively. When the water spread amount increased from 10 to 100 mL, ${\alpha}$-endosulfan was eliminated from 45 to 85% and while ${\beta}$-endosulfan from 44 to 88%. Removal rates of ${\alpha}$-endosulfan and ${\beta}$-endosulfan were 99% and 98% respectively within 30 minutes. It was assumed that the organic salts and strong alkali elements contained in the pesticide degradator hydrolyzed the residual pesticide.

Keywords

pesticides;${\alpha}$-Endosulfan;${\beta}$-Endosulfan;${\mu}$-electron capture detector

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