한국환경과학회:학술대회논문집 (Proceedings of the Korean Environmental Sciences Society Conference)
- 한국환경과학회 1999년도 임시총회 및 가을 학술발표회 초록집 The Korean Environmental Sciences Society
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- Pages.221-223
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- 1999
Adsorption and Leaching of EPN in the Soil
- Kim, Jung-Ho (Faculty of Environmental Science and Engineering, Kyungsan University) ;
- Kam, Sang-Kyu (Dept. of Enviromental Engineering, Cheju National University) ;
- Park, Moon-Ki (Faculty of Environmental Science and Engineering, Kyungsan University) ;
- Moon, Yung-Soo (Faculty of Environmental Science and Engineering, Kyungsan University)
- 발행 : 1999.10.01
초록
The adsorption and leaching of organophosphorus pesticide, EPN are investigated in Namwon soil(black volcanic soil), Aewol soil(very dark brown volcanic soil) and Mureung soil(dark brown nonvolcanic soil) sampled in Cheju Island. The organic matter of Namwon soil, Aewol soil and Mureung soil is 19.8%, 6.2%, 2.4%, respectively. The cation exchange capacity of Namwon soil, Aewol soil and Mureung soil is 24.8 meq/100g, 13.0 meq/100g, 9.5 meq/100g, respectively. The Freundlich constant, K value, is 89.4, 26.9 and 9.25 for Namwon soil, Aewol soil and Mureung soil, respectively. The K value of Namwon soil with very high organic matter content and cation exchange capacity was the highest for Aewol soil and Mureung soil. The Freundlich constant, 1/n, show a high correlation with organic matter content, i.e., it is less than unity for organic matter rich soil of Namwon soil and greater than unity for organic matter poor soil of Mureung soil. The leaching of EPN is slower for Namwon soil with high K values, and faster for Mureung soil with low K values. The results of the study is demonstrated the potential of pollution for EPN have little leached into soil environment.
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