낙동강에서 유기오염 및 SS 농도 변화에 따른 DOC 농도 변화의 특성
분야
공학 > 환경공학
저자
이규열 ( Kyu Yeol Lee ) , 김주언 ( Ju Eon Kim ) , 이권철 ( Kwon Chul Lee ) , 이경락 ( Kyung Lak Lee ) , 이인정 ( In Jung Lee ) , 임태효 ( Tea Hyo Im )
발행기관
한국물환경학회(구 한국수질보전학회)
간행물정보
한국물환경학회지 2013년, 제29권 제4호, 540~550페이지(총11페이지)
파일형식
07709903.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    Temporal increase of SS induces concentrations in various forms of organic matter including BOD, COD, TOC. Consequently, it causes hard to identify sources of water pollution during or after precipitation. The objective of this study is to investigate variations of DOC concentration caused by increase of flow and changes of external factors in river by comparing to SS concentration. In results, monitoring sites (e.g., Banbyeonchen) consisting of hard riverbed showed high correlation between SS and organic matters, except BOD. On the contrary, other sites (e.g., Naesungcheon) where riverbed consists of sand were found in a wide range of annual fluctuation in SS level, whereas these sites showed a narrow range in annual DOC fluctuation. In Gumhogang and Namgang, a lower correlation between SS and other factors was found most likely because of high concentration in organic matter. However, lower annual fluctuation values of DOC were observed in comparison to those of COD and TOC. Similar results were also confirmed in main river sites, Sangju and Mulgeum. In conclusion, DOC concentration is better indicator for monitoring organic matter which cannot be provided by BOD, COD, TOC in the Nakdong river basin.
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