• Title/Summary/Keyword: 해양 수질

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Requirements for Regulatory Mixing Zone on Outfall design and positioning (방류관의 설계 및 배치에서의 법적 혼합역의 필요)

  • Kim Jj-Yeon
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2004.11a
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    • pp.153-158
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    • 2004
  • The numerous investments have been introduced to design and assess mixing zone characteristics of wastewater discharges to the ocean. Specially It strive to meet water quality standard for persistent and bio-accumulative chemical contaminants at the point of discharge through continual improvement pollution prevention measures and other voluntary measures in the developed country. The goals that of this paper are to emphasize the regulatory mixing zone is defined as an allocated impact zone where the numeric water quality criteria may be exceeded as long as acutely toxic conditions are prevent. Furthermore, mixing zones be limited to an area or volume as small as practicable that with not interfere with the designated uses or the established community of aquatic life in the segment for which the uses are designated and the shape be a simple configuration that is easy to locate in the body of water and avoids impingement on biologically important areas and the shore hugging plumes should be avoided This results should be used with caution in evaluation the mixing zone characteristics of a discharge and only in conjunction with information from the effective marine outfall design as well as for the sound harbour design. Thus the numerical investigation using CORMIX has been performed to show the regulatory mixing zone in the near and far field of the marine outfall.

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The Concentration And Distribution Of Iron In Yeongil Bay Water Of Korea, Late October (가을철 영일만 해수중의 철분량과 그 분포)

  • Kwak, Hi-Sang
    • 한국해양학회지
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    • v.12 no.1
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    • pp.48-53
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    • 1977
  • Various types of iron were determined in 5 meters interval from surface to bottom layers in Yeongil Bay water of Korea, late October 1973. The contents of every type of iron decreased outward from the inner part to the entrance of the bay. But there was not any difference in iron contents among the water masses. Particulate iron and ferric iron were lower in the entrance and central parts than in the inner parts of the bay. It seemed to be caused by turbidity. The concentration of soluble iron showed higher value at the area of entrance of harbour than those of any other stations. It suggests that there may be the origin of pollutants.

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Development of evaluation method for TMDL water quality monitoring station of the Yeongsan and Seomjin river basins (영산강·섬진강 수계의 수질총량측정망 평가기법 개발과 적용)

  • Park, Sung Chun;Lee, Sam No;Gwak, Pil Jeong;Kim, Jung Soo;Park, Sung Mi
    • Proceedings of the Korea Water Resources Association Conference
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    • 2016.05a
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    • pp.487-491
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    • 2016
  • 영산강 섬진강수계는 1999년 한강수계(경기도 7개 시군)에서 임의제로 도입한 이후 2002년 낙동강, 금강수계와 함께 의무제 기반으로 오염총량제를 추진하고 있다. 이에 따라 2004년부터 영산강물환경연구소에서 영산강 섬진강수계의 단위유역 말단 지점의 유량과 수질을 약 8일 간격으로 동시에 측정함으로서 단위유역 내 오염원으로부터 배출된 오염물질이 말단에서 실제 나타나는 오염부하량(유달부하량)의 파악이 가능하게 되었다. 그러나 최근 4대강사업으로 하천의 구조적 수질관리 환경의 커다란 변화가 있어 기존 모니터링지점에 대한 전면적인 재검토가 필요하게 되었다. 본 연구에서는 영산강 섬진강수계의 수질총량측정망 총 56개 지점을 대상으로 설치목적과 선정기준에 대한 적합성평가를 위한 평가기법을 공간적 대표성, 수리학적 안정성, 시간적 대표성, 정보취득 안정성의 4개 특성과 13개 평가부문, 20개 평가항목으로 3단계 평가기법으로 구성하여 개발하였으며 평가 결과, I등급이 29개소(53%), II등급이 25개소(45%), III등급이 2개소(3%)로 평가되었으며, 변경 및 폐쇄 권장에 해당하는 IV~V등급으로 평가된 지점은 없는 것으로 평가되어 대체로 우수한 지점들로 구성되어 있음을 확인하였다.

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