Journal of the Korean Society for Marine Environment & Energy (한국해양환경ㆍ에너지학회지)

The Korean Society for Marine Environment and Energy (한국해양환경•에너지학회)
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Distribution Characteristics and Cost Estimation of Collection and Treatment of Deposited Marine Debris in Coastal Fisheries around the Southwestern Islands of Korea

서남해 주요 도서 연안 어장 침적쓰레기의 분포 실태 조사 및 수거 처리 비용 추정

  • Received : 2012.10.24
  • Accepted : 2012.11.20
  • Published : 2012.11.25
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Abstract

We surveyed and evaluated quantities and distribution characteristics of debris on the sea floor around active fishing grounds around the islands in the southwest coast of Korea in 2007 where the average depth is below 40m. Proper recovery gears mainly to haul the derelict fishing gears are selected considering the sea bed types of the areas. The collected debris amounts were used to estimate the total amount of the surveyed area. The number of hauls per trial times the amount of the debris was extended to whole sampling area and the weighting factor from the opinion was applied to reach the total amount of marine debris on the floor. The amount of the deposited marine debris around Wangdeung-do area is estimated as about 686 $kg/km^2$, and the cost of the collection and treatment for the deposited marine debris is estimated about 3.9 billion KRW after consideration of the proper size of the working ships, labor, transport and treatment cost.

본 연구에서는 2007년도에 주요 연안 어장에서 이루어진 해저침적쓰레기 분포 조사 지역 중 왕등도를 포함한 5개 어장에서의 침적쓰레기 조사 결과와 그 수거처리 비용 추정 결과에 대해 소개한다. 주요 대상 해역의 해저면 특성에 따라 침적쓰레기 인양에 적합한 인양틀의 종류를 선택하여 사용하였으며, 관계자들의 자문을 얻어 설정한 조사 대상 어장 구역에 대하여 인양 조사 횟수와 수거된 총 쓰레기량을 고려한 전체 해저 침적쓰레기량을 추산하였다. 그 결과 왕등도 인근 해역에 대해 약 686 $kg/km^2$의 침적쓰레기량을 구할 수 있었다. 각 구역에서의 쓰레기 추정량에 근거하여 수거 및 운반에 필요한 적정 선단 규모를 가정하고, 처리에 이르기까지 소요되는 장비, 인건비 등 제반 경비를 계산한 결과 왕등도의 경우 총 247톤의 추정 해양 침적쓰레기에 대하여 약 39억원의 수거 및 처리 비용을 도출하였다.

Keywords

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