• Proceedings of the Korean Society of Fisheries Technology Conference
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• 1997.06a
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• pp.95.2-96
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• 1997

• Journal of the Korean Society for Marine Environment & Energy
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• v.5 no.3
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• pp.45-53
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• 2002

This investigation is performed to prepare reducing method drained floating debris from the river This paper is present an investigation result of the marine debris characteristics that drained from korea 4 big river(han river, kum river, youngsan river, nakdong river) during July and August. A mount of floating debris different with rainfall. Short heavy rain like as 150mm/day floating debris drained lower, almost floating debris drained when a flooding cause by continuance heavy rain. Floating debris draining is not continuance, but concentrated on a flooding. All debris is do not drained ocean, a lot of debris accumulated riverside. Floating debris is drained with plant and configuration is similar with other river. But, the component ratio is different, so that, to Prepare removing method for floating debris consider that effect of plant debris.

• Journal of the Korean Society for Marine Environment & Energy
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• v.5 no.3
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• pp.3-9
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• 2002

When a flooding a lot of debris are drained from rivet. Drained debris separated lodgement debris and floating debris, and floating debris moving other region by wind and ocean current. This experimentation throw three buoys which installed with DGPS and other devices in nak-dong river, and check there location every minute. In consequence of this experimentation, floating debris drained nak-dong river are gathered near Dadaepo seaside or drifted Dong hae. Ocean current and wind driven current are largely influenced then tide. Numerical analysis calculated by MAPCNTR(develop by KRISO) is similar to the result of this experimentation.

• Bulletin of the Society of Naval Architects of Korea
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• v.38 no.4
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• pp.50-55
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• 2001

• 한국해양학회지
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• v.28 no.2
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• pp.142-152
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• 1993

해양에 투기된 폐기물의 시공간적인 분포와 변화과정은 해양 물리학적 확산과 이 동, 생물학적 흡수 및 변환과정, 화학적 반응 및 상태변화등 여러 과정이 복합적으로 작용하여 일여난다. 이러한 폐기물의 해양투기가 해양생태계 및 환경보전에 미치는 여 러 가지 영향은 이에 대한 규제 및 적절한 운용을 통하여 원활한 해양생태 및 환경을 유지할 수 있도록 최소화되어야 한다. 해양투기의 최적화를 위하여서는 첫째, 생태학 적 배제원칙(biological exclusion)이 최우선적으로 고려되어야 하고 둘째, 생태계 및 수산자원 보존을 위하여 원활한 해수교환 및 물질확산이 극대화된 투기장소의 입지 선 정(hydrographic option)이 매우 중요하다. 둘째 로는 적법한 투기행위 및 적절한 투 기장 운용을 위한 감독 및 감시체제의 확립이 필요하다. 현재 우리 나라의 해양 폐기 물 투기는 초기의 단계에 있으나 최근 점차 요구되는 인접 해양국가 간의는 지역환경 협의체 구성 및 국가간 환경 부담 비용을 고려할 때 공해상의 해양투기는 더 이상 국 내적 문제가 아니므로 보다 신중한 해양투기 활동 및 타당성의 국토가 필요하다. 황해 에 위치한 투기장의 경우 현재까지의 관련자료를 검토할 때 적정 투기 규모 및 투기장 입지 선정, 그리고 불법 폐기물 투기가능성의 미비점에 대한 보완책이 필요한 것으로 사료된다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2020.11a
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• pp.23-24
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• 2020

커피박을 FeCl₃·6H₂O로 전처리하여 제조한 자성 복합재의 유출유 회수 실험을 진행하였다. 전반적으로 사용하지 않은 디젤엔진 오일이 사용한 디젤엔진 오일보다도 오일 회수율이 높게 나타났고, 수중온도가 5℃일때보다도 25℃일 때 오일 회수량이 더 높게 나타났다. 실험 결과는 모든 온도에서 오일 회수량을 높이기 위해서는 FeCl₃·6H₂O 전처리 용액의 농도가 최소한 0.1 M은 되어야 함을 보여 주었다.

• Journal of the Korean Society for Marine Environment & Energy
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• v.5 no.2
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• pp.62-67
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• 2002

This paper - following 'Development of multi-purpose marine waste cleaning systems for the shallow waters (Part I : preliminary conceptual design)'- describes on the system development and the sea trial performance evaluation(Cho[2003]). The multi-functional seabed waste collecting system and the towing hook system were developed. The maximum working depth of these systems are 15 and 100 meters, respectively(MOMAF[2001]). For the multi-purpose use to collect the marine waste, this system contains floating waste collecting device for the waste on seawater and remained waste collecting device for the waste on seabed, while steel wire cutting system is added for higher efficiency In order to evaluate the system performance, the prototype of multi-functional system was constructed and the sea trial test at shallow water were carried out. As a result, this system operated well with safe and without any interaction so that the developed systems are practicable and applicable.

• Journal of the Korean Society for Marine Environment & Energy
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• v.9 no.4
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• pp.193-202
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• 2006

The Consultative Meeting of the Convention on the Prevention of Marine Pollution by Dumping of Wastes and other matter, 1972 (London Convention 1972) has requested to International Maritime Organization (IMO) Marine Environmental Protection Committee to collaborate and help clarify a boundary issue between International Convention for the Prevention of Pollution from Shops, 1973 as modified by the Protocol of 1978 (MARPOL) and the London Convention concerning 'dumping' versus 'discharges' during normal operations of ships in 2004, and subsequently established a Joint London Convention/MEPC Correspondence Group. The Contracting Parties to London Convention expressed their environmental concerns on the broad interpretation of the "cargo-associated wastes" by the States, which could be discharged by ships under MARPOL. Regulatory regimes for the cargo residues appear to vary among states. Some countries require fur ships to discharge their cargo wastes into the port reception facility and IMO also recommends doing so. This paper examines the related current national and international legal texts for the regulation of disposal of wastes from ships in order to analyze the current global concern on the marine pollution associated with waste discharge during operations of ships. In particular, we attempt to evaluate the likely marine environmental consequences arising from the disposal of cargo residue using an hypothetical case for the coal cargo residue among bulk cargos in this paper, since location, magnitude and frequency of the discharge of coal cargo residues into the sea adjacent to Korean Peninsula are not readily available. The cargo residues may be discharged to the sea according to MARPOL 73/78; however, its marine environmental consequences can be significant depending upon the characteristics and amounts of wastes to be discharged. Also the public tolerance of the environmental consequences would be widely different among nations. Multilateral environmental agreements, in general, more strictly apply their rules if there are other options to disposal at sea, i.e. port reception facility in this case. Therefore, port reception facilities for the wastes generated by ships are recommended to be further constructed in major national ports in order to reduce the risk of environmental damages during the operations of ships.

• 농업기술회보
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• v.50 no.1
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• pp.28-29
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• 2013

매년 감귤 가공량은 감귤 생산량의 20%인 약 12만톤을 차지하고 있으며, 이중 가공부산물이 5~7만톤으로 총 가공량의 약 50%가 발생하고 있다. 부산물 중 약 70%는 사료와 한약재로 재이용되고 있으나, 지난해까지 약 30%가 20억원의 처리비용을 들여 바다에 매립 처리되었다. 그러나 올해부터 런던 협약에 의해 해양투기가 금지되었고 2014년 이후에는 육상폐기물의 해양투기가 전면 금지됨에 따라 시급한 대책이 필요한 실정이다. 이에 국립원예특작과학원에서는 감귤가공부산물을 이용해 기능성 식음료, 바이오겔 등 다양한 제품을 개발했다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.11a
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• pp.11-12
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• 2023

부표관리청에서 부표를 정기적으로 교체·수리하고 있으며 수리가 불가한 등부표는 불용하여 신규로 제작하고 있다. 부표 불용 시 부표의 무게 중심을 잡기 위해 하단부에 설치된 중추는 재활용 가능함에도 재활용에 대한 기준이 없어 모두 폐기되고 있는 실정이다. 이에 중추를 재활용하기 위한 기준을 마련하였고 전량 수입에 의존하는 중추를 민간 부표 제작업체에서는 안정적인 수급이 가능하였고 국가 예산 또한 절감할 수 있는 효과도 기대된다.