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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society for Marine Environment & Energy
Journal Basic Information
Journal DOI :
The Korean Society for Marine Environmental Engineering
Editor in Chief :
Volume & Issues
Volume 8, Issue 4 - Nov 2005
Volume 8, Issue 3 - Aug 2005
Volume 8, Issue 2 - May 2005
Volume 8, Issue 1 - Feb 2005
Selecting the target year
Some physical characteristics of Gamak Bay observed in October and November of year 2004
Lee, Moon-Ock ; Kim, Byeong-Kuk ; Park, Sung-Jin ; Kim, Jong-Kyu ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 4, 2005, Pages 165~173
Field observations have been conducted to investigate the physical environment around oyster farms in Gamak Bay. Tidal waves near the two channels at the northeast and south of the bay had almost the same amplitudes and phases. Water temperature responded sensibly to the tides, rising at high water and falling at low water, except for the northwest region. The currents more regularly varied in accordance with a tidal period as long as they are at the faster-flowing region. A considerable flow has been found near the seabed of the northwest of the bay, normally known to be a stagnant area, and also the flow was opposite to the surface flow. Average moving speeds and directions of the flow at each station coincided well with patterns of the residual currents computed by Lee ef al. , except for the northwest region. The discrepancy for the northwest region is not clear but it may have resulted from the facts that the computed flow pattern represents only the case of spring tide and in addition, a northwesterly wind prevailed all the observation time.
Development of Ballast Water Treatment Technology (Feasibility Study of NaOCl Produced by Electrolysis)
Yoon, B.S. ; Rho, J.H. ; Kim, K.I. ; Park, K.S. ; Kim, H.R. ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 4, 2005, Pages 174~178
Destruction of marine ecology system induced by the bal last water discharged from ships is one of the most serious problem among the various ship associated environmental impacts. International Maritime Organization (IMO) has actively dealt with this problem for a long time and is going to start to activate very strong international treatment for preventing ocean from such serious environmental impact. Various technologies of ballast water treatment are now being developed all over the world. In this paper, recent trend of existing ballast water treatment technologies is investigated in detail. Furthermore, in order to apply electrolysis technology to ballast wale r treatment, its basic principle is reviewed theoretically and its feasibility is checked through some in-situ experiments. Quite good results are shown in the experiments enough to confirm its applicability in ballast water treatment.
Condition of ex situ Bioremediation of Polycyclic Aromatic Hydrocarbons in Marine Sediments
Jung, Hong-Bae ; Yun, Tian ; Lee, Hee-Soon ; Kwon, Kae-Kyoung ; Kim, Sang-Jin ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 4, 2005, Pages 179~185
Polycyclic aromatic hydrocarbons (PAHs) are a kind of toxic environmental pollutants and has been accumulated usually in marine sediments. Due to their potential hazardous to human, removal of PAHs from environments has been great concern. In the present study, the effect of microbial inoculation and the supplementation of mixed form cyclodextrin (M-CD) was assessed in the pre-sterilized or nonsterilized microcosms for optimizing operational conditions for ex situ bioremediation of sediments contaminated by PAHs. Activity of electron transport system (ETSA) was increased by the addition of M-CD regardless of inoculation of microorganisms in microcosms without sterilization. The degradation rate of PAHs in sterilized microcosms was app. 9-20% by the inoculation of single strain and 24-37% by the inoculation of microbial consortium supplemented with 1% M-CD, respectively. The degradation was not observed in microcosms without sterilization under the same conditions. The proportion of inoculated microorganisms also decreased in nonsterilized microcosms. Signals of inoculated bacteria were decreased to detection limit after 2 days in the microcosms without M-CD. In conclusion, microbial inoculation with appropriate carbon sources and removal of natural flora and grazers are required for the efficient ex situ bioremediation of sediments contaminated by PAHs in bioslurry reactor.
Numerical Simulation for Net-water Flux of the Cross-sectional area in the Nakdong River Estuary
Yoon, Han-Sam ; Lee, In-Cheol ; Ryu, Cheong-Ro ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 4, 2005, Pages 186~192
We investigated the deposition characteristics and mass transport flux estimation of the Nakdong estuary, Korea. To understand the effects of the tidal current circulation that influences estuary terrain changes, we used a 2D numerical model to map seawater circulation under three different situations, with the level of river flow being set as none or flood. The net-water flux of the cross-sectional area between sandbars (known as dung) was estimated. From our review of previous research, we know that the development of local sandbars shifted from the west to the east side of the estuary after the construction of the Nakdong River dike. Current development is occurring mostly at the Bakhap-dung near Tadea. The seawater circulation pattern over this large-scale area of tidal na is brings changes related to the quantity of the outflow from the Nakdong River. Based on the calculated results for the net-water flux of the cross-sectional area, we see very strong accumulation in local waters around Jangjiado, Bakhapdung, and Tadae under flood river flow conditions, but accumulation in local waters around Jinudo under the other states of flow. Consequently, in the Nakdong estuary, the main sensitive regions that are affected by changes in the flow of river discharge are the local waters around Jangiado, Bakhapdung, Tadae, and Jinudo.
Development of the Risk Assessment Systems for Management of Sunken Ships
Choi, H.J. ; Lew, J.M. ; Kim, H. ; Lee, S.H. ; Kang, C.G. ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 4, 2005, Pages 193~202
Marine risk assessment considers events such as collision/grounding, sinking/capsize, fire/explosion and flooding, developing relationships between their causes and effects. In addition, risk assessment of previously sunken ships are also necessary since they continuously have possibility for further oil spill or can cause other marine accidents. The objective of this paper is to develop the risk assessment systems for sunken ships to prevent oil spill and further marine causalities in order to preserve safe and clean oceans around Korea peninsula. The risk assessment systems for sunken ships comprise of database management sub-system for sunken ships, qualitative risk assessment sub-system, quantitative risk assessment sub-system, and cost-benefit analysis subsystem.
] Sequestration in Geological Structures in the Maritime Area: A Preliminary Review
Hong, Gi-Hoon ; Park, Chan-Ho ; Kim, Han-Joon ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 4, 2005, Pages 203~212
Anthropogenic emissions of greenhouse gases, particularly carbon dioxide(
) which arises mainly as wastes from the fossil fuel burning processes, are causing global warming. The effects of global warming become increasingly felt all over the world including sea level rise and extreme weather. The more direct consequences of the elevated atmospheric
on the ocean is the acidification of the surface ocean which brings a far reaching adverse impact on the life at sea and probably on the whole ecosystem of the planet. Improvement in energy efficiency and use of alternative energy sources are being made to reduce
emissions. However, a rapid transition to alternatives seems unachievable within a few decades due to the constraints on the associated technology and socio-economic factors in the world, since fossil fuels make up approximately 85% of the world's commercial energy demands. It has now been recognized that capture and geological sequestration of
could significantly reduce its emissions from fossil fuel utilization and therefore provides the means to rapidly achieve large reductions in
emissions(excerpts from London Convention, LC/SG 28, 2005). In Korea, well-developed sedimentary basins are spread over the vast continental shelf and slope regions, whereas, the land is densely populated and limited in area. Consequently, the offshore area is preferred to the land for the sites for geological sequestration. The utilization of the offshore area, however, may be subject to international agreements including London Convention. In this paper, the recent trends in technologies and regulations for
capture and geological sequestration are described to encourage its applications in Korea.
Quantitative Assessment of Micropollutants in the Southern Coastal Waters of Korea
Han, Sang-Kuk ; Park, Ji-Young ; Lee, Jong-Sam ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 4, 2005, Pages 213~219
In this study, we try to Quantitatively assess the micropollutants in Gwangyang bay, Gamag bay and Yeoa bay, using simultaneous analytical method fir 310 chemicals. In the results, several dozen organic pollutants were detected in sampling sites, and the major chemicals detected were CH type chemicals, such as aliphatic and polycyclic compounds, and CHN(O) type chemicals, such as aromatic ammines and nitro compounds. The concentration of organic pollutants was higher in summer than in winter. However, there was no association of species of organic pollutants with season. The total concentration of pesticides at each sampling site was measured within the range of
. Insecticides and fungicides of pesticide type were detected in Gwangyang bay and Gamag bay, while six kinds of endocrine disrupter were detected in southern coastal waters. From the results of this study, we should estimated that the insecticides, the fungicides, and a few of the endocrine disrupters are major pollutant factors in southern coastal waters.
Characteristics of Marine Litters Distribution on the Sea-bed of the East China Sea
Jeong, Sun-Beom ; Lee, Dae-In ; Cho, Hyeon-Seo ; Kim, Young-Joo ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 4, 2005, Pages 220~226
This study evaluated the composition and distribution of marine litters on the sea-bed of the East China Sea. Surveys have been conducted by a benthic trawlnet of Dong-baek training ship of Yosu national university during the cruise of 2002-2004. Distribution density showed high value in C5 (north-western area of Jeju Island) with
and those of annual mean were about
. Fishing gears such as nets, pots, octopus jars and etc. were about 42-72% of debris collected in the East China Sea. Composition ratio of rubber, vinyl. metal, plastic, glass, wood, cloth and etc. were within 25% except C5. Rope and drum showed strong fluctuations with 0-30% according to the trawling sites. Some vinyls and nets made in Korea, China and Japan were much collected. It is estimated that fishing gears were discarded to the sea by fishing operation, deliberately or not. An comprehensive program including continuous research, monitoring for marine litters in the Korean sea were necessary.
Management Policy Directions for Sustainable Management of the Uninhabited Islands of Korea
Nam, Jung-Ho ; Kang, Dae-Seok ;
Journal of the Korean Society for Marine Environment & Energy, volume 8, issue 4, 2005, Pages 227~235
This study aimed at suggesting management policy directions for the uninhabited islands of Korea which are national land resources with economic potential for tourism and development and strategic value for boundary delineation of territorial waters and exclusive economic zone as well as their unique ecological status. Review of existing management arrangements related to the uninhabited islands revealed six management issues to be addressed: insufficient data and their low reliability, lack of management policy directions, increase in ecosystem deterioration and perturbation by human activities, lack of policy measures for meeting utilization and development demands, weak management base with insufficient personnel and budget, and legal measures not taking Into account their unique ecological and socioeconomic characteristics. The management policy directions to improve the management of the uninhabited islands of Korea include management directions and strategies, and suggestions for legal improvement. Considering the unique ecological value of the uninhabited islands, management directions suggested are anti-degradation in which current and future demands for their utilization and development do not degrade the ecological potential of the uninhabited islands and integration in which land and sea areas are managed as an integrated management unit. Four strategies proposed to follow the management directions are enhancement of the knowledge base through a comprehensive survey, development and legislation of guidelines for the rational management of utilization and development demands, establishment of the comprehensive island debris collection and disposal system, and enhancement of management capacity. Legal improvement for the effective implementation of the management policy directions should include comprehensive uninhabited islands survey, legal utilization restraints and management guidelines based on classification of the islands, management boundary, and improvement of regulations on designated islands.