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A Study on the Public Service Incorporation -Focused on the Mud Management Industry Official in Boryeong City Hall- (공공서비스의 법인화에 관한 연구 -보령시 머드사업소를 중심으로-)

  • Byeon, Yeong-Deok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.7
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    • pp.2444-2450
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    • 2010
  • This paper is aimed at surveying the method that supports logical and theoretical back grounds of the public service incorporation, to compare and analyze the existing systems of knowledge and to find out any problems which may cause while incorporating "Mud Management Industry Official in Boryeong City Hall(MMIO)", ultimately coming out with systematical answers to them. The major findings of this study can be summarized as follows. First, the goods MMIO produces and supplies belong to public service. Second, it is desirable for a MMIO to take the form of public enterprise or public utility, harmonizing entrepreneurship with publicness and locality. Third, the most desirable system of management for the incorporated MMIO seems to be indirect one. Fourth, This study also presents the ways of complementing or overcoming every problem caused when we choose, as the management control system.

해양치유자원의 활용을 위한 채취 및 가공 처리 방법

  • Choe, Jae-Ho;Kim, Chung-Gon
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2018.11a
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    • pp.294-296
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    • 2018
  • 해양치유산업 활성화 방안으로 4개 지자체 (태안, 완도, 고성, 울진)의 대표 해양치유자원인 모아, 머드, 해조류, 염지하수의 활용을 위한 채취 및 가공처리 방법에 대해서 연구하였다.

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Characteristics and Standards of Domestic Tidal Flat Mud Marine Healing Resources (국내 갯벌머드 해양치유자원의 특성 및 기준에 관한 연구)

  • Seonyoung Park;Jeongwon Kang;Yonggi Jeong;Yeonje Cho
    • Journal of Wetlands Research
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    • v.25 no.4
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    • pp.386-393
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    • 2023
  • The domestic marine healing industry is undergoing significant revitalization efforts, with a focus on understanding the efficacy and effectiveness of marine healing resources. This study establishes utilization and management standards through a detailed analysis of the active components within well-recognized marine healing mud materials. Samples of mud materials were collected from domestic tidal flats. These samples exhibited an average composition of 7.87% sand, 74.95% silt, and 17.17% clay, with a combined mud content (silt+clay)(silt+clay) consistently exceeding 90%. Notably, SiO2 emerged as the most prevalent effective ingredient at 68.4%, followed by Al2O3 (13.3%)>Fe2O3 (4.0%)>K2O (2.9%)>Na2O (2.3%)>MgO (1.6%)>CaO (1.0%)>TiO2 (0.7%), in terms of average content. Subsequently, through an analysis of effective ingredients, Si, Al, Fe, K, Na, Mg, and Ca were identified as elements demonstrating significant functionality. Among these, key indicator ingredients were selected for quality control, all of which were found to possess efficacious properties. Notably, K, Mg, and Ca exhibited particularly high concentrations. Based on these findings and referencing existing literature, it is recommended that domestic tidal flat mud resources earmarked for utilization as marine healing resources should possess a raw material mud content of no less than 70.0%. Moreover, the cumulative index components K2O+MgO+CaO should meet or exceed a threshold of 5.0% for optimal effectiveness.

Strength Development of Dry-Mixed Earthen Concrete Incorporating Red Mud and Recycled Asphalt Concrete Aggregates (폐아스콘 순환골재를 활용한 레드머드 혼입 건식 흙콘크리트의 강도 발현 특성)

  • Kang, Suk-Pyo;Park, Kyu-Eun;Kim, Sang-Jin
    • Journal of the Korea Institute of Building Construction
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    • v.24 no.4
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    • pp.403-411
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    • 2024
  • This study investigated the use of recycled aggregate from waste asphalt concrete in dry soil concrete mixed with red mud. The results showed that dry soil concrete utilizing waste asphalt recycled aggregate had relatively lower compressive strength compared to that using crushed aggregate. However, dry soil concrete mixed with red mud using waste asphalt recycled aggregate achieved a compressive strength of over 18.0MPa, meeting the highest performance standard for parking lot use, when the cement content was more than 250kg/m3.

Evaluation of Dispersion Characteristics for Liquefied Red Mud by Viscosity and Sediment Index (점도 및 침전지수에 의한 액상화 레드머드의 분산 특성평가)

  • Kang, Suk-Pyo;Kang, Hye-Ju
    • Journal of the Korea Institute of Building Construction
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    • v.17 no.6
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    • pp.517-525
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    • 2017
  • Red mud is an industrial by-product produced during the manufacturing aluminum hydroxide ($Al(OH)_3$) and aluminum oxide($Al_2O_3$) from Bauxite ores. In Korea, approximately 2 tons of red mud in a sludge form with 50% moisture content is produced when 1ton of $Al_2O_3$ is produced through the Bayer process. In the paper, dispersion characteristics of liquefied red mud that does not require heating and grinding process for recycling were investigated through viscosity and sediment index. The results showed that the sediment index of liquefied red mud increased but viscosity of that decreased with a higher W/R ratio. Also we proposed the range of initial viscosity from 2000cP to 8000cP and target sedimentation index below 20% at elapsed time 180days for stable dispersion of liquefied red mud.

The Mud-based Cosmetic Business by the City of Boryeong in Korea as the Commodification of a Locality's Endowment or Assets for Local Development (지역발전을 위한 향토자원 상품화의 사례로서 보령시 머드화장품 사업에 대한 고찰)

  • Byun, Pill-Sung
    • Journal of the Economic Geographical Society of Korea
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    • v.9 no.1
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    • pp.7-22
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    • 2006
  • This study examines the mud-based cosmetic business by the City of Boryeong, as a case of commodifying a locality's endowment or assets for local development. Concretely, the study discusses current status, history, and challenges of the business, which is an integral component of the key industry Boryeong seeks to promote by using mud materials. The discussion also encompasses the factors behind the development of the business. From the discussion, my work presents the business‘s implications for the commodification of local endowment/assets and promotion of relevant key industries that not a few localities across Korea pursue for their development. I deal with such implications, primarily in terms of the local institutional capacity that induces the consistent participation and cooperation from a wide variety of stake-holder as well as the shared vision among such stake-holders in order to enable a locality to effectively use its endowments/assets for local development. And this work reiterates that the institutional capacity which is significant for local development has to be analyzed in depth and such an analysis should produce codified knowledge which can function as guidances or manuals for many localities.

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A Laboratory Study on Rheological Properties of Fluid Mud (머드유동층의 유동학적 특성에 관한 실험적 연구)

  • Nguyen, Dinh Phuc;Jung, Eui-Taek;Park, Kun-Chul;Hwang, Kyu-Nam
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.24 no.3
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    • pp.203-209
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    • 2012
  • In this study, rheological properties of kaolinite and three different porcelain fluid muds are quantitatively estimated with the latest rheometer, in which variations of their viscosities and yield stresses with their densities are estimated. This study also involves the measurements for the basic physico-chemical properties of fluid muds and the qualitative analysis of their correlation between physico-chemical and rheological properties. Experimental results of rheological tests show that fluid muds in general belong to Pseudo-plastic fluids and both viscosities and yield stresses of them increase exponentially with the increase of density while they are remarkably different in quantity depending on sediments.

A study on the Present Status and Utilization Plan of Marine Healing Resources for Revitalization of Marine Healing Industry (해양치유산업 활성화를 위한 해양치유자원의 현황 및 활용방안 연구)

  • Kim, Choong-Gon;Oh, Ji-Na;Cho, Jae-Ho
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2018.05a
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    • pp.17-18
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    • 2018
  • 19세기 이전부터 유럽에서는 해양치유자원을 이용한 치유요법인 탈라소테라피(Thalassotherapy)가 국민들의 건강을 지켜오고 있다. 탈라소테라피(Thalassotherapy)란 바다를 뜻하는 그리스어 'Thalassa'와 치료를 뜻하는 'Therapy'가 합쳐진 말로 해양치유자원을 이용해 신체적 정신적 건강을 증진시키는 활동을 뜻한다. 최근 우리나라에도 건강한 삶을 추구하는 인식의 변화 속에 다양한 해양치유자원을 이용하는 해양치유의 수요가 증가하고 있다. 본 논문에서는 해양치유산업의 활성화를 위한 해양치유자원의 현황 및 활용방안에 대해 연구하였다. 우리나라 해양치유자원의 분포를 확인하기 위해 동해, 서해, 남해, 제주도 등 4개의 권역으로 구분하여 전국을 대상으로 총괄도를 제작하였으며 국내외 해양치유자원을 이용해 작성된 문헌을 통해 해양치유자원의 이용현황에 대해 조사하였다. 또한 해양치유산업 선진국인 독일, 프랑스, 일본을 모델로 우리나라에 맞는 해양치유자원 적합기준을 연구하였다. 그 결과, 각 지역별 해양치유자원은 경기도:(머드, 염생식물, 염지하수, 해조류), 충청남도:(머드, 해조류, 천일염, 해조류), 전라북도:(머드, 염생식물, 해조류 해풍), 전라남도:(해조류, 해수, 천일염, 머드 해풍), 제주도:(용암해수, 염지하수, 태양광, 해수욕장), 강원도:(심층수, 태양광, 해조류, 해송림), 경상남도:(해조류, 해수욕장, 태양광, 해풍), 경상북도:(해조류, 태양광, 심층수, 염지하수, 해송림), 울산:(해조류, 태양광), 부산 :(해조류, 해수욕장, 태양광)이 있었으며 해양치유 자원을 이용해 작성된 국내외 논문은 265편(해수:101편, 머드:27편, 소금:12편, 해양환경:39편, 해양생물:18편, 해조류:68편)이 있었다. 해양치유자원 적합기준은 각 나라별 해양치유자원의 이용기준을 활용하여 자원별로 제시하였다.

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