• 산업경영시스템학회지
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• 제35권3호
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• pp.192-203
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• 2012

As a leading nation of ubiquitous technology, South Korea has been promoting u-City pilot projects throughout the country. According to 'Fundamental Construction Law of u-City,' u-City projects are classified into old-town and new-town types. However, most projects have focused only on the new-town type. Pushing forward large-scale land development projects, Korea Land and Housing Corporation (LH Co.) under Ministry of Land Transport and Maritime Affairs (MLTM) has gained a development profit out of the u-City infrastructure and then donated the infrastructure to a local government without making any plan for operations. In the process of u-City pilot projects, old-towns have been relatively ignored and various of unexpected problems have emerged. Building the u-City of an old-town is not easy due to many constraints such as huge initial investment, long validity and verification procedures, lack of useful services for citizens, lack of professional outsourcing methods for business promotion, high operating costs of the integrated control center, inadequate law related, insufficient institutional requirements and so on. This paper introduces a case study on u-City development for an old-town, Ansan City, as a private investment project. The case will help boost u-City projects for old-towns by solving their problems and providing an effective operational mechanism. As the first BTL (Build-Transfer-Lease) project for constructing u-City, 'Broadband Information Network Development Project' of Ansan City will provide a reference model of expanding u-City projects for other cities.

• 상하수도학회지
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• 제29권4호
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• pp.511-517
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• 2015

Korea's modern waterworks began with construction of DDukdo water treatment plant in 1908 and has been growing rapidly along with the country's economic development. As a result, water supply rates have reached 98.5% based on 2013. Despite multilateral efforts for high-quality water supply, such as introduction of advanced water treatment process, expansion of waterworks infrastructure and so on, distrust for drinking tap water has been continuing and domestic consumption rate of tap water is in around 5% level and extremely poor comparing to advanced countries such as the United States(56%), Japan(52%), etc. Recently, the water management has been facing the new phase due to water environmental degradation caused by climate change, aging facilities, etc. Therefore, K-water has converted water management paradigm from the "clean and safe water" to the "healthy water" and been pushing the Smart Water City(SWC) Pilot Project in order to develop and spread new water supply models for consumers to believe and drink tap water through systematic water quality and quantity management combining ICT in the whole water supply process. The SWC pilot projects in Pa-ju city and Go-ryeong county were an opportunity to check the likelihood of the "smart water management" as the answer to future water management. It is needed to examine the necessity of smart water management introduction and nationwide SWC expansion in order to improve water welfare for people and resolve domestic & foreign water problems.

• 한국건설관리학회논문집
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• 제23권3호
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• pp.116-127
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• 2022

최근 전세계적으로 4차산업혁명 기반 스마트시티 시장이 급격히 확대되고 있으며, 스마트시티는 각국의 경제수준 및 도시환경에 따라 다양하게 추진되고 있다. 우리나라는 그동안 공공주도의 플랫폼 확산과 더불어 민간의 혁신적인 서비스 접목을 통한 민간의 적극적인 참여를 위한 다양한 유형의 스마트시티 민관합동사업을 추진하고 있다. 그러나 법령 제·개정 미비, 공공 중심의 발주방식 및 민간의 수행역량 부족 등으로 인해 스마트시티 민관합동사업 활성화에는 한계가 있었다. 이에 본 연구에서는 스마트시티 민관합동사업 활성화를 위하여, 스마트시티 국가시범도시 발주현황을 분석하고 선행연구 분석을 통하여 스마트시티 민관합동사업의 사업추진 단계별 핵심성공요인을 제시하고자 한다. 이를 통해 국내 스마트시티 민관합동사업에서 발생 가능한 다양한 유형의 리스크에 대응하고 스마트시티 민관합동사업을 활성화하는데 기여할 수 있을 것으로 기대한다.

• 한국통신학회:학술대회논문집
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• 한국통신학회 2004년도 하계종합학술발표회논문초록집
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• pp.412-412
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• 2004

• Spatial Information Research
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• 제10권1호
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• pp.123-138
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• 2002

폐탄광 지역에서의 광해문제 해결과 재개발 및 경제활성화를 위해서 폐탄광 관련정보들을 체계적으로 관리 ·분석하는 폐탄광GIS의 구축이 요구되고 있다 국내외 사례분석을 통하여 기본개념을 구상했으며, 이를 바탕으로 삼척시 고사리 지역을 대상으로 시범시스템을 구축하였다. 시범시스템 구축을 통해 가장 합리적인 구축방법을 도출하고, 시범시스템 과정에서 도출된 문제점을 분석하여 항후 폐탄광GIS 구축사업의 향후 추진방안과 일정을 제시하였다.

• Journal of Electrochemical Science and Technology
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• 제12권1호
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• pp.21-32
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• 2021

This study reports for the first time the application of electrocoagulation (EC) from laboratory to pilot scales for the treatment of printing wastewater, a hazardous waste whose treatment and disposal are strictly regulated. The wastewater was taken from three real printing companies with strongly varying characteristics. The treatment process was performed in the laboratory for operational optimization and then applied in the pilot scale. The weight loss of the electrode and the generation of sludge at both scales were compared. The results show that the raw wastewater should be diluted before EC treatment if its COD is higher than about 10,000 mg/L. Pilot scale removal efficiencies of COD and color were slightly lower compared to those obtained from the laboratory scale. At pilot scale, the effluent CODs removal efficiency was 81.9 - 88.9% (final concentration of 448 - 992 mg/L) and color removal efficiency was 95.8 - 98.6% (final level of 89 - 202 Pt-Co) which proved the feasibility of EC treatment as an effective pre-treatment method for printing wastewater as well as other high colored and hard-biodegradable wastewaters.

• 한국주거학회논문집
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• 제22권4호
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• pp.103-112
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• 2011

The purpose of this study was to determine the incomplete aspects of the government pilot project 'Livable City Making' Also, the study was conducted to consider a plan that residents will satisfy for the realization of the project. The study used a case study and a survey method in research process. For the case study, two projects in Busan that have similar planning were chosen. The contents of the survey included the residents' interest in their housing area, their recognition and opinions of the pilot project, their satisfaction about the environmental alterations, and their thought about conditions of sustainable housing. The main results of this study were as follows. First, the residents were satisfied with the alteration of the street space and the provision of green and open spaces. Meanwhile they revealed that the preservation of the natural environment and the vitalization of community are insufficient. Second, they also believed that the construction of the pedestrian streets, the provision of parking lots, and the remodeling of the deteriorated buildings are incomplete. Third, the residents believed that the following provisions need to be made for successful sustainable housing waste discharge needs to be minimized, facilities need to be used for saving energy, opportunities for employment need to be provided within their housing areas, and safe street spaces and comfortable traffic systems need to be provided.

• 상하수도학회지
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• 제25권6호
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• pp.989-994
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• 2011

Nitrate contamination of groundwater is a common problem throughout intensive agriculture areas (non-point source pollution). Current processes (e.g. ion exchange and membrane separation) for nitrate removal have various disadvantages. The objective of this study was to evaluate electrochemical method such as electroreduction using bipolar ZVI packed bed electrolytic cell to remove nitrate from groundwater at field pilot. In addition ammonia stripping tower continuously removed up to 77.0% of ammonia. Bipolar ZVI packed bed electrolytic cell also removed E.coli. In the field pilot experiment for groundwater in 'I' city (average nitrate 30~35 mg N/L, pH 6.4), maximum 99.9% removal of nitrate was achieved in the applied 600 V.

• KIEAE Journal
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• 제11권5호
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• pp.3-12
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• 2011

Industrialization and development of technology satisfied various humanly needs and lay the basis of numerous benefit and profit. New technologies like these mostly required large amounts of fossil Fuel, Fossil energy depletion rate was increasing rapidly. However, technical development for Human race required absolute sacrifice of the environment. Especially, 'City' which had been focused as stage of human activities, allowed to continue to have fossil energy dependent activities, and it shows in many data that the city is responsible for the 75-80% of the green house gas by human. In order to solve the problem relating climate changes and energy, European countries already made progress studies on many of the low carbon green city and pilot case construction. Especially, Germany, Austria, Holland, Sweden who had been playing leader role on environmental awareness and ecological concept, are actively constructing low carbon green city project based on Ecological city planning scheme. These projects positively utilize planning scheme that limits carbon emission using Urban Metabolism concept. Therefore, throughout this study, I would like to present planning and direction of future domestic low carbon green city by analyzing theories relative theories and best practices in Europe.

• Journal of Korean Society for Atmospheric Environment
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• 제11권E호
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• pp.13-21
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• 1995

This Pilot study identifies potential dioxin and furan sources and medical plastic wastes produced from hospital solid waste streams. In this study, air emissions of dioxins and furans from sources in the U.S., which were estimated by the U.S. Environmental Protection Agency (EPA), were summarized. Potential loading routes of dioxins and furans to the U.S.-Canada Great Lakes region have also been identified in trcent surveys. In addition, medical and hospital solid wastes produced in typical large city hospitals were characterized as important potential sources of dioxins and furans. Plastic contents in medical Plastics Characterization Survey (MMPCS), plastics composition data were obtained from a survey of five Massachusetts Hospitals and Medical Centers. By identifying plastic wastes as a percentage of total hospital wastes, we were able to use data from a preliminary study that analyzed the waste stream of 16 major New York City hospitals (NYCMWS) characterizing the plastic content of the wasters. This study determined the types of plastic wastes included in each medical waste stream (regulated medical waste or non regulated medical waste) and it discussed the potential for recyclibility of hospital plastic wastes. The combination of the NYCMWS and the MMPCS surveys provides for the first overview of the size of the recycling task of hospital plastic wastes and the potential of dioxin elimination if dioxin generating plastics were to be eliminated from hospital use.