• Title/Summary/Keyword: Urban Resources

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Current Status of Pyrometallurgical Process for the Reclamation of Urban Ore (도시광석(都市鑛石) 재자원화(再資源化)를 위한 건식공정(乾式工程)의 현황(現況))

  • Kim, Byung-Su;Lee, Jae-Chun;Shin, Do-Yeoun;Jeoung, Jin-Ki;Rhee, Kang-In;Sohn, Jeong-Soo;Yang, Dong-Hyo;Kim, Min-Seuk;Kim, Soo-Kyung
    • Resources Recycling
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    • v.21 no.2
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    • pp.3-8
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    • 2012
  • In the points of the environmental conservation and the recirculating utilization of limited resources, it is very important to recover valuable metals like Au, Ag, Pd, Cu, Sn, Ni, Co, and Li used as industrial raw materials from urban ores. From now, many processes have been developed for recovering the valuable metals contained in urban ores and some of them have been operated commercially. In the paper, pyrometallurgical processes developed for reclaiming valuable metals from urban ores will be briefly introduced.

Development of an urban forest management system based on information of topography, soil and forest type (지형, 토양 및 임상정보에 기초한 도시림 관리시스템 개발)

  • Lee, Woo-Kyun;Son, Yo-Whan;Song, Chul-Chul;Chung, Kee-Hyun;Kim, Yoon-Kyoung;Ryu, Soung-Ryoul;Kim, Hyun-Sup
    • Journal of Environmental Impact Assessment
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    • v.8 no.3
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    • pp.61-76
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    • 1999
  • For the effective management of urban forest, a variety of informations on urban forest needs to be accurately measured and effectively used in decision-making processes. This study aims at developing an urban forest management system with reference to GIS and making it possible to effectively manage urban forests. A detailed forest type map were constructed with the help of aerial photograph and terrestrial inventory. A geographical map in terms of slope, aspect and altitude were also prepared by Digital Elevation Model(DEM). A soil type map containing chemical characteristics were also made through soil analysis. These thematic maps which contain informations on forest type, geography and soil were digitalized with reference to GIS, and an urban forest management system of user interface were developed. With the help of this urban forest management system, various spatial and attribute informations which need for urban forest management could be easily used in decision-making processes in relation to urban forest.

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The Effects of Local Cultural and Sports Resources on Urban Growth (지역 내 문화체육자원이 도시성장에 미치는 영향 연구)

  • Kwak, JungHyun;Seo, Wonseok
    • The Journal of the Korea Contents Association
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    • v.16 no.6
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    • pp.706-716
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    • 2016
  • This study aims at finding impact of cultural and sports characteristics on urban growth. For the empirical analysis, this study uses unique urban resources associated with four categories (Social, Traffic, Cultural and Sports, and Spatial characteristics) among 228 cities and towns using a semi-log multiple regression analysis. The result shows that various local resources have significant impacts on urban growth in terms of population, industry, and fiscal self-reliance ratio. Impressively, cultural and sports resources are relatively beneficial for the urban growth. For the population and industrial growth, expanding public sports facilities and professional sports facilities can be more efficient. For solid local finance, typically focusing on professional sports facilities that have far-reaching ripple effects are useful. The conclusion for this study shows that urban growth policy should prioritize the cultural and sports resources because it can be more effective way to enhance not only for urban growth but also for quality of citizens' life.

도심지역 지하수관리를 위한 지하수환경 모니터링

  • 이진용;최미정;이명재;이강근
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2002.09a
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    • pp.277-279
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    • 2002
  • In late of the 1980's, dramatic increase in water use caused over-exploitation of groundwater and deterioration of water quality in urban areas. To monitor quantity of groundwater resources and their qualities, local groundwater monitoring networks were established. Groundwater resources in urban areas are affected by various human activities including underground building construction (subway), pumping for water use, and pavements. Detailed analysis of the monitored groundwater data would provide some good implications for optimal and efficient management for groundwater resources in the urban area.

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Necessity and Background of the Metal Recycling from Urban Mine Resources (도시광산(都市鑛山)(사용후제품(使用後製品)) 재자원화(再資源化)의 필요성(必要性)과 배경(背景))

  • Oh, Jae-Hyun;Kim, Joon-Soo;Moon, Suk-Min;Min, Ji-Won
    • Resources Recycling
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    • v.19 no.5
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    • pp.13-24
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    • 2010
  • To investigate the necessity and background of the metal recycling from urban mine resources, 4 bigger problems such as the limitation of the underground resources, consumption of the metal resources, contamination of environment and metal recycling business were reviewed. Waste management and recycling are the foremost issues facing Korea on its path to sustainable development in the 21st century. Especially, metal recycling from urban mines is the most urgent fact for global environment and resources conservation. In order to build a recycling-oriented society, it is necessary to develop the recycling technology, recycling practices and a recycling-oriented economic system.

Satellite monitoring of land and vegetation and its potential application in urban sustainability

  • Feng, Xue-zhi;Ramadan, Elnazir
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.78-81
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    • 2003
  • The present study illustrates a method for monitoring the urban vegetation around Shaoxing city, Monitoring spatiotemporal changes in urban areas will become increasingly important as the number and proportion of urban residents continues to increase. The synoptic view of urban land cover provided by satellite and airborne sensors is an important complement to in situ measurements of physical, environmental and socioeconomic variables in urban settings. The results obtained have revealed a notable change in the vegetation cover in and around the City premises. In this study, we discussed methodology for measurement of urban vegetation and vegetation distributions based on band ratioing in Shaoxing city using Land sat TM imageries. A systematic analysis of the spatiotemporal dynamics of vegetation in urban areas is required to ensure a healthy sustainable environment.

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The Current Status of Cyanide Uses, Regulations, and Treatment in Gold Mining (금 제련에 사용되는 시안의 사용, 규제 및 처리 현황)

  • Park, Jeonghyun;Shin, Doyun;Park, Hyunsik;Jeong, Jinki;Lee, Jae-chun
    • Resources Recycling
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    • v.24 no.4
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    • pp.61-66
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    • 2015
  • Cyanidation has been used worldwide to recover gold from primary ore or concentrate. The use of cyanide is however becoming an emerging issue because of the toxic residue and wastewater made from the process. The cyanide-containing wastewater should be treated properly, obeying the environmental standard and regulations. In the present article, the domestic and international uses, regulations, and treatment technologies of cyanide in gold mining were investigated as a feasibility study to develop a cyanide treatment process as well as the cyanidation process. A biological cyanide treatment process to develop a zeroemission gold recovery and wastewater treatment process was also briefly introduced.