• Title/Summary/Keyword: technology and environment

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Current Status and Research Trend of the Green Technology for Atmospheric Environment (대기환경 개선을 위한 녹색기술 현황과 연구동향)

  • Kim, Daekeun;Park, Sung-Kyu;Jeon, Eui Chan
    • Journal of Korean Society for Atmospheric Environment
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    • v.29 no.5
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    • pp.574-580
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    • 2013
  • Green technology encompasses a growing group of methods and materials, from techniques for generating energy and alternative resources to non-toxic cleaning products. Green technology is expected to solve current problems in atmospheric environment such as climate changes due to green house gases and hazardous air pollutants. This paper provides a review on the status of green technology and policy guidelines in Korea as well as the green technology for air pollutants. It presents the R&D projects and future direction in atmospheric environment, and the green technology in mobile source air pollution. Emerging green technology contributes to sustainable growth and development of atmospheric environmental industry for better air quality.

Characteristics of Vitrification Process and Vitrified Form for Radioactive Waste (방사성폐기물 유리화 공정 및 유리고화체 특성)

  • Kim, Cheon-Woo;Kim, Ji-Yean;ChoI, Jong-Rak;Ji, Pyung-Kook;Park, Jong-Kil;Shin, Sang-Woon;Ha, Jong-Hyun;Song, Myung-Jae
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.2 no.3
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    • pp.175-180
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    • 2004
  • In order to vitrify the combustible dry active waste (DAW) generated from Korean Nuclear Power Plants, a glass formulation development based on waste composition was performed. A borosilicate glass, DG-2, was formulated to vitrify the DAW in an induction cold crucible melter (CCM). The processability, product performance, and volume reduction effect of the candidate glass were evaluated using a computer code and were measured experimentally in the laboratory and CCM. The glass viscosity and electrical conductivity as the process parameters were in the desired ranges. Start-up and maintaining glass melt of the candidate glass were favorable in the CCM. The product of the glass product such as chemical durability, phase stability, and density was satisfactory. The vitrification process using the candidate glass was also evaluated assuming that it was operated as economically as possible.

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