• Title/Summary/Keyword: 국립환경과학원

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Applicability of the Energy Recovery in Automotive Shredder Residue (ASR) Recycling Facilities (폐자동차 파쇄잔재물(ASR) 재활용 시설의 에너지 회수효율 적용성 평가)

  • Yoo, Ha Nyoung;Kang, Jun Gu;Kwon, Young Hyun;Ko, Young Jae;Kwon, Jun Hwa;Park, Ho Yeun;Jeon, Tae Wan;Lee, Young Kee
    • Journal of Korea Society of Waste Management
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    • v.35 no.7
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    • pp.660-669
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    • 2018

  • Domestic automotive shredder residue (ASR) recycling facilities must comply with 60% of the energy recovery criteria calculated by the waste control act, based on resource circulation of electrical and electronic equipment and vehicles. The method of calculating energy recovery criteria was newly enacted on November 6, 2017, and it has been judged that it is necessary to consider applicability. In this study, the energy recovery efficiency of 7 units was calculated by past and present calculation methods. Furthermore, this study attempts to find applicability and a method of increasing the energy recovery efficiency by taking advantage of available potentials. An analysis of the calculation results showed that the average values calculated by past methods, present methods, and the method that includes available potentials are 76.35%, 70.68%, and 78.24%, respectively. Therefore, the new calculation method for energy recovery efficiency is also applicable to domestic automotive shredder residue recycling facilities.

  • https://doi.org/10.9786/kswm.2018.35.7.660 인용

A study of asbestos risk at some naturally occurring asbestos areas, Korea (우리나라 일부 자연발생석면 발생가능지역의 석면 위해도에 관한 연구)

  • Jung, Joon Sig;Shim, In Keun;Jung, Hyen Sung;Lee, Kyu Mok;Kim, Seong Mi;Kwon, Myung Hee;Chung, Hyen Mi
    • Journal of odor and indoor environment
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    • v.17 no.4
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    • pp.330-336
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    • 2018

  • The objective of this study was to determine whether crops and fruits absorb the naturally occurring asbestos (NOA). The concentration of asbestos in various crops and fruits grown in NOA areas was analyzed and background levels of asbestos in ambient air and soil samples were assessed. Actinolite/Tremolite asbestos were detected in all soil samples. Among 21 ambient air samples, 2 samples were recorded to contain 0.0005 f/cc (fiber per cubic centimeter) but no asbestos was detected in the other samples using transmission electron microscopy (TEM). However, no evidence suggesting that the crops and fruits could be contaminated by NOA was found in this study. The excess lifetime cancer risks (ELCRs) of ABS scenarios (agricultural activities) used in this study were calculated by using the Arithmetic (AM) and Geometric mean (GM) of ELCRs. The AM and GM of ELCRs estimated from digging soil and weeding activities did not exceed $1{\times}10^{-4}$, which was defined as the general acceptable risk range for exposure. The results of this study would be informative to NOA managers and related policy makers to make plans to prevent unexpected exposure to asbestos to residents living in an NOA area.

  • https://doi.org/10.15250/joie.2018.17.4.330 인용