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폐 메탈할라이드 램프의 수은 무해화처리를 위한 단계적 파쇄
성진호,김정훈,백승기,이은송,이주찬,문경림,박용준,서용칠 한국폐기물자원순환학회 2017 한국폐기물자원순환학회지 Vol.34 No.7
A metal halide lamp was developed to improve the performance of high pressure mercury lamps. In South Korea, these are used in street lamps, fishing lamps, and automobile headlights; however, these are not specified in Annex A part 1 of the MINAMATA convention. In this study, valuable materials were investigated in automobile headlights and street lights and were minimized to contaminate mercury via staged crushing. The staged crushing prevents mercury emissions in the crushing process. Thus, the mercury concentration in glass-type byproducts from waste HID lamps was increased from 260.29 mg-Hg/kg to 2,907.16 mg-Hg/kg. In addition, glass from waste street lamps was increased from 1,083.71 mg-Hg/kg to 14,101.95 mg-Hg/kg. In the case of street light crushing, mercury-containing glass waste decreased by 67%. The specific wastes from staged crushing were mainly glass type. In this material, mercury species vaporize at over 800°C. The elemental mercury was estimated to oxidize during its use and crushing. Therefore, to ensure the harmless treatment of specific wastes from staged crushing, treatment at over 800°C is recommended.
수은 흡착공정에서 배출되는 폐 활성탄의 열적처리를 통한 흡착성능 재생
김정훈,백승기,성진호,이은송,이주찬,문경림,박용준,서용칠 한국폐기물자원순환학회 2018 한국폐기물자원순환학회지 Vol.35 No.3
This study discusses regeneration of mercury-contaminated, activated carbon from adsorption in the mercuryrecovery process. Mercury in activated carbon was desorbed by thermal treatment, and the regeneration efficiency was confirmed by mercury content and iodine adsorption comparing new and spent activated carbon. Up to 95% of mercury desorbed and up to 86% adsorption performance regenerated at 673 K. Therefore, it is expected that activated carbon can be reused many times by regenerating it through thermal treatment without disposing of mercury-containing activated carbon.