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- 저자 : 이성유(Seong You Lee) (검색결과 3 건)
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도금폐촉매액내 팔라듐 재자원화에 따른 자원 및 온실가스 감축량 분석
신가영,이성유,강홍윤,Shin, Ka-Young,Lee, Seong-You,Kang, Hong-Yoon 한국자원리싸이클링학회 2021 資源 리싸이클링 Vol.30 No.3
Palladium present in colloidal-type plated spent catalyst solution that is used in electroless plating process has not been recovered but discharged as wastewater so far. Recyclig of paladium in colloidal-type plated spent catalyst solution is achieved with this study. This study presents the estimation of resource consumption and GHG emissions during the recycling and disposal of palladium in the plated spent catalyst solution using life cycle assessment. The reduction of resources and GHG are also estimated. Based on the palladium amount of 1 kg during disposal, the GHG emission amount was estimated to be 9.67E+03 kgCO<sub>2</sub>eq., and the amount of resource consumption was 3.94E+01 kgSb-eq. However, GHG emission was 1.96E+03 kgCO<sub>2</sub>eq., and the amount of resource consumption was 1.54E+01 kgSb-eq. during recycling. Considering the major substances affecting GHG emissions and amount of resource consumption, CO<sub>2</sub> was found to significantly affect GHG emissions, accounting for 91.42% in disposal and 98.37% in recycling. The major substance affecting the amount of resource consumption was hard coal, which accounted for 40.63% in disposal and 60.73% in recycling. Upon recycling 1 kg palladium, 8,967.17 kgCO<sub>2</sub>eq. of greenhouse gas emission was reduced, while the resource consumption was reduced to 10.10 kg Sb-eq. In addition, the direct palladium resource reduction rate due to palladium recycling was 50%.
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Bow-tie 기법을 이용한 아크릴 레진 공정의 위험성 평가
김영운(Young Woon Kim),김현민(Hyun Min Kim),황용우(Yong Woo Hwang),이성유(Seong You Lee) 한국위험물학회 2021 한국위험물학회지 Vol.9 No.1
Chemicals accidents cause various hazards and a lot of damage. In order to prevent chemical accidents, various risk assessments are conducted in Korea. Among them, the Bow-tie risk assessment technique is a technique that displays the cause and effect of an accident on a line and is used widely in foreign countries. The semi-quantitative Bow-tie technique is a technique based on LOPA(Layer of Protection Analysis), which evaluates the appropriateness of protective measures derived from qualitative risk assessment. Acrylic acid is used as a main raw material for polymeric materials, and interest has been increasing due to the problems of supply and safety caused by the recent BASF fire accident. In this study, we compared the Bow-tie technique with the risk assessments currently used in Korea, and conducted a risk assessment on the polymerization process, which is the main use process of acrylic acid. As a result, a total of 8 new protective measures were derived, and it was verified by semi-quantitative Bow-tie technique. Based on the result of Bow-tie risk assessment, the acryl resin process was improved to reduce the risk. This confirms the usefulness of qualitative Bow-tie risk assessment and semi-quantitative Bow-tie risk assessment, and may be useful in other domestic chemical processes.
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그린스크린 기법을 이용한 액체형 합성세제 내 화학물질의 유해성 평가
편다희(Da Hee Pyun),김영운(Young Woon Kim),황용우(Yong Woo Hwang),이성유(Seong You Lee),박순호(Soon Ho Park) 한국위험물학회 2021 한국위험물학회지 Vol.9 No.1
The purpose of this study was to present a method for self-identification and management of the hazards of chemical substances in consumer chemical products using a Green Screen model. In this study, the GreenScreen method was used to evaluate the hazards of chemical substances in each use in the consumer chemical product, and a hypothetical consumer chemical product was selected as the target product. The hazard management method was proposed through the hazard assessment of the target substances. As a result of hypothesis evaluation of hypothetical consumer chemical products, various results were drawn from benchmarks 1 to 4, and in the case of liquid synthetic detergents, surfactants, preservatives and fragrances was classified as a level to manage the hazard. GreenScreen method recommends that the chemicals in the product should be managed to reduce the hazards for those with a benchmark of 2 or higher, and if these databases are built into a structured inventory, companies will be able to review the substances that need to be replaced by considering their functions.
ScienceON
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