일부 화학제품 제조업을 대상으로 사고사례 및 빈도 분석을 통한 사업장 전과정(LC) 위험성 평가

Abstract

Even after the hydrofluoric acid accident in Gumi in 2012, chemical accidents, both large and small, continue to occur in the manufacturing industry, and the risk is particularly high in small and medium-sized businesses. They complain about the difficulty of dealing with safety and health issues due to lack of resources such as time, staff, and capital. As the facilities of chemical plants are becoming more sophisticated, the risk of accidents is increasing, and the accident rate in non-routine operations such as maintenance and process changes is high. Life Cycle Assessment (LCA) is a technique to analyze the entire flow of existing chemicals, but a life cycle that focuses on environmental aspects and manages risks in terms of safety engineering is required. In this study, risk assessment was conducted by analyzing the cases and frequency of chemical accidents in the life cycle of chemical product manufacturing sites. In particular, it was attempted to efficiently utilize limited resources by giving priority to quantitative evaluation. Cases of accidents in Korea and abroad were collected, and the intensity and frequency of occurrence were calculated for each accident case. As a result of the study, the priority of risk management of the facility was selected in the order of storage tank, reactor, pump and storage container, tank lorry and mixer. As a result of comparing the changes of the F-N curve for the storage tank and the mixer using the Safeti 8.4 program, it was shown that the storage tank has a higher priority than the mixer. It is judged that the limited resources of small and medium-sized businesses can be used efficiently through this study, and it is necessary to establish a unified form and reporting system for accurate frequency calculation.