Analise de riscos e avaliação de impacto ambiental em uma instalação de processamento quimico / Risk analysis and environmental impact analysis in a chemical processing facility

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

The industrial accidents which have occurred in the last few years, particularly in the 80 s, allied to environmental problems, contributed in a significant way to draw the attention of the government, of the industry and of the whole society to mechanisms for preventing events that could affect people s safety and environment quality. Nowadays there is a strong trend towards the quantitative risk analysis, considered an useful tool in hazard identification, to be more frequently used in the most critical areas of industrial systems with accident risk and environmental consequences.The present work provides a method of risk analysis in chemical processing facilities, which consists primarily of the following steps: description and study of the system, hazard analysis and identification, identification of the accidental scenarios, calculation of the consequences of the scenarios and risk characterization. To illustrate the application of the method, an uranium hexafluoride production facility was selected. The main hazards identified were: fire, explosion, spill of toxic chemical substances and ground contamination due to problems in the waterproof blanket of the waste contention bund. Some cases of environmental impact due to uranium hexafluoride (UF6) release were quantitatively analyzed for different scenarios, considering three categories of atmospheric stability: Pasquill C, Pasquill D and Pasquill F. It was found that the impact that reached a great external area around the plant corresponded to the condition of atmospheric stability F

ASSUNTO(S)

risk analysis environmental analysis accident processos quimicos meio ambiente impacto ambiental avaliação de riscos environmental impact

ACESSO AO ARTIGO

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