Descrição da análise preliminar de risco da área de produção de dióxido de cloro de uma indústria de fabricação de celulose

Abstract

The present study aims to describe the preliminary risk analysis of the chlorine dioxide production area of a pulp industry, located in Paraná, Brazil. The organization in study produces bleached eucalyptus pulp and pulp and has the capacity to produce 1.5 million tons of pulp per year, 1.1 million of short-fiber (eucalyptus) pulp and 400 thousand tons of long fiber (pinus). To elaboration the preliminary risk analysis at the beginning of the construction of the industry, a multidisciplinary team formed by a safety engineer, environmental engineer, process engineer, and area experts was created to identify the risks to health and safety of workers, the environment and equipment. In addition, this team was responsible for assessing the frequency and severity of each risk, considering the existing detections and safeguards in the design of the project as well as existing control measures. The study presented nine accidental hypotheses in chlorine dioxide production area. The methodology used includes five categories of frequency (Rare, Unlikely, Possible, Likely and Frequent) and four categories of severity (Negligible, Minor, Moderate and Catastrophic). The risk categories were segregated into Negligible, Minor, Moderate, Serious, and Critical. Based on the methodology used, the presented results showed that the organization has high capacity of minimization and prevention of risks, as well as many actions to prevent them from happening. Thus, the main risks to the health and safety of people fall into the Minor category (7), the main risks to the environment fall into the Despicable category (7) and the main risks to facilities fall into the Minor category (8).