Mehrzad Zandieh - M.Sc., Chemical Engineering, Process Design, Razi University, Kermanshah, Iran

In this novel and applied study, it was investigated risk assessment ofcorrosion in different components of an aerobic bioreactor with incidentreporting risk matrix method. These components included pipe of inletfeed/ related elbow/ related pump, pipe of inlet air/ related fittings andaerator, agitator, bioreactor internal surface, probes sensors and pipe ofeffluent/ related elbow/ related pump. With for achievement to this thisaim, incident reporting risk matrix method, as a very effective method,was used. It was investigated the hazards, their causes and effects. Also,it was identified the occurrence possibilities and severity ofconsequences. Moreover, risk levels were obtained. It was found that60% of the risks had probability level of “possible”. Also, 50% of therisks had severity levels of “moderate”. According to results, 50% ofthe risks had “medium” level as risk importance level. It was proposedprevention and control actions for decreasing and controlling risks.

Risk assessment, Corrosion, Aerobic, Bioreactor