Risk assessment with the fuzzy logic method for Ankara OIZ environmental waste water treatment plant

Abstract

In this study, occupational safety risk assessment has been performed for Ankara Chamber of Industry 2nd and 3rd Organized Industrial Zone (OIZ) Regional Directorate - Environmental Waste Water Treatment Plant (WWTP) by fuzzy logic method. In the literature, there are lots of risk assessment methodologies. These methods for the risk level do not give accurate results in systems such as WWTPs with a lot of complexity and variability. Also, these methods include strict lines and are not reflecting the practical issues of the real-world applications. For this reason, these methods are to be adopted by the use of fuzzy logic. Fuzzy Logic Risk Analysis Model which gives more realistic results compared to traditional methods based on probability. For fuzzy safety risk assessment firstly membership functions for input and output are created and values risk assessment input data is blurred then Fuzzy Risk Priority Number (FRPN) is determined in the Matlab 2013a software program. In this study a risk matrix merged with Fuzzy Logic model is developed to enhance the risk assessment process which is dealing with uncertainties that arise in each phase of the risk assessment process. RPN values were investigated and compared by 5x5 matrix and fuzzy logic method.

Keywords

• Risk management
• Modelling
• Fuzzy Logic
• Waste water treatment plant

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