Application of FTA Analysis for Calculation of the Probability of the Failure of the Pressure Leaching Process
European Union legislation requires organizations to assess their processes in the context of risk management. The main task of risk management is to manage all risks that can significantly affect the outcome of processes. The article is focused on risk evaluation in pressure leaching at elevated te...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/15/6731 |
| _version_ | 1797525847500914688 |
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| author | Stefan Markulik Marek Šolc Jozef Petrík Michaela Balážiková Peter Blaško Juraj Kliment Martin Bezák |
| author_facet | Stefan Markulik Marek Šolc Jozef Petrík Michaela Balážiková Peter Blaško Juraj Kliment Martin Bezák |
| author_sort | Stefan Markulik |
| collection | DOAJ |
| description | European Union legislation requires organizations to assess their processes in the context of risk management. The main task of risk management is to manage all risks that can significantly affect the outcome of processes. The article is focused on risk evaluation in pressure leaching at elevated temperature using the method Fault Tree Analysis (FTA). The effectivity of pyrite and arsenic pyrite decomposition by oxidative pressure leaching is influenced by the duration of the process, by the temperature, concentration of the leaching solution and by a density of the slurry. It was found that, under equitable conditions, the arsenic pyrite decomposes more intensely than pyrite. Under laboratory conditions, leaching is performed in an autoclave. Due to the aggressive environment, increased pressure and temperature, process failure is possible. Its probability was calculated by FTA. It has been found that the probability of the top event in the examined process was disproportionately high (0.057) and represents an invitation to take corrective actions. The Monte Carlo method was used for the simulation of the effect the probability of basic events on the probability of the top event—the failure of the leaching process. |
| first_indexed | 2024-03-10T09:19:47Z |
| format | Article |
| id | doaj.art-65e07015b4d24740be067e3d3edbba8a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T09:19:47Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-65e07015b4d24740be067e3d3edbba8a2023-11-22T05:18:43ZengMDPI AGApplied Sciences2076-34172021-07-011115673110.3390/app11156731Application of FTA Analysis for Calculation of the Probability of the Failure of the Pressure Leaching ProcessStefan Markulik0Marek Šolc1Jozef Petrík2Michaela Balážiková3Peter Blaško4Juraj Kliment5Martin Bezák6Department of Safety and Quality, Faculty of Mechanical Engineering, Technical University of Kosice, Letna 1/9, 04200 Kosice, SlovakiaInstitute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Letna 1/9, 04200 Kosice, SlovakiaInstitute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Letna 1/9, 04200 Kosice, SlovakiaDepartment of Safety and Quality, Faculty of Mechanical Engineering, Technical University of Kosice, Letna 1/9, 04200 Kosice, SlovakiaInstitute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Letna 1/9, 04200 Kosice, SlovakiaInstitute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Letna 1/9, 04200 Kosice, SlovakiaFaculty of Mechanical Engineering, Technical University of Kosice, Letna 1/9, 04200 Kosice, SlovakiaEuropean Union legislation requires organizations to assess their processes in the context of risk management. The main task of risk management is to manage all risks that can significantly affect the outcome of processes. The article is focused on risk evaluation in pressure leaching at elevated temperature using the method Fault Tree Analysis (FTA). The effectivity of pyrite and arsenic pyrite decomposition by oxidative pressure leaching is influenced by the duration of the process, by the temperature, concentration of the leaching solution and by a density of the slurry. It was found that, under equitable conditions, the arsenic pyrite decomposes more intensely than pyrite. Under laboratory conditions, leaching is performed in an autoclave. Due to the aggressive environment, increased pressure and temperature, process failure is possible. Its probability was calculated by FTA. It has been found that the probability of the top event in the examined process was disproportionately high (0.057) and represents an invitation to take corrective actions. The Monte Carlo method was used for the simulation of the effect the probability of basic events on the probability of the top event—the failure of the leaching process.https://www.mdpi.com/2076-3417/11/15/6731tetrahedritepyritearsenic pyritepressure leachingfailure tree analysis (FTA)Monte Carlo method |
| spellingShingle | Stefan Markulik Marek Šolc Jozef Petrík Michaela Balážiková Peter Blaško Juraj Kliment Martin Bezák Application of FTA Analysis for Calculation of the Probability of the Failure of the Pressure Leaching Process Applied Sciences tetrahedrite pyrite arsenic pyrite pressure leaching failure tree analysis (FTA) Monte Carlo method |
| title | Application of FTA Analysis for Calculation of the Probability of the Failure of the Pressure Leaching Process |
| title_full | Application of FTA Analysis for Calculation of the Probability of the Failure of the Pressure Leaching Process |
| title_fullStr | Application of FTA Analysis for Calculation of the Probability of the Failure of the Pressure Leaching Process |
| title_full_unstemmed | Application of FTA Analysis for Calculation of the Probability of the Failure of the Pressure Leaching Process |
| title_short | Application of FTA Analysis for Calculation of the Probability of the Failure of the Pressure Leaching Process |
| title_sort | application of fta analysis for calculation of the probability of the failure of the pressure leaching process |
| topic | tetrahedrite pyrite arsenic pyrite pressure leaching failure tree analysis (FTA) Monte Carlo method |
| url | https://www.mdpi.com/2076-3417/11/15/6731 |
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