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Analysis of polychlorinated biphenyls treatment present in transformers oils

Author

Listed:
  • Kelly Dumorné
  • Margie Zorrilla Velazco
  • Petra Velazco Pedroso

Abstract

In this research, we demonstrated the effectiveness of potassium polyethylene plycolate method (KPEG) in the removal of polychlorinated biphenyls (PCBs) from transformer oil. A commercially available transformer oil composed of a mixture of PCBs (Aroclor 1254) was treated by polyethylene glycol 400 (PEG 400), with potassium hydroxide (KOH). The relative efficiency of the different treatments was assessed in terms of the destruction and removal efficiency (DRE, %) by means of gas chromatography at different reaction times. Our results revealed that the DRE average, with a value of 95.0%, was obtained under the experimental conditions: mol ratio KOH/PEG = 2:1 and KPEG/oil = 30:1 for 3 h 30 min of reaction at 90°C. Additionally, the influence of time demonstrated effect on the dechlorination of PCBs.

Suggested Citation

  • Kelly Dumorné & Margie Zorrilla Velazco & Petra Velazco Pedroso, 2017. "Analysis of polychlorinated biphenyls treatment present in transformers oils," International Journal of Environmental Technology and Management, Inderscience Enterprises Ltd, vol. 20(1/2), pages 10-21.
    • Handle: RePEc:ids:ijetma:v:20:y:2017:i:1/2:p:10-21
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