Decontamination Device of Escherichia Coli present in Water using Pulsed Electric Field
Abstract— This paper is about the decontamination device for Escherichia Coli present in water using Pulsed Electric Field (PEF). A device that uses lower applied pulse voltage and a specialized treatment chamber that is smaller in scale and more convenient to use compared to conventional PEF systems. Log reduction method was used to determine how much bacteria were decontaminated after the PEF treatment. There were seven tests with an initial E. Coli count of 120,000 CFU/ml that resulted to no bacteria growth, ad at a pulse voltage of 110V, and frequency of 500Hz regardless if the used duty cycle is 10%, 30%, or 50% in the procedure, it produced total reduction of E. coli bacteria. The treated water that underwent PEF process passed the potability test which used Heterotrophic Plate Count (HPC) that resulted to below the standard value of less than 500 CFU/ml, therefore the PEF-treated water is potable.
Index Terms— decontamination device, Escherichia coli, pulsed electric field
Rhemo E. Bacerra, Paulo C. Dela Peña, Iyra Faye T. Jacob, Earlene A. Sarmiento, Ramon G. Garcia, Charmaine C. Paglinawan
School of Electrical, Electronics, and Computer Engineering, Mapua University, PHILIPPINES
Cite: Rhemo E. Bacerra, Paulo C. Dela Peña, Iyra Faye T. Jacob, Earlene A. Sarmiento, Ramon G. Garcia, Charmaine C. Paglinawan, "Decontamination Device of Escherichia Coli present in Water using Pulsed Electric Field," Proceedings of 2018 the 8th International Workshop on Computer Science and Engineering, pp. 828-833, Bangkok, 28-30 June, 2018.