The effect of pulsed electric field (PEF) in deactivating biological factors in the wastewater process of conventional water treatment plants

Articles in Press

Authors

1 Department of Chemistry, Ardabil Branch, Islamic Azad University, Ardabil- Iran

2 Department of Applied Chemistry, Faculty of Pharmaceutical Chemistry, Islamic Azad University of Medical Sciences, Tehran, Iran

3 East Tehran Management, Tehran Water and Wastewater Company, Tehran, Iran

Abstract

Based on the sharp decrease in rainfall in the country's watershed areas during the water year 1400-1399 and the continuation of this trend until the end of the current year's Farvardin month, it is expected that the country will face a dry and water-scarce year. By using qualitative examination and general counting of biological agents under the microscope, the overall pollution level and the presence of agents in contaminated samples for each kV/cm, in 6 specified times (10, 20, 30, 40, 50, 60 minutes) were investigated. took The investigated parameters in the inactivation of biological agents, one was the strength of the electric field (kV/cm) and the other was the contact time (min) of the biological agents with the pulsed electric field, so that in the range of 1 to 6 kV/cm there is no effective effect on the agents. It did not show biological effect and the effect of deactivating biological agents from the range of 6 kV/cm and up to 13 kV/cm was effective on biological agents. In this research, the pulsed electric field (PEF) is a very good non-thermal method to inactivate major biological factors such as nematodes, diatoms, cyanophyce and chlorophyce found in water and wastewater.

Keywords

Journal of Water and Wastewater Science and Engineering

Articles in Press, Accepted Manuscript
Available Online from 07 April 2024

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History

  • Receive Date: 30 October 2023
  • Revise Date: 05 April 2024
  • Accept Date: 07 April 2024

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