Abstract

Water treatment is an economically vital process for enhancing the quality of water. A Pulsed Electric Field (PEF) technology inactivates microbes and is more suitable for water disinfection. This paper discusses PEF technology for water treatment applications generating high voltage pulsed output from the proposed Quadratic Boost Converter-based Ringing Circuit (QBCRC). High voltage pulsed circuits find application in biotech and medical applications, the food industry, chemical disinfectant, and drinking water purification. QBCRC produces high voltage output pulse from low dc voltage with high gain. Solid-state chopping switches are used to chop and rectify the high voltage generated waveform. This paper shows the unipolar pulse generation for wastewater application using MATLAB simulation software. QBCRC operates in discontinuous mode to provide a voltage peak for the underdamped system, increasing efficiency. The proposed low component count converter has reduced losses and generates a high voltage pulse with higher efficiency and reduced cost. A hardware prototype of the proposed QBCRC is presented, which validates this prototype for water treatment application.

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