Application of bipolar plasma discharge over the liquid surface for water purification from chemical and bacterial pollution

• Main Authors: Liesnoi, V.O., Taran, A.O., Komozynskyi, P.A., Kyslytsyn, O.P., Podshyvalova, O.V., Taran, S.G., Bukariev, A.O., Oranska, D.A.
• Format: Article
• Language: English
• Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2019
• Series: Вопросы атомной науки и техники
• Subjects: Low temperature plasma and plasma technologies
• Online Access: http://dspace.nbuv.gov.ua/handle/123456789/194707

The paper presents the results of development of a high-voltage pulse generator that provides formation of a bipolar low-temperature plasma discharge above the liquid surface. The generator is constructed after the scheme with an inductive energy store and, as a such energy store, a high-voltage inductor (Ruhmkorff coil) is used. The generator provides an adjustable pulse repetition frequency from 70 to 500 Hz with a voltage amplitude up to 300 kV at a current amplitude up to 4 A. The generator was tested by the formation of a plasma discharge above the water surface. It is shown that such a discharge provides an effective purification of water from chemical (chloroform, etc.) and bacterial (Esherichia coli, Candida albicans et al.) pollution.