Title: Plasma chemical process for treatment of hazardous wastes

Authors: Iv. Georgiev, Zh. Bulgaranova, B. Kumanova

Addresses: Institute 'Minproekt' – DNI, 14 'KI. Ohridski' boul., 1756 Sofia, Bulgaria. ' Institute 'Minproekt' – DNI, 14 'KI. Ohridski' boul., 1756 Sofia, Bulgaria. ' Higher Institute of Chemical Technology, 8 'KI. Ohridski' boul., 1756 Sofia, Bulgaria

Abstract: The conventional methods of combustion are not always effective. One of the new methods for waste treatment is the destruction in plasma jet of chemical reactive gases. An unit with plasmotron power up to 50 kW is constructed for the investigations. Sulphur, chlorine and nitrogen containing organic toxic wastes are subjected to destruction. Water steam, air and their mixture are used as plasma generating gas and chemical reagent. The studies are carried out at a different ratio of plasma generating gasltoxic wastes at temperatures to 2000°C. The products are analysed by gas mass spectroscopy. The released gas is composed of Co, H₂ and CO₂. There were found no hydrocarbons, dioxine and furan. Gas heat value is good for its burning without environment pollution.

Keywords: detoxification; plasma chemical processes; hazardous wastes; waste treatment; plasma jets; chemical reactive gases; sulphur, chlorine; nitrogen; organic toxic wastes.

DOI: 10.1504/IJMPT.1995.036475

International Journal of Materials and Product Technology, 1995 Vol.10 No.3/4/5/6, pp.522 - 529

Published online: 03 Nov 2010 *

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