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An Innovative Technology Using Submerged PlasmaThe ELIPSE Process for Liquid Treatment

Abstract : Hazardous liquid organic wastes, radioactive or not, are very various and produced in different quantities. Some of them are treated through specific processes when others are still waiting from outlet to be destroyed and stabilized. Their different composition (chlorinated, phosphate, sulfated, fluorinated, …) make their treatment difficult in a same technology. The ELIPSE process has been design to propose an innovative solution leading to a global treatment of what is usually called “orphan liquids”. This brand new technology involved a non-transferred plasma torch working under a water column ensuring the cooling, the filtration and the scrubbing of the gases coming from the combustion of the liquids. Furthermore, the water that ensures the global cooling of the system leads to low or to avoid the corrosion in a compact process. Only the nozzle of the torch may be affected by the corrosion and may become a wearing part of the system of treatment. After giving a detailed description of the ELIPSE process, the present paper will focus on the results obtained for the treatment of such different liquids as tributyl phosphate, perfluorinated oil and trichloroethylene. In addition to obtaining destruction efficiency upper than 99 per cent, the corrosion seems to have been significantly limited. These features lead to the first conclusion that the ELIPSE process could be a solution for the future to the problem of the hazardous liquid treatment.
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  • HAL Id : cea-02438726, version 1

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F. Lemont, M. Marchand, M. Mabrouk, D. Milelli. An Innovative Technology Using Submerged PlasmaThe ELIPSE Process for Liquid Treatment. 34th International Conference on Thermal Treatment Technologies & Hazardous Waste Combustors, Oct 2016, Baton Rouge, United States. ⟨cea-02438726⟩

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