The Elipse Process An underwater plasma technology for hazardous organic liquid treatment
Résumé
Hazardous liquid organic wastes are very various and produced in different quantities. Some of themare treated through specific processes when others are still waiting from outlet to be destroyed andstabilized. Their different composition (chlorinated, phosphate, sulfated, fluorinated ) make theirtreatment difficult by the same technology.The ELIPSE process has been designed to propose an innovative solution leading to a global treatmentof what is usually called orphan liquids. This brand new technology involved a non-transferredplasma torch working under a water column ensuring the cooling, the filtration and the scrubbing ofthe gases coming from the combustion of the liquids. Furthermore, the water that ensures the globalcooling of the system leads to low or to no corrosion in a compact process. Only the nozzle of the torchmay be affected by the corrosion and may become a wearing part of the treatment system.After giving a detailed description of the ELIPSE process, the present paper will focus on the resultsobtained for the treatment of such different liquids as tributyl phosphate, perfluorinated oil andtrichloroethylene. In addition to obtaining destruction efficiency upper than 99%, the corrosion of thereactor seems to have been significantly limited. These features lead to the first conclusion that theELIPSE process could be a solution for the future to the problem of the hazardous liquid treatment.Furthermore, if the main objective of the ELIPSE process is the destruction of hazardous waste throughinstantaneous combustion in oxygen plasma, their gasification could be envisaged through argonand/or water plasma in order to produce Syngas for energy recovery.
Origine : Fichiers produits par l'(les) auteur(s)
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