Publicado 4 números por año
ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360
Indexed in
Simulation of Heavy Metals Volatility during the Vitrification of Fly Ashes by Thermal Plasma
SINOPSIS
This is a study of the heavy metals volatility during the vitrification of fly ashes by arc plasma. The vaporization model applied is based on the method of the free enthalpy minimization of the system coupled with the mass transfer equations at the reactional interface. This model enables us to determine the influence of the various parameters -like temperature, nature of the atmosphere of the furnace and matrix composition- on the volatility of lead, cadmium, zinc and arsenic. The results obtained indicate that an increase of the bath temperature produces an increase of the metals volatility. The oxygen content in the carrier gas permits a better metal's containments in the matrix, except in the case of the chromium which is more volatile in an oxidizing atmosphere. However the chlorine species trapped in the containment matrix accelerates considerably the evaporation of zinc, lead and cadmium, but don't affect the arsenic volatility. It has been noticed that it is possible to trap arsenic species in a solid state by the production of calcium arsenate if the lime content is increased. The results of the model are compared with those obtained from the experimental studies.
-
Ghiloufi Imed, Study of 239Pu, 144Ce, and 90Sr Behavior During Radioactive Wastes Treatment by Thermal Plasma Technology, Plasma Chemistry and Plasma Processing, 29, 4, 2009. Crossref
-
Chen Hui, Wang Jie, Zheng Yanli, Zhan Jiao, He Chenliu, Wang Qiang, Algal biofuel production coupled bioremediation of biomass power plant wastes based on Chlorella sp. C2 cultivation, Applied Energy, 211, 2018. Crossref
-
Ghiloufi Imed, Girold Christophe, Optical Emission Spectroscopy Measurements and Simulation of Radioelement Volatility During Radioactive Waste Treatment by Plasma, Plasma Chemistry and Plasma Processing, 31, 1, 2011. Crossref
-
Al-Mayman Sulaiman, AlShunaifi Ibrahim, Albeladi Abdullah, Ghiloufi Imed, Binjuwair Saud, Treatment of fly ash from power plants using thermal plasma, Beilstein Journal of Nanotechnology, 8, 2017. Crossref
-
Ghiloufi Imed, Simulation of radioelement volatility during the vitrification of radioactive wastes by arc plasma, Journal of Hazardous Materials, 163, 1, 2009. Crossref
-
Ghiloufi Imed, Albishi Miqad S., Alharbi Ahmed A., AlShunaifi Ibrahim A., Plasma Technology for Phosphogypsum Treatment, Energies, 14, 18, 2021. Crossref
-
AlShunaifi Ibrahim, Ghiloufi Imed, Albeladi Abdullah, Alharbi Ahmed, Toxic Elements Behavior during Plasma Treatment for Waste Collected from Power Plants, Applied Sciences, 12, 13, 2022. Crossref