Solid waste decontamination by thermal desorption and catalytic oxidation methods
-
Olga Šolcov
,
Pavel Topka
Abstract
Combined thermal desorption and catalytic oxidation for soil decontamination was studied at the pilot plant scale. Gasoline, xylene, and 2-methylnaphthalene were used as model contaminants in the concentrations from 2 g to 10 g per kg of soil. To guarantee the flow of the exhaust gas from the thermal desorption unit into the catalytic oxidation unit, a Venturi pump was used. Based on the laboratory scale catalytic tests, the commercial catalyst EnviCat® VOC-1544 was employed in the catalytic oxidation. Residual concentrations of hydrocarbons in soil after the thermal desorption were below the detection limits of the applied analytical method (GC-MS). Although the contaminant concentrations at the inlet of the catalytic reactor significantly varied during the experiments, the efficiency of catalytic oxidation was higher than 90 % in all cases.
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© 2013 Institute of Chemistry, Slovak Academy of Sciences
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Articles in the same Issue
- Environmental catalysis — Topical issue
- Structured catalysts for methanol-to-olefins conversion: a review
- Diesel soot combustion catalysts: review of active phases
- State of the art in catalytic oxidation of chlorinated volatile organic compounds
- Effect of zinc introduction on catalytic performance of ZSM-5 in conversion of methanol to light olefins
- Mesoporous phosphated and sulphated silica as solid acid catalysts for glycerol acetylation
- Valorisation of bio-oil resulting from fast pyrolysis of wood
- Microwave hydrothermal synthesis, characterisation, and catalytic performance of Zn1−x MnxO in cellulose conversion
- Montmorillonite intercalated with SiO2, SiO2-Al2O3 or SiO2-TiO2 pillars by surfactant-directed method as catalytic supports for DeNOx process
- Fe- and Cu-oxides supported on γ-Al2O3 as catalysts for the selective catalytic reduction of NO with ethanol. Part I: catalyst preparation, characterization, and activity
- Characterization of LaRhO3 perovskites for dry (CO2) reforming of methane (DRM)
- Visible light photoelectrocatalytic degradation of rhodamine B using a dye-sensitised TiO2 electrode
- CdS/TiO2 composite films for methylene blue photodecomposition under visible light irradiation and non-photocorrosion of cadmium sulfide
- Photocatalytic air-cleaning using TiO2 nanoparticles in porous silica substrate
- Cost-effectiveness analysis to assess commercial TiO2 photocatalysts for acetaldehyde degradation in air
- Solid waste decontamination by thermal desorption and catalytic oxidation methods
