• solid waste decontamination by thermal desorption and catalytic oxidation methods

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 839
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     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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