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POSCEA3: A SuperCritical Water Oxidation process to destroy organic liquid and solid waste

Abstract : In case of organic liquid waste treatment, SuperCritical Water Oxidation (SCWO) offers a promising process to destroy radioactive organic liquids. Under supercritical conditions (P> 22.1 MPa ; T> 647 K), water, organic compounds and gases are completely miscible enabling a fast and complete oxidation reaction. Ionic contaminants remained in the aqueous effluent can be further recovered, for example by conventional precipitation or adsorption processes, leading to a decontaminated final aqueous effluent. The gases generated by this low temperature process are only CO$_2$, O$_2$ and N$_2$, without producing by-products such as NOx or SOx compared to other thermal oxidation processes.
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https://hal-cea.archives-ouvertes.fr/cea-02338581
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Submitted on : Friday, February 21, 2020 - 11:02:49 AM
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J.-C. Ruiz, Agnès Grandjean, A. Leybros, H. Turc, J. Tronc-Reynard, et al.. POSCEA3: A SuperCritical Water Oxidation process to destroy organic liquid and solid waste. DEM 2018 - Dismantling Challenges Industrial Reality, Prospects and Feedback Experience, Oct 2018, Avignon, France. ⟨cea-02338581⟩

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