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公开(公告)号：US20120220809A1
公开(公告)日：2012-08-30
申请号：US13508895
申请日：2010-11-12
申请人： Jin-Kil Kim , Ui-Dong Lee , Hyun-Ki Kim , Seong-Jun Hong
发明人： Jin-Kil Kim , Ui-Dong Lee , Hyun-Ki Kim , Seong-Jun Hong
摘要： Methods and apparatus for decontaminating disposable protective products prepared from polyvinyl alcohol (PVA), used in a nuclear power plant, to less than minimum detectable activity (MDA) are disclosed. In the disclosed methods and apparatus, solid protective products made of PVA, generated from a nuclear power plant, are dissolved into a liquid, and then are decontaminated to less than MDA. The PVA solution decontaminated in this way is concentrated to an appropriate concentration or dried, and finally is subjected to self-disposal. This can fundamentally block the generation amount of combustible waste amounting to 50% or more of low and intermediate level waste of nuclear power plants, thereby considerably contributing to a reduction of the operating expenses of the nuclear power plants. The present invention further relates to methods and apparatus for self-disposing disposable protective products manufactured by conventional polyvinyl alcohol (PVA) through pyrolysis/catalytic oxidation of a PVA solution generated by concentration, and treating the decontaminated PVA solution within a plant. The PVA protective products are dissolved/concentrated/oxidized in water to remove firstly organic matter, and then PVA materials in the PVA solution are completely oxidized into CO2 and H2O by using a small-sized pyrolysis/catalytic oxidation reactor.
摘要翻译： 公开了将用于核动力装置的聚乙烯醇（PVA）制备的一次性防护产品去污化至少于最小可检测活性（MDA）的方法和装置。 在所公开的方法和装置中，由核电厂生产的由PVA制成的固体保护产品溶解在液体中，然后净化成小于MDA。 以这种方式去除的PVA溶液被浓缩至适当的浓度或干燥，最后进行自我处理。 这可以从根本上阻止核电厂中低档废物达到50％以上的可燃废物的发电量，从而大大有助于降低核电厂的运行费用。 本发明还涉及通过常规聚乙烯醇（PVA）通过热分解/催化氧化浓缩产生的PVA溶液和处理植物中去污的PVA溶液来自行布置一次性防护产品的方法和装置。 PVA保护产物在水中溶解/浓缩/氧化，首先除去有机物质，然后使用小型热解/催化氧化反应器将PVA溶液中的PVA材料完全氧化成CO 2和H 2 O.
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公开(公告)号：US08686213B2
公开(公告)日：2014-04-01
申请号：US13508895
申请日：2010-11-12
申请人： Jin-Kil Kim , Eui-Dong Lee , Hyun-Ki Kim , Seong-Jun Hong
发明人： Jin-Kil Kim , Eui-Dong Lee , Hyun-Ki Kim , Seong-Jun Hong
IPC分类号： G21F9/14
摘要： Methods and apparatus for decontaminating disposable protective products prepared from polyvinyl alcohol (PVA), used in a nuclear power plant, to less than minimum detectable activity (MDA) are disclosed. In the disclosed methods and apparatus, solid protective products made of PVA, generated from a nuclear power plant, are dissolved into a liquid, and then are decontaminated to less than MDA. The PVA solution decontaminated in this way is concentrated to an appropriate concentration or dried, and finally is subjected to self-disposal. This can fundamentally block the generation amount of combustible waste amounting to 50% or more of low and intermediate level waste of nuclear power plants, thereby considerably contributing to a reduction of the operating expenses of the nuclear power plants. The present invention further relates to methods and apparatus for self-disposing disposable protective products manufactured by conventional polyvinyl alcohol (PVA) through pyrolysis/catalytic oxidation of a PVA solution generated by concentration, and treating the decontaminated PVA solution within a plant. The PVA protective products are dissolved/concentrated/oxidized in water to remove firstly organic matter, and then PVA materials in the PVA solution are completely oxidized into CO2 and H2O by using a small-sized pyrolysis/catalytic oxidation reactor.
摘要翻译： 公开了将用于核动力装置的聚乙烯醇（PVA）制备的一次性防护产品去污化至少于最小可检测活性（MDA）的方法和装置。 在所公开的方法和装置中，由核电厂生产的由PVA制成的固体保护产品溶解在液体中，然后净化成小于MDA。 以这种方式去除的PVA溶液被浓缩至适当的浓度或干燥，最后进行自我处理。 这可以从根本上阻止核电厂中低档废物的50％以上的可燃废物的发电量，从而大大有助于降低核电厂的运行费用。 本发明还涉及通过常规聚乙烯醇（PVA）通过热分解/催化氧化浓缩产生的PVA溶液和处理植物中去污的PVA溶液来自行布置一次性防护产品的方法和装置。 PVA保护产物在水中溶解/浓缩/氧化，首先除去有机物质，然后使用小型热解/催化氧化反应器将PVA溶液中的PVA材料完全氧化成CO 2和H 2 O.
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