发明名称 |
DISPOSAL AND DECONTAMINATION OF RADIOACTIVE POLYVINYL ALCOHOL PRODUCTS |
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. |
申请公布号 |
EP2502235(A4) |
申请公布日期 |
2015.12.02 |
申请号 |
EP20100831221 |
申请日期 |
2010.11.12 |
申请人 |
HANA INSPECTION & ENGINEERING CO., LTD |
发明人 |
KIM, JIN-KIL;LEE, UI-DONG;KIM, HYUN-KI;HONG, SEONG-JUN |
分类号 |
G21F9/06;A62D3/00;C02F1/42;C02F1/66;C02F1/72;C02F101/00;G21F9/12;G21F9/14;G21F9/20 |
主分类号 |
G21F9/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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