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公开(公告)号：US5805654A
公开(公告)日：1998-09-08
申请号：US826835
申请日：1997-04-08
摘要： A method for operating the LOMI decontamination process in a regenerative manner. The method incorporates an initial injection of a dilute LOMI solution (vanadous formate, picolinic acid and sodium hydroxide) into a decontamination circuit followed by operation of a small cluster of cation exchange columns during the decontamination process. The cation exchange resin is used to remove metals in the same manner as in prior decontamination processes but operation of the cation exchange resin is continued to allow picolinic acid initially bound to the cation exchange resin to be released and recycled to the LOMI solution. Operation of the cation exchange columns ceases after the picolinic acid has been released but before the metals (e.g. sodium, iron and vanadium) are released back to the LOMI solution. The cluster of cation exchange columns are operated according to a sequence wherein one column is releasing picolinic acid while another is binding picolinic acid. The method further includes continuous additions of vanadous formate and sodium hydroxide. Clean-up at the end of the method proceeds in the normal manner wherein larger cation and anion exchange columns are utilized. Because the concentration of the components is much lower than conventional LOMI processes, however, the amount of cation exchange resin required at this stage is greatly reduced.
摘要翻译： 一种以再生方式操作LOMI去污工艺的方法。 该方法将稀释的LOMI溶液（甲酸钒酸盐，吡啶甲酸和氢氧化钠）初始注入去污电路，然后在净化过程中操作一小群阳离子交换柱。 使用阳离子交换树脂以与先前的去污处理相同的方式除去金属，但继续使阳离子交换树脂的操作使得最初与阳离子交换树脂结合的吡啶甲酸被释放并再循环到LOMI溶液中。 在吡啶甲酸释放后，但金属（例如钠，铁和钒）释放回LOMI溶液之前，阳离子交换柱的操作停止。 阳离子交换柱的簇根据其中一个塔释放吡啶甲酸而另一个是结合吡啶甲酸的顺序操作。 该方法还包括连续加入甲酸铵和氢氧化钠。 在方法结束时的清理以正常方式进行，其中使用较大的阳离子和阴离子交换柱。 然而，由于组分的浓度远远低于常规的LOMI方法，所以在此阶段所需的阳离子交换树脂的量大大降低。
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公开(公告)号：US5901368A
公开(公告)日：1999-05-04
申请号：US868500
申请日：1997-06-04
CPC分类号： C02F1/30 , G21F9/06 , G21F9/12 , C02F2101/006
摘要： A method for minimizing the radioactive waste produced by decontamination processes for water-cooled nuclear reactors. The method exposes the decontamination chemicals to the ionizing radiation emitted from the reactor fuel under controlled conditions to convert the decontamination chemicals into harmless gas phase products.
摘要翻译： 一种减少水冷核反应堆净化过程产生的放射性废物的方法。 该方法将去污化学品暴露于在受控条件下从反应堆燃料发射的电离辐射，以将去污化学品转化为无害气相产物。
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公开(公告)号：US09208915B2
公开(公告)日：2015-12-08
申请号：US13267603
申请日：2011-10-06
IPC分类号： G21F9/00 , G21F9/14 , G21F9/16 , G21F9/20 , B01J49/00 , C02F1/42 , G21F9/12 , G21F9/28 , G21F9/30 , B09B1/00 , B09B3/00 , B09B5/00 , C02F11/00 , A62D3/00 , C04B18/04 , B01D11/00
摘要： A method of processing ion exchange resin radioactive waste, wherein the radioactive waste contains a plurality of fractions of radioactive waste based on density, which may include cation resin waste and anion resin waste, wherein at least one of the plurality of fractions comprises a total concentration of at least one radionuclide, including performing at least one of the following operations (i), (ii) or (iii): (i) separating the at least one of the plurality of fractions from the radioactive waste utilizing a moving freeboard; (ii) separating the radioactive waste into cation resin waste and anion resin waste; or (iii) removing at least a portion of the total concentration of the at least one radionuclide from: the radioactive waste; the at least one of the plurality of fractions separated by the moving freeboard; or at least one of the radioactive waste, the cation resin waste or the anion resin waste.
摘要翻译： 一种处理离子交换树脂放射性废物的方法，其中所述放射性废物基于密度包含多个放射性废物部分，其可包括阳离子树脂废物和阴离子树脂废物，其中所述多个馏分中的至少一个包含总浓度 包括执行以下操作（i），（ii）或（iii）中的至少一个：（i）利用移动的干舷将多个馏分中的至少一个与放射性废物分离; （ii）将放射性废物分解为阳离子树脂废物和阴离子树脂废物; 或（iii）从放射性废物中去除至少一种放射性核素的总浓度的至少一部分; 由移动的干舷分开的多个分数中的至少一个; 或放射性废物，阳离子树脂废物或阴离子树脂废物中的至少一种。
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4.发明授权Magnetic molecules: a process utilizing functionalized magnetic ferritins for the selective removal of contaminants from solution by magnetic filtration 失效磁性分子：利用功能化磁性铁素体通过磁性过滤从溶液中选择性除去污染物的方法公开(公告)号：US06972095B1
公开(公告)日：2005-12-06
申请号：US10434521
申请日：2003-05-07
CPC分类号： B03C1/01
摘要： A decontamination system uses magnetic molecules having ferritin cores to selectively remove target contaminant ions from a solution. The magnetic molecules are based upon a ferritin protein structure and have a very small magnetic ferritin core and a selective ion exchange function attached to its surface. Various types of ion exchange functions can be attached to the magnetic molecules, each of which is designed to remove a specific contaminant such as radioactive ions. The ion exchange functions allow the magnetic molecules to selectively absorb the contaminant ions from a solution while being inert to other non-target ions. The magnetic properties of the magnetic molecule allow the magnetic molecules and the absorbed contaminant ions to be removed from solution by magnetic filtration.
摘要翻译： 去污系统使用具有铁蛋白芯的磁分子来从溶液中选择性地去除目标污染物离子。 磁性分子基于铁蛋白蛋白质结构，并具有非常小的磁铁蛋白核心和附着于其表面的选择性离子交换功能。 磁性分子可附着各种类型的离子交换功能，每一种都被设计成去除特定污染物例如放射性离子。 离子交换功能允许磁分子选择性地从溶液中吸收污染物离子，同时对其它非目标离子是惰性的。 磁性分子的磁特性允许磁性分子和吸收的污染物离子通过磁性过滤从溶液中除去。
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公开(公告)号：US06682646B2
公开(公告)日：2004-01-27
申请号：US10106481
申请日：2002-03-25
IPC分类号： C02F1461
CPC分类号： G21F9/04 , B01J47/08 , C02F1/001 , C02F1/4693 , C02F1/4695 , C02F2001/425 , C02F2001/46119 , C02F2101/006 , C02F2101/20 , G21F9/06 , G21F9/12 , G21F9/16
摘要： A system for decontamination of radioactive components includes an acidic decontamination solution which is exposed to radioactive components to remove a layer of contaminated material and an ion exchange cell which removes the radioactive contamination from the decontamination solution. The ion exchange cell has cathode, anode and central compartments. The decontamination solution flows into the central compartment and the radioactive cations in the solution are drawn towards the cathode. The acidity in the cathode chamber is controlled so that small radioactive metal particles are deposited on the cathode. A cathode solution flows over the cathode which removes the deposited radioactive particles. The cathode solution and small particles flow into a waste collection container where the metal particles settle to the bottom of the container where they are easily separated from the solution. The only waste product produced by the system are the small radioactive metal particles which are easily disposed of. All liquids used in the decontamination process may be recycled.
摘要翻译： 用于放射性成分去污的系统包括暴露于放射性组分以除去一层被污染物质的酸性去污溶液和从去污溶液中去除放射性污染物的离子交换池。 离子交换池具有阴极，阳极和中央隔室。 去污溶液流入中央隔室，溶液中的放射性阳离子被吸向阴极。 控制阴极室中的酸度使得小的放射性金属颗粒沉积在阴极上。 阴极溶液流过阴极，去除沉积的放射性粒子。 阴极溶液和小颗粒流入废物收集容器中，其中金属颗粒沉降到容器的底部，在容器的底部容易与溶液分离。 该系统产生的唯一废物是容易处理的小型放射性金属颗粒。 在去污过程中使用的所有液体都可以回收利用。
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6.发明授权
公开(公告)号：US5855790A
公开(公告)日：1999-01-05
申请号：US696858
申请日：1997-01-06
CPC分类号： B01J20/28016 , B01J20/28009 , B01J20/28026 , B01J20/28028 , B01J20/2803 , B01J47/007 , B03C1/01 , C02F1/488 , G21F9/12 , H01F1/112 , Y10T428/2965 , Y10T428/2967
摘要： Magnetic particles which comprise a core of a magnetic material surrounded by a mixture of a fibrous material and a solid binding agent. The particles may be embedded in a polymer resin which incorporates sites, which are selective for particular ions, to form composite magnetic resin particles. The composite magnetic resin particles may be used for the removal of pollutant ions from an aqueous solution in which they are contained.
摘要翻译： PCT No.PCT / US95 / 01543 Sec。 371日期1997年1月6日 102（e）日期1997年1月6日PCT提交1995年2月7日PCT公布。 出版物WO95 / 21011 日期：1995年8月10日磁性粒子，其包含由纤维材料和固体粘合剂的混合物包围的磁性材料的核心。 颗粒可以嵌入聚合物树脂中，该聚合物树脂包含对特定离子是选择性的位点以形成复合磁性树脂颗粒。 复合磁性树脂颗粒可用于从包含它们的水溶液中除去污染物离子。
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公开(公告)号：US20120088949A1
公开(公告)日：2012-04-12
申请号：US13267603
申请日：2011-10-06
摘要： A method of processing ion exchange resin radioactive waste, wherein the radioactive waste contains a plurality of fractions of radioactive waste based on density, which may include cation resin waste and anion resin waste, wherein at least one of the plurality of fractions comprises a total concentration of at least one radionuclide, including performing at least one of the following operations (i), (ii) or (iii): (i) separating the at least one of the plurality of fractions from the radioactive waste utilizing a moving freeboard; (ii) separating the radioactive waste into cation resin waste and anion resin waste; or (iii) removing at least a portion of the total concentration of the at least one radionuclide from: the radioactive waste; the at least one of the plurality of fractions separated by the moving freeboard; or at least one of the radioactive waste, the cation resin waste or the anion resin waste.
摘要翻译： 一种处理离子交换树脂放射性废物的方法，其中所述放射性废物基于密度包含多个放射性废物部分，其可包括阳离子树脂废物和阴离子树脂废物，其中所述多个馏分中的至少一个包含总浓度 包括执行以下操作（i），（ii）或（iii）中的至少一个：（i）利用移动的干舷将多个馏分中的至少一个与放射性废物分离; （ii）将放射性废物分解为阳离子树脂废物和阴离子树脂废物; 或（iii）从放射性废物中去除至少一种放射性核素的总浓度的至少一部分; 由移动的干舷分开的多个分数中的至少一个; 或放射性废物，阳离子树脂废物或阴离子树脂废物中的至少一种。
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公开(公告)号：US5852786A
公开(公告)日：1998-12-22
申请号：US849812
申请日：1997-07-07
摘要： A process for the decontamination of radioactive materials which process comprises the steps of: i) contacting the material to be decontaminated with a dilute carbonate containing solution in the presence of ion exchange particles which either contains or have a chelating function bond to them; and ii) separating the ion exchange particles from the dilute carbonate containing solution. The radioactive materials which are treated may be natural materials, such as soil, or man-made materials such as concrete or steel, which have been subjected to contamination.
摘要翻译： PCT No.PCT / GB95 / 02919 Sec。 371日期1997年7月7日 102（e）日期1997年7月7日PCT 1995年12月14日PCT PCT。 第WO96 / 19812号公报 日期1996年6月27日一种用于放射性物质去污的方法，该方法包括以下步骤：i）在离子交换颗粒存在下使待净化的材料与含稀碳酸盐溶液接触，所述离子交换颗粒包含或具有螯合官能键 给他们; 和ii）从含稀碳酸溶液中分离离子交换颗粒。 被处理的放射性物质可以是天然材料，例如土壤，或人造材料，例如混凝土或钢，已被污染。
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公开(公告)号：US5724668A
公开(公告)日：1998-03-03
申请号：US554454
申请日：1995-11-07
摘要： A process for removing undesirable material such as a radioactive contaminant from an underlying material. A solution containing fluoroboric acid and a material which affects oxidation potential (Eh) is contacted with the undesirable material to cause its removal. The material is removed from the fluoroboric acid solution by contacting the solution with a cation exchange resin and fluoroboric acid is regenerated in situ for continuous removal of undesirable material.
摘要翻译： 从下层材料中除去不需要的材料如放射性污染物的方法。 含有氟硼酸和影响氧化电位的材料（Eh）的溶液与不需要的材料接触以引起其去除。 通过使该溶液与阳离子交换树脂接触将氟化硼溶液从氟硼酸溶液中除去，氟硼酸就地再生，以连续除去不期望的物质。
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