Precipitate hydrolysis process for the removal of organic compounds from
nuclear waste slurries
    1.
    发明授权
    Precipitate hydrolysis process for the removal of organic compounds from nuclear waste slurries 失效
    用于从核废料浆中去除有机化合物的沉淀水解过程

    公开(公告)号:US4840765A

    公开(公告)日:1989-06-20

    申请号:US018389

    申请日:1987-02-25

    CPC classification number: G21F9/007

    Abstract: A process for removing organic compounds from a nuclear waste slurry comprising reacting a mixture of radioactive waste precipitate slurry and an acid in the presence of a catalytically effective amount of a copper (II) catalyst whereby the organic compounds in the precipitate slurry are hydrolyzed to form volatile organic compounds which are separated from the reacting mixture. The resulting waste slurry, containing less than 10 percent of the orginal organic compounds, is subsequently blended with high level radioactive sludge and transferred to a virtrification facility for processing into borosilicate glass for long-term storage.

    Abstract translation: 一种从核废料浆料中除去有机化合物的方法,包括在催化有效量的铜(II)催化剂的存在下使放射性废物沉淀物浆料和酸的混合物反应,由此使沉淀物浆料中的有机化合物水解形成 与反应混合物分离的挥发性有机化合物。 随后将含有少于10%的原始有机化合物的所得废浆与高级放射性污泥混合并转移到用于长期储存的硼硅酸盐玻璃处理设备中。

    Groundwater remediation system
    2.
    发明授权
    Groundwater remediation system 失效
    地下水补救制度

    公开(公告)号:US06818136B1

    公开(公告)日:2004-11-16

    申请号:US10310223

    申请日:2002-12-05

    Applicant: James C. Marek

    Inventor: James C. Marek

    CPC classification number: B09C1/002 C02F2103/06

    Abstract: A process where gas bubbles are produced under a partial vacuum and are dynamically agitated creating a vortex that allows for homogenization of the gas desired for dissolution into the affected aquifer. The technology is applied through installation of the apparatus into treatment wells. The treatment wells are installed as stand-alone wells where hydrogeological conditions are conductive, i.e. sandy aquifers, fractured bedrock aquifers, or in treatment cells where hydrogeological conditions are less conductive, i.e. saturated sediments that are clay rich. The system does not use a compressed gas, compressed air source, or forced air/gas through the use of compressors or blowers. Rather, it uses cavitation to produce a slight vacuum to draw gas or air through a snorkel apparatus that is attached to the gas mixing chamber of the unit. The unit is installed so that it is submerged in the treatment well below the water table. The gas is expelled under a slight vacuum from the base of the unit through a perforated base plate. A turbine is turned at a high rate of rotations per minute below the perforated plate, and causes the cavitation and vortex dynamics. This produces very small gas bubbles resulting in large gas surface exposure to the groundwater being treated. The gas bubbles experience a long retention time due to their small size and from the vortex produced by the system, which keeps the bubbles in suspension. The vortex dynamics provides a constant and consistent flux of dissolved gas to the aquifer. This translates to an efficient, energy saving system that conserves the amount of gas needed to produce the dissolved gas levels desired.

    Abstract translation: 一种在部分真空下产生气泡并被动态搅动的过程,产生涡流,允许将所需的气体均匀化以溶解到受影响的含水层中。 该技术通过将设备安装到处理井中来应用。 处理井作为独立的井安装,其中水文地质条件是导电的,即沙质含水层,断裂的基岩含水层,或在水文地质条件较差导电的处理池中,即富含粘土的饱和沉积物。 该系统不使用压缩气体,压缩空气源或强制空气/气体通过使用压缩机或鼓风机。 相反,它使用气蚀产生轻微的真空,以通过连接到单元的气体混合室的通气装置吸入气体或空气。 该装置安装成使其浸没在水位下方的处理井中。 气体在轻微的真空下通过穿孔底板从单元的底部排出。 涡轮机在多孔板下方以每分钟高的转速转动,并引起空化和涡流动力学。 这产生非常小的气泡,导致大量的气体表面暴露于被处理的地下水。 气泡由于体积小而且由系统产生的涡流而经历长时间的停留时间,保持气泡悬浮。 涡流动力学为含水层提供了稳定和一致的溶解气体通量。 这转化为一种高效的节能系统,可节省产生所需溶解气体水平所需的气体量。

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