Decontamination and/or cleaning of fragile materials
    1.
    发明授权
    Decontamination and/or cleaning of fragile materials 失效
    去污和/或清洁脆性材料

    公开(公告)号:US07910054B1

    公开(公告)日:2011-03-22

    申请号:US11738489

    申请日:2007-04-21

    申请人: Robert Kaiser

    发明人: Robert Kaiser

    IPC分类号: A61L2/16

    摘要: In one embodiment, contaminates are removed from a material by contacting an activated carbon fabric wetted with a solvent with the surface of the material. The activated carbon fabric is maintained in contact with the surface in a substantially vapor-tight environment to allow the solvent to dissolve the contaminants, the contaminates to diffuse in the solvent, and the contaminates to be adsorbed by the activated carbon fabric. Thereafter, the activated carbon fabric containing the contaminates is removed and the any remaining solvent is allowed to evaporate. In another embodiment, contaminates are removed from a material by maintaining a solvent wetted fabric in contact with the surface of a material, while exposing at least an upper face of the fabric to a surrounding environment to promote evaporation of the solvent. The evaporation of the solvent from the upper face migrates contaminates from the surface into the fabric where they are contained.

    摘要翻译: 在一个实施方案中,通过使润湿了溶剂的活性炭织物与材料的表面接触,从材料中除去污染物。 活性炭织物在基本上不透气的环境中与表面保持接触,以使溶剂溶解污染物,污染物在溶剂中扩散,污染物被活性炭织物吸附。 此后,除去含有污染物的活性炭织物,并使任何残留的溶剂蒸发。 在另一个实施方案中,通过将溶剂润湿的织物与材料的表面接触,同时将织物的至少上表面暴露于周围环境以促进溶剂的蒸发,从材料中除去污染物。 溶剂从上表面的蒸发将污染物从表面迁移到织物中,在那里它们被包含。

    Method and apparatus for decontamination of sensitive equipment

    公开(公告)号:US07163589B2

    公开(公告)日:2007-01-16

    申请号:US10154488

    申请日:2002-05-23

    申请人: Robert Kaiser

    发明人: Robert Kaiser

    IPC分类号: B08B7/04 B08B3/12

    CPC分类号: B08B3/12 B08B3/02

    摘要: Ultrasonic solvent cleaning processes can effectively decontaminate sensitive equipment. The disclosed decontamination liquids meet the following criteria: a. It is compatible with a wide range of sensitive equipment—the performance of electronic and optical equipment is not affected by immersion in decontamination liquid. b. The principal chemical warfare agents of concern are sufficiently soluble in decontamination liquid for it to be an effective decontamination medium. c. The principal chemical warfare agents of concern are quantitatively removed from solution in decontamination liquid by activated carbon. When agent contaminated decontamination liquid is passed through a bed of activated carbon, the agent adsorbs onto the activated carbon, resulting in agent free decontamination liquid that can be recycled and reused. d. It is nonflammable, nontoxic, and environmentally acceptable. Ultrasonic agitation provides effective mass and physical transfer of contaminants from the surfaces of the objects being decontaminated to the bulk of the decontamination liquid.Contaminant removal occurs in three steps: removal of the contaminant from the surface of the part being processed, transfer of the dissolved or suspended contaminant into the bulk of the decontamination liquid in the immersion sump, and then removal of the dissolved contaminant by activated carbon adsorption, or suspended contaminant by filtration.Biological contaminants are also effectively removed or inactivated by immersion and sonication in decontamination fluid or solutions of a soluble surfactant in decontamination fluid.Activated carbon beds and filters that come into contact with contaminated liquid can be contained in commercially available housings that shield the system operator from any contained toxic contents. These sealable containers, and their contents, can be destroyed by standard methods, such as incineration.Spectrographic fluorimetry can detect extremely low levels (of the order of 10 ppt) of fluorescent dyes dissolved in decontamination fluid.Decontamination of sensitive equipment in decontamination fluid can be performed in commercially available ultrasonic vapor degreasers.