Enhancement of soil and groundwater remediation
    1.
    发明授权
    Enhancement of soil and groundwater remediation 失效
    加强土壤和地下水的修复

    公开(公告)号:US06265205B1

    公开(公告)日:2001-07-24

    申请号:US09013729

    申请日:1998-01-27

    IPC分类号: C12S1300

    摘要: This invention is a novel method for bioremediation of soil and ground water based on supplying hydrogen (H2) to naturally occurring anaerobic bacteria in the soil or ground water. These organisms use the hydrogen as an electron donor to perform adventitious chemical reactions including the dehalogenation of chlorinated organic compounds. The hydrogen can be supplied from a number of sources, including; stored hydrogen, hydrogen generated above ground on site, either electrochemically or by reforming a fuel source, or by electrolysis in the soil, either using an electric current supplied from above ground or an electric current generated by the corrosion of metal particles in the ground. For the last of these cases, a novel multi-metallic particle especially useful for the generation of hydrogen, and a method for making these particles, are disclosed.

    摘要翻译: 本发明是一种基于向土壤或地下水中的天然存在的厌氧细菌供应氢(H2)的土壤和地下水生物修复的新方法。 这些生物体使用氢作为电子给体来进行不定期的化学反应,包括氯化有机化合物的脱卤。 氢可以从许多来源提供,包括: 储存的氢气,现场地面上产生的氢气,电化学或通过燃料源重整,或通过土壤中的电解,使用从地面提供的电流或由地下金属颗粒的腐蚀产生的电流。 对于这些情况中的最后一种,公开了特别可用于产生氢的新型多金属颗粒和制造这些颗粒的方法。

    Reactive decontamination formulation
    7.
    发明授权
    Reactive decontamination formulation 失效
    反应性去污剂配方

    公开(公告)号:US06569353B1

    公开(公告)日:2003-05-27

    申请号:US09096435

    申请日:1998-06-11

    IPC分类号: C09K300

    摘要: The present invention provides a universal decontamination formulation and method for detoxifying chemical warfare agents (CWA's) and biological warfare agents (BWA's) without producing any toxic by-products, as well as, decontaminating surfaces that have come into contact with these agents. The formulation includes a sorbent material or gel, a peroxide source, a peroxide activator, and a compound containing a mixture of KHSO5, KHSO4 and K2SO4. The formulation is self-decontaminating and once dried can easily be wiped from the surface being decontaminated. A method for decontaminating a surface exposed to chemical or biological agents is also disclosed.

    摘要翻译: 本发明提供了在不产生任何有毒副产物的情况下对化学战剂(CWA)和生物战剂(BWA)进行解毒的通用去污配方和方法,以及与这些试剂接触的表面去污。 制剂包括吸附剂材料或凝胶,过氧化物源,过氧化物活化剂和含有KHSO 5,KHSO 4和K 2 SO 4的混合物的化合物。 制剂是自净化的,一旦干燥即可从被去污的表面容易地擦去。 还公开了暴露于化学或生物制剂的表面去污的方法。

    Bipolar membranes with fluid distribution passages
    8.
    发明授权
    Bipolar membranes with fluid distribution passages 失效
    具有流体分配通道的双极膜

    公开(公告)号:US5961796A

    公开(公告)日:1999-10-05

    申请号:US868617

    申请日:1997-06-03

    摘要: The present invention provides a bipolar membrane and methods for making and using the membrane. The bipolar membrane comprises a cation-selective region, an anion-selective region, an interfacial region between the anion-selective region and the cation-selective region, and means for delivering fluid directly into the interfacial region. The means for delivering fluid includes passages that may comprise a fluid-permeable material, a wicking material, an open passage disposed within the membrane or some combination thereof. The passages may be provided in many shapes, sizes and configurations, but preferably deliver fluid directly to the interfacial region so that the rate of electrodialysis is no longer limited by the diffusion of fluid through the cation- or anion-selective regions to the interfacial region.

    摘要翻译: 本发明提供了一种双极膜及其制造和使用方法。 双极膜包括阳离子选择性区域,阴离子选择性区域,阴离子选择区域和阳离子选择性区域之间的界面区域,以及用于将流体直接输送到界面区域的装置。 用于输送流体的装置包括可包括流体可渗透材料,芯吸材料,设置在膜内的开放通道或其某些组合的通道。 通道可以以许多形状,尺寸和构型提供,但优选将流体直接输送到界面区域,使得电渗析的速率不再受流体通过阳离子或阴离子选择性区域扩散到界面区域的限制 。