Electrochemical deionization
    41.
    发明授权
    Electrochemical deionization 失效
    电化学去离子

    公开(公告)号:US5584981A

    公开(公告)日:1996-12-17

    申请号:US426978

    申请日:1995-04-24

    Abstract: An electrochemical cell (50) for deionizsation utilizes electrochemical ion-exchange to remove ions from a feed solution. Under the influence of an electric field, ions are adsorbed into, are scored within and pass through a permeable layer (54, 64) of particulate ion-absorbing material and binder, the sheet being several millimeters thick. Water from the feed solution also permeates through the layer (54, 64), so a concentrated solution of the ions emerges from the rear (58) of the layer. The cell does not require separate sources of feed and eluant solutions and can be operated substantially continuously. In a modified cell (70) the flow path for the feed solution passes through a highly porous ion exchanger structure (77), which may be located between two such microporous layers (54, 64). Absorption in such a cell may be effective in the absence of an electric field, elution requiring the periodic application of the electric field.

    Abstract translation: 用于去离子的电化学电池(50)利用电化学离子交换来从进料溶液中除去离子。 在电场的影响下,离子吸附进入,并通过颗粒状离子吸收材料和粘结剂的渗透层(54,64)进行刻痕,该片材的厚度为几毫米。 来自进料溶液的水也渗透通过层(54,64),因此离子的浓缩溶液从层的后部(58)出现。 电池不需要单独的进料和洗脱液来源,并且可以基本连续地操作。 在改性细胞(70)中,进料溶液的流动路径通过高度多孔的离子交换结构(77),其可位于两个这样的微孔层(54,64)之间。 这种电池中的吸收在不存在电场的情况下可能是有效的,需要定期施加电场的洗脱。

    Demineralization apparatus and cloth for packing diluting chamber of the
demineralization apparatus
    42.
    发明授权
    Demineralization apparatus and cloth for packing diluting chamber of the demineralization apparatus 失效
    脱矿质装置和软化装置用的包装稀释室的布

    公开(公告)号:US5512173A

    公开(公告)日:1996-04-30

    申请号:US229299

    申请日:1994-04-18

    Abstract: The invention is a demineralization apparatus comprising an anode chamber disposed at one end of a vessel having an anode at the inside of the anode chamber. A cathode chamber is disposed at the other end of the vessel, having a cathode at the inside of the cathode chamber. At lease one diluting chamber and at least one concentrating chamber are located alternately between the anode chamber and the cathode chamber. The diluting chamber has an anion exchange membrane on the anode chamber side and a cation exchange membrane on the cathode chamber side. The diluting chamber has an inlet for water to be treated and an outlet for demineralized water. The concentrating chamber has an inlet for water and an outlet for ion-concentrated water. The diluting chamber contains a cloth comprising a mixture of strongly acidic cation exchange fibers, strongly basic anion exchange fibers and ionically inactive synthetic fibers. Preferably, the mixture contains from 20 to 70% by weight ionically inactive synthetic fibers.

    Abstract translation: 本发明是一种脱矿质装置,其包括设置在阳极室内部具有阳极的容器的一端的阳极室。 阴极室设置在容器的另一端,在阴极室的内部具有阴极。 至少一个稀释室和至少一个浓缩室交替位于阳极室和阴极室之间。 稀释室在阳极室侧具有阴离子交换膜,阴极室侧具有阳离子交换膜。 稀释室具有待处理水的入口和用于软化水的出口。 浓缩室具有用于水的入口和用于离子浓缩水的出口。 稀释室含有包含强酸性阳离子交换纤维,强碱性阴离子交换纤维和离子非活性合成纤维的混合物的布。 优选地,混合物含有20至70重量%的离子非活性合成纤维。

    Remediation of a bulk source by electropotential ion transport using a
host receptor matrix
    46.
    发明授权
    Remediation of a bulk source by electropotential ion transport using a host receptor matrix 失效
    通过使用宿主受体基质的电离子离子迁移来修复大量来源

    公开(公告)号:US5405509A

    公开(公告)日:1995-04-11

    申请号:US84065

    申请日:1993-06-30

    Abstract: Remediation of soil, concrete and groundwater using electropotential gradient induced migration of a target ion and immobilization and/or confinement of the target ion by a host receptor matrix (HRM). In addition to immobilizing and/or confining the target ion, the HRM can comprise a buffer or an ionizable species which releases an exchange ion during application of the electropotential gradient. The exchange ion, when less mobile than a (H.sup.+) ion or hydroxyl (OH.sup.-) ion, increases the efficiency of energy usage during decontamination. The exchange ion can also perform other tasks in the vicinity of the electrodes which improve the decontamination process. The host receptor matrix can comprise a material which is water impermeable and which has a low surface energy, such as a layer of polytetrafluoroethylene film. When such a material is used, the host receptor matrix can comprise a receptacle in which there is a liquid and/or solid composition. The liquid or solid composition can supply a predetermined ionic species to the bulk matrix and/or immobilize or isolate a target ion.

    Abstract translation: 使用电位梯度诱导目标离子的迁移并通过宿主受体基质(HRM)固定和/或限制靶离子来修复土壤,混凝土和地下水。 除了固定和/或限制目标离子之外,HRM可以包含在施加电位梯度期间释放交换离子的缓冲液或可电离物质。 当离子(H +)离子或羟基(OH))离子移动较少时,交换离子可提高净化过程中能量使用的效率。 交换离子还可以在电极附近执行改善去污过程的其它任务。 主体受体基质可以包含不透水且具有低表面能的材料,例如聚四氟乙烯膜层。 当使用这种材料时,主体受体基质可以包含其中存在液体和/或固体组合物的容器。 液体或固体组合物可以向本体基质提供预定的离子物质和/或固定或分离靶离子。

    Apparatus and process for treating water
    47.
    发明授权
    Apparatus and process for treating water 失效
    用于处理水的装置和方法

    公开(公告)号:US5364527A

    公开(公告)日:1994-11-15

    申请号:US984297

    申请日:1992-12-01

    Abstract: An apparatus for removing cations/anions from liquids including a container provided with an anode mounted centrally in the container, a cathode surrounding the anode and a layer of ion exchange material mounted between the cathode and anode, the cathode and a wall of the container form an outer space filled with water therebetween, the anode and cathode form a water-free inner space therebetween, the inner and outer spaces are connected with each other at opposite ends in order to generate a liquid circulation.

    Abstract translation: 一种用于从液体中除去阳离子/阴离子的装置,包括设置有容纳在中心的阳极的容器,围绕阳极的阴极和安装在阴极和阳极之间的离子交换材料层,阴极和容器壁的壁 在其间填充有水的外部空间,阳极和阴极在其间形成无水的内部空间,内部空间和外部空间在相对端彼此连接以产生液体循环。

    Process for purifying resins utilizing bipolar interface
    50.
    发明授权
    Process for purifying resins utilizing bipolar interface 失效
    使用双极界面净化树脂的方法

    公开(公告)号:US5211823A

    公开(公告)日:1993-05-18

    申请号:US717460

    申请日:1991-06-19

    CPC classification number: B01J49/0052 B01J47/08 C02F1/4695

    Abstract: Purified ion exchange resin particles are provided in a bifunctional electrodeionization step having anion depletion compartments containing anion exchange resin particles which are purified and cation depletion compartments containing cation exchange resin particle which are purified as well as ion concentration compartments. The bifunctional electrodeionization step for purifying resin particles is conducted under conditions to disassociate water into hydrogen ions and hydroxyl ions. Purified water having a purity of at least 1 megohm-cm is introduced into the anion depletion compartment and cation depletion compartments and water for accepting ionic impurities is introduced into the ion concentration compartments. The purified water is produced in an initial purification step which also can be an electrodeionization step. The water effluent from the anion depletion compartments and cation depletion compartments is recycled either to an initial water purification step or to the inlets of the anion depletion compartments or cation depletion compartments. The anion depletion compartments include an anion permeable membrane and a bifunctional interface. The cation depletion compartments include a cation permeable membrane and the bifunctional interface.

    Abstract translation: 纯化的离子交换树脂颗粒提供在具有含有阴离子交换树脂颗粒的阴离子消耗隔室的双功能电去电离步骤中,所述阴离子交换树脂颗粒是纯化的,并且含有纯化的阳离子交换树脂颗粒和离子浓度隔室。 在将水分解成氢离子和羟基离子的条件下进行用于净化树脂颗粒的双功能电去电离步骤。 将净化至少1兆欧姆厘米的水引入阴离子耗尽室,将阳离子消耗隔间和用于接受离子杂质的水引入离子浓度隔室中。 纯化水在初始纯化步骤中产生,其也可以是电去电离步骤。 来自阴离子消耗隔间和阳离子消耗室的水流出物被循环至初始水净化步骤或阴离子消耗隔室或阳离子消耗隔室的入口。 阴离子消耗隔室包括阴离子渗透膜和双功能界面。 阳离子消耗隔室包括阳离子可渗透膜和双功能界面。

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