Water treatment process
    46.
    发明申请
    Water treatment process 审中-公开
    水处理工艺

    公开(公告)号:US20050224413A1

    公开(公告)日:2005-10-13

    申请号:US11150085

    申请日:2005-06-10

    CPC classification number: B01J20/28009 B01J47/016 B01J49/00 C02F1/42 C02F1/488

    Abstract: The present invention relates to water treatment, in particular to a process for the removal of dissolved organic carbon from water. The process includes the following steps, adding an ion-exchange resin to water containing a contaminant such as dissolved organic carbon, dispersing the resin in the contaminated water to enable adsorption of the dissolved organic carbon onto the resin, and separating the resin loaded with contaminant from the water. In a preferred embodiment the process employs a magnetic ion-exchange resin.

    Abstract translation: 本发明涉及水处理,特别涉及从水中除去溶解的有机碳的方法。 该方法包括以下步骤:将离子交换树脂添加到含有溶解有机碳的污染物的水中,将树脂分散在污染的水中,以使溶解的有机碳吸附到树脂上,并分离负载有污染物的树脂 从水中。 在优选实施方案中,该方法采用磁性离子交换树脂。

    METHOD AND APPARATUS FOR PURIFYING NON-AQUEOUS LIQUID, AND ION EXCHANGE RESIN PRODUCTION METHOD AND PRETREATMENT APPARATUS

    公开(公告)号:US20240238775A1

    公开(公告)日:2024-07-18

    申请号:US18284356

    申请日:2022-02-17

    CPC classification number: B01J47/016 B01J39/05 B01J49/60

    Abstract: Provided is a method for purifying a nonaqueous liquid in a simple and cost-efficient manner, without requiring a large amount of the nonaqueous liquid, by using an ion exchange resin having a reduced water content. The method for purifying a nonaqueous liquid using an ion exchange resin includes bringing the ion exchange resin into contact with a nonaqueous liquid for pretreatment having a relative permittivity at 25° C. of 20 or higher and bringing the ion exchange resin after the pretreatment into contact with a nonaqueous liquid to be purified, wherein the relative permittivity at 25° C. of the nonaqueous liquid for pretreatment is greater than the relative permittivity at 25° C. of the nonaqueous liquid to be purified, and the concentration of metals to be reduced in the nonaqueous liquid for pretreatment is 5 μg/L or less.

    Ion exchange resin transportation and storage

    公开(公告)号:US11623212B2

    公开(公告)日:2023-04-11

    申请号:US17241240

    申请日:2021-04-27

    Abstract: Methods of stabilizing virgin ion exchange resin material are provided. The methods include rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a liquid impermeable compartment of a gas impermeable vessel and hermetically sealing the vessel. The methods include rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a gas impermeable vessel, introducing an oxygen scavenging material into the gas impermeable vessel, and hermetically sealing the vessel. A method of facilitating water treatment in a site in need thereof by providing rinsed virgin ion exchange resin material in deoxygenated water positioned in a liquid impermeable compartment of a gas impermeable vessel is also provided. A vessel containing deoxygenated water and virgin ion exchange resin material and an oxygen scavenging material is also provided.

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