Anion absorbent and production method thereof, and water treatment method
    113.
    发明申请
    Anion absorbent and production method thereof, and water treatment method 审中-公开
    阴离子吸收剂及其制备方法和水处理方法

    公开(公告)号:US20060019820A1

    公开(公告)日:2006-01-26

    申请号:US11070007

    申请日:2005-03-03

    Abstract: An anion absorbent comprising sintered clay of porous structure and a rare earth compound supported on the sintered clay. The anion absorbent is produced by a production method of an anion absorbent comprising a mixing step of mixing clay with an additive for making the clay porous, a sintering step of sintering a mixture obtained in the mixing step, and a supporting step of supporting a rare earth compound on the clay before the mixing step and/or on a sintered matter after the sintering step. A water treatment method comprising a step of bringing the anion absorbent into contact with water to be treated at a predetermined pH so as to absorb and thus remove anions in the water to be treated, and a step of bringing the absorbent, which absorbed anions, into contact with solution having pH, which is different from the aforementioned predetermined pH, so as to desorb anions from the absorbent.

    Abstract translation: 一种阴离子吸收剂,包括多孔结构的烧结粘土和负载在烧结粘土上的稀土化合物。 阴离子吸收剂通过阴离子吸收剂的制造方法制造,该阴离子吸收剂包括混合粘土与用于制造多孔粘土的添加剂的混合步骤,烧结混合步骤中获得的混合物的烧结步骤以及支持稀土 在混合步骤之前和/或在烧结步骤之后的烧结物上混合土壤化合物。 一种水处理方法,包括使阴离子吸收剂在预定pH下与待处理的水接触以吸收并因此除去待处理水中的阴离子的步骤,以及将吸收的阴离子的吸收剂, 与不同于上述预定pH的pH的溶液接触,以便从吸收剂中解吸阴离子。

    Remediation material and remediation process for sediments
    120.
    发明申请
    Remediation material and remediation process for sediments 审中-公开
    修复材料和沉积物的修复过程

    公开(公告)号:US20020130085A1

    公开(公告)日:2002-09-19

    申请号:US10050332

    申请日:2002-01-15

    Abstract: A material and method for removal of environmental oxyanions (and especially phosphates), the material comprising a substrate such as a clay modified with complexing elements selected from Group IIIB, Group IVB, and lanthanide elements (or a mixture of such elements). The resultant modified substrate can bind oxyanions and make them unavailable for utilisation in the environment; in the case of phosphates, by algae and the like. The method includes forming a capping of material at the sediment/water interface, applying the material in the form of pellets at the sediment/water interface, or injecting the pellets into the sediment.

    Abstract translation: 一种用于去除环境含氧阴离子(特别是磷酸盐)的材料和方法,该材料包括诸如由IIIB族,IVB族和镧系元素(或这些元素的混合物)中选择的络合元素改性的粘土等底物。 所得到的改性底物可以结合含氧阴离子并使其不能在环境中使用; 在磷酸盐的情况下,通过藻类等。 该方法包括在沉淀/水界面处形成材料封盖,在沉淀/水界面处施加颗粒形式的材料,或将颗粒注入沉淀物中。

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