公开(公告)号：US20020130085A1

公开(公告)日：2002-09-19

申请号：US10050332

申请日：2002-01-15

Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

Inventor： Grant Brian Douglas

IPC: B01D015/00

CPC classification number: B09C1/00 ,  B01J20/0207 ,  B01J20/0211 ,  B01J20/0288 ,  B01J20/0292 ,  B01J20/0296 ,  B01J20/04 ,  B01J20/046 ,  B01J20/12 ,  B01J20/14 ,  B01J20/18 ,  B09C1/08 ,  Y10S210/906 ,  Y10S210/911 ,  Y10S210/912 ,  Y10S210/913

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。