公开(公告)号：US09358522B2

公开(公告)日：2016-06-07

申请号：US13667797

申请日：2012-11-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seok Won Hong ,  Sang Hyup Lee ,  Jae Woo Choi ,  Seung Gun Chung

IPC: B01J20/18 ,  B01J20/28 ,  B01J20/22 ,  B01J20/285 ,  B01J20/02 ,  B01J20/24 ,  B01J20/06 ,  B01J20/30 ,  B01J20/32 ,  C02F1/28 ,  C02F101/20

CPC classification number: B01J20/28019 ,  B01J20/0229 ,  B01J20/06 ,  B01J20/18 ,  B01J20/22 ,  B01J20/223 ,  B01J20/24 ,  B01J20/2803 ,  B01J20/285 ,  B01J20/3014 ,  B01J20/3078 ,  B01J20/3085 ,  B01J20/3204 ,  B01J20/3257 ,  C02F1/281 ,  C02F1/286 ,  C02F1/288 ,  C02F2101/20

Abstract: A composite medium and method thereof for simultaneous removal of cationic and anionic heavy metals are provided to remove cationic and anionic heavy metals effectively. The method includes dissolving sodium alginate powder into deionized water to provide an alginate solution, and introducing amine group-supported mesoporous iron oxide and synthetic zeolite into the alginate solution and kneading the resultant mixture. The method also includes adding the alginate solution mixed with the mesoporous iron oxide and synthetic zeolite dropwise to an aqueous calcium chloride solution so that each drop of alginate solution is cured to form a bead-like composite medium, and vacuum drying the bead-like composite medium to remove water present in the composite medium, while the mesoporous iron oxide and synthetic zeolite are moved from the inside of the composite medium toward the surface of the composite medium.

Abstract translation: 提供用于同时去除阳离子和阴离子重金属的复合介质及其方法以有效地去除阳离子和阴离子重金属。 该方法包括将藻酸钠粉末溶解在去离子水中以提供藻酸盐溶液，并将胺基担载的介孔氧化铁和合成沸石引入到藻酸盐溶液中并捏合所得混合物。 该方法还包括将中孔氧化铁和合成沸石混合的藻酸盐溶液滴加到氯化钙水溶液中，使每一滴藻酸盐溶液固化形成珠状复合介质，真空干燥珠状复合材料 介质以除去存在于复合介质中的水，同时介孔氧化铁和合成沸石从复合介质的内部朝向复合介质的表面移动。