-
1.发明申请公开(公告)号：US20190006055A1
公开(公告)日：2019-01-03
申请号：US16060323
申请日：2016-12-06
发明人： Takashi SAKUMA , Makoto KOMATSU , Takeshi IZUMI , Shinsuke MIYABE , Yutaka KINOSE , Kenta KOZASU , Eiji NOGUCHI , Takeshi SAKAMOTO
摘要： A treatment method of radioactive waste water containing radioactive cesium and radioactive strontium, comprising passing the radioactive waste water containing radioactive cesium and radioactive strontium through an adsorption column packed with an adsorbent for cesium and strontium, to adsorb the radioactive cesium and radioactive strontium on the adsorbent, wherein the adsorbent for cesium or strontium comprises a crystalline silicotitanate having a crystallite diameter of 60 Å or more and having a half width of 0.9° or less of the diffraction peak in the lattice plane (100), the crystalline silicotitanate represented by the general formula: A4Ti4Si3O16.nH2O.
-
公开(公告)号：US20190009245A1
公开(公告)日：2019-01-10
申请号：US16065386
申请日：2016-12-08
发明人： Takashi SAKUMA , Makoto KOMATSU , Takeshi IZUMI , Shinsuke MIYABE , Yutaka KINOSE , Kiyoshi SATOU , Kenta KOZASU , Mari TOKUTAKE , Takeshi SAKAMOTO , Kaori SUGIHARA
摘要： An adsorbent capable of adsorbing radioactive antimony, radioactive iodine and radioactive ruthenium, the adsorbent containing cerium(IV) hydroxide in a particle or granular form having a particle size of 250 μm or more and 1200 μm or less; and a treatment method of radioactive waste water containing radioactive antimony, radioactive iodine and radioactive ruthenium, the treatment method comprising passing the radioactive waste water containing radioactive antimony, radioactive iodine and radioactive ruthenium through an adsorption column packed with the adsorbent, to adsorb the radioactive antimony, radioactive iodine and radioactive ruthenium on the adsorbent, wherein the absorbent is packed to a height of 10 cm or more and 300 cm or less of the adsorption column, and wherein the radioactive waste water is passed through the adsorption column at a linear velocity (LV) of 1 m/h or more and 40 m/h or less and a space velocity (SV) of 200 h−1 or less.
-
3.发明申请公开(公告)号：US20190013107A1
公开(公告)日：2019-01-10
申请号：US16060636
申请日：2016-12-07
发明人： Takashi SAKUMA , Makoto KOMATSU , Takeshi IZUMI , Shinsuke MIYABE , Yutaka KINOSE , Masahiro KIKUCHI , Takeshi SAKAMOTO
摘要： The present invention provides a treatment method of radioactive waste water containing radioactive cesium and radioactive strontium, comprising passing the radioactive waste water containing radioactive cesium and radioactive strontium through an adsorption column packed with an adsorbent for cesium and strontium, to adsorb the radioactive cesium and radioactive strontium on the adsorbent, wherein the adsorbent for cesium and strontium comprises: at least one selected from crystalline silicotitanates represented by the general formulas: Na4Ti4Si3O16.nH2O, (NaxK(1-x))4Ti4Si3O16.mH2O and K4Ti4Si3O16.lH2O wherein x represents a number of more than 0 and less than 1, and n, m and l each represents a number of 0 to 8; and at least one selected from titanate salts represented by the general formulas: Na4Ti9O20.qH2O, (NayK(1-y))4Ti9O20.rH2O and K4Ti9O20.tH2O wherein y represents a number of more than 0 and less than 1, and q, r and t each represents a number of 0 to 10; wherein the adsorbent is a granular adsorbent having a grain size of 250 μm or more and 1200 μm or less, wherein the absorbent is packed to a height of 10 cm or more and 300 cm or less in the adsorption column, and wherein the radioactive waste water is passed through the adsorption column at a linear velocity (LV) of 1 m/h or more and 40 m/h or less and a space velocity (SV) of 200 h−1 or less.
-
-
搜索结果
3 条记录 (耗时 0.015 秒)
