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1. (WO2017099099) TREATMENT METHOD FOR RADIOACTIVE WASTE LIQUID COMPRISING RADIOACTIVE CESIUM AND RADIOACTIVE STRONTIUM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/099099 International Application No.: PCT/JP2016/086300
Publication Date: 15.06.2017 International Filing Date: 07.12.2016
IPC:
G21F 9/12 (2006.01) ,B01J 20/10 (2006.01) ,B01J 20/28 (2006.01)
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
F
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9
Treating radioactively contaminated material; Decontamination arrangements therefor
04
Treating liquids
06
Processing
12
by absorption; by adsorption; by ion-exchange
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
02
comprising inorganic material
10
comprising silica or silicate
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
28
characterised by their form or physical properties
Applicants:
株式会社荏原製作所 EBARA CORPORATION [JP/JP]; 東京都大田区羽田旭町11番1号 11-1, Haneda Asahi-cho, Ohta-ku, Tokyo 1448510, JP
日本化学工業株式会社 NIPPON CHEMICAL INDUSTRIAL CO., LTD. [JP/JP]; 東京都江東区亀戸9丁目11番1号 11-1, Kameido 9-chome, Koto-ku, Tokyo 1368515, JP
Inventors:
佐久間 貴志 SAKUMA, Takashi; JP
小松 誠 KOMATSU, Makoto; JP
出水 丈志 IZUMI, Takeshi; JP
宮部 慎介 MIYABE, Shinsuke; JP
木ノ瀬 豊 KINOSE, Yutaka; JP
菊池 政博 KIKUCHI, Masahiro; JP
坂本 剛 SAKAMOTO, Takeshi; JP
Agent:
小野 新次郎 ONO, Shinjiro; JP
松山 美奈子 MATSUYAMA, Minako; JP
鐘ヶ江 幸男 KANEGAE, Yukio; JP
Priority Data:
2015-24094110.12.2015JP
Title (EN) TREATMENT METHOD FOR RADIOACTIVE WASTE LIQUID COMPRISING RADIOACTIVE CESIUM AND RADIOACTIVE STRONTIUM
(FR) PROCÉDÉ DE TRAITEMENT DE DÉCHETS RADIOACTIFS LIQUIDES COMPRENANT DU CÉSIUM RADIOACTIF ET DU STRONTIUM RADIOACTIF
(JA) 放射性セシウム及び放射性ストロンチウムを含む放射性廃液の処理方法
Abstract:
(EN) In the present invention, waste liquid comprising radioactive cesium and radioactive strontium is fed, at a flow linear velocity (LV) of 1 m/h to 40 m/h inclusive and a space velocity (SV) of no higher than 200 h-1, through an adsorption tower filled to a layer height of 10 cm to 30 cm inclusive with a particulate adsorbent having a particle size of 250 μm to 1200 μm inclusive. The adsorbent includes: at least one crystalline silicotitanate selected from the crystalline silicotitanates represented by general formulas Na4Ti4Si3O16⋅nH2O, (NaxK(1-x))4Ti4Si3O16⋅mH2O, and K4Ti4Si3O16⋅lH2O (in the formulas, x indicates a number that is greater than 0 but less than 1, and n, m, and l each indicate a number from 0 to 8); and at least one titanate selected from the titanates represented by general formulas Na4Ti9O20⋅qH2O, (NayK(1-y))4Ti9O20⋅rH2O, and K4Ti9O20⋅tH2O (in the formulas, y indicates a number that is greater than 0 but less than 1, and q, r, and t each indicate a number from 0 to 10).
(FR) Dans le cadre de la présente invention, des déchets liquides qui comprennent du césium radioactif et du strontium radioactif sont fournis, à une vitesse linéaire d'écoulement (LV) de 1 m/h et de 40 m/h, inclus, et une vitesse spatiale (SV) non supérieure à 200 h-1, à travers une colonne d'adsorption remplie jusqu'à une hauteur de couche de 10 cm à 30 cm, inclus, avec un adsorbant particulaire qui présente une taille des particules de 250 µm à 1 200 µm, inclus. L'adsorbant comprend : au moins un silicotitanate cristallin sélectionné parmi les silicotitanates cristallins représentés par les formules générales Na4Ti4Si3O16⋅nH2O, (NaxK(1-x))4Ti4Si3O16⋅mH2O, et K4Ti4Si3O16⋅lH2O (dans les formules, x représente un nombre supérieur à 0 mais inférieur à 1, et n, m et l indiquent chacun un nombre de 0 à 8) ; et au moins un titanate sélectionné parmi les titanates représentés par les formules générales Na4Ti9O20⋅qH2O, (NayK(1-y))4Ti9O20⋅rH2O, et K4Ti9O20⋅tH2O (dans les formules, y indique un nombre supérieur à 0 mais inférieur à 1, et q, r et t indiquent chacun un nombre de 0 à 10).
(JA) 一般式:NaTiSi16・nHO、(Na(1-x)TiSi16・mHO及びKTiSi16・lHO(これらの式中、xは0超1未満の数を示し、n、m及びlはそれぞれ0~8の数を示す。)で表される結晶性シリコチタネートから選ばれる少なくとも一種と、一般式:NaTi20・qHO、(Na(1-y)Ti20・rHO及びKTi20・tHO(これらの式中、yは0超1未満の数を示し、q、r及びtはそれぞれ0~10の数を示す。)で表されるチタン酸塩から選ばれる少なくとも一種を含む粒径250μm以上1200μm以下の粒子状の吸着材を10cm以上30cm以下の層高で充填した吸着塔に、放射性セシウム及び放射性ストロンチウムを含む廃液を通水線流速(LV)1m/h以上40m/h以下、空間速度(SV)200h-1以下で通水する。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
CA3007460EP3385954US20190013107