JP6779249B2 - 過酸化水素を用いた粘土鉱物中のセシウムの除去方法及び処理装置 - Google Patents
過酸化水素を用いた粘土鉱物中のセシウムの除去方法及び処理装置 Download PDFInfo
- Publication number
- JP6779249B2 JP6779249B2 JP2018080169A JP2018080169A JP6779249B2 JP 6779249 B2 JP6779249 B2 JP 6779249B2 JP 2018080169 A JP2018080169 A JP 2018080169A JP 2018080169 A JP2018080169 A JP 2018080169A JP 6779249 B2 JP6779249 B2 JP 6779249B2
- Authority
- JP
- Japan
- Prior art keywords
- cesium
- clay
- hydrogen peroxide
- clay mineral
- contaminated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910052792 caesium Inorganic materials 0.000 title claims description 134
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims description 133
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 title claims description 131
- 239000002734 clay mineral Substances 0.000 title claims description 106
- 238000000034 method Methods 0.000 title claims description 28
- 150000001768 cations Chemical class 0.000 claims description 55
- 238000006243 chemical reaction Methods 0.000 claims description 47
- 239000004927 clay Substances 0.000 claims description 32
- 238000002156 mixing Methods 0.000 claims description 18
- 239000011229 interlayer Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 14
- 239000011707 mineral Substances 0.000 claims description 14
- 239000007864 aqueous solution Substances 0.000 claims description 13
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 12
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 11
- 229910052900 illite Inorganic materials 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 claims description 8
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 7
- 229910021647 smectite Inorganic materials 0.000 claims description 6
- 229910052902 vermiculite Inorganic materials 0.000 claims description 6
- 239000010455 vermiculite Substances 0.000 claims description 6
- 235000019354 vermiculite Nutrition 0.000 claims description 6
- 229910052626 biotite Inorganic materials 0.000 claims description 5
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052627 muscovite Inorganic materials 0.000 claims description 5
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001422 barium ion Inorganic materials 0.000 claims description 3
- 229910001424 calcium ion Inorganic materials 0.000 claims description 3
- VNSBYDPZHCQWNB-UHFFFAOYSA-N calcium;aluminum;dioxido(oxo)silane;sodium;hydrate Chemical compound O.[Na].[Al].[Ca+2].[O-][Si]([O-])=O VNSBYDPZHCQWNB-UHFFFAOYSA-N 0.000 claims description 2
- 239000000701 coagulant Substances 0.000 claims description 2
- 229910000271 hectorite Inorganic materials 0.000 claims description 2
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 229910000273 nontronite Inorganic materials 0.000 claims description 2
- 229910000276 sauconite Inorganic materials 0.000 claims description 2
- 229910052629 lepidolite Inorganic materials 0.000 claims 2
- 229910052628 phlogopite Inorganic materials 0.000 claims 2
- 239000000376 reactant Substances 0.000 claims 1
- 238000003795 desorption Methods 0.000 description 26
- 239000010410 layer Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 14
- 239000002689 soil Substances 0.000 description 12
- 238000005341 cation exchange Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 238000005342 ion exchange Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 3
- 229910004283 SiO 4 Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- -1 cesium ions Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 230000004931 aggregating effect Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000002522 swelling effect Effects 0.000 description 2
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- LDXJRKWFNNFDSA-UHFFFAOYSA-N 2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound C1CN(CC2=NNN=C21)CC(=O)N3CCN(CC3)C4=CN=C(N=C4)NCC5=CC(=CC=C5)OC(F)(F)F LDXJRKWFNNFDSA-UHFFFAOYSA-N 0.000 description 1
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010336 energy treatment Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D17/00—Rubidium, caesium or francium compounds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/10—Obtaining alkali metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/12—Processing by absorption; by adsorption; by ion-exchange
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/16—Processing by fixation in stable solid media
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/30—Processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Soil Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Food Science & Technology (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Processing Of Solid Wastes (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Description
セシウムにより汚染されたハイドロバイオタイト(Hydrobiotite)と過酸化水素(H2O2)35%水溶液とを、1:100の固液比で常温で混合して粘土鉱物の層間を分離した後、塩化マグネシウム(MgCl2)0.1Mを添加し、常温で一緒に撹拌して約24時間反応させた。
上記実施例1で、セシウムにより汚染された粘土の層間拡張及び2価陽イオンによるセシウムの脱着特性を、X−線回折(X−ray diffraction)分析を通じて確認した。実験に使用された粘土は、膨脹性と非膨脹性が混在されたハイドロバイオタイト(Hydrobiotite)であって、過酸化水素及び2価陽イオンの処理前には、2θ=7.4゜(d=1.2nm)で最も強いピーク(peak)を示し、膨脹性粘土鉱物であるバーミキュライト(vermiculite)の特性ピークである2θ=6.2゜(d=1.4nm)と、非膨脹性粘土鉱物であるバイオタイト(biotite)の特性ピークである2θ=8.7゜(d=1.0nm)とで弱く現われた。
粘土鉱物からセシウムを除去するにおいて、過酸化水素の濃度または陽イオンの種類によるセシウムの脱着効果を確認するため、上記実施例と同一の方法でセシウム除去実験を行い、下記のように条件を異ならせてセシウムの脱着効果を比較した。
比較例1−2:過酸化水素(H2O2)50%水溶液のみ混合
比較例1−3:過酸化水素(H2O2)35%水溶液を混合した後、マグネシウムイオンの代わりに1価陽イオンであるアンモニウムイオン(NH4Cl)0.1Mを添加
多様な粘土鉱物で過酸化水素を用いたセシウムの脱着効果を確認するために、膨脹性粘土の一種であるモンモリロナイト(montmorillonite)を対象として実験した。上記実施例1と同一の方法でセシウム除去実験を行い、ハイドロバイオタイトの代わりにセシウムにより汚染されたモンモリロナイトを用いた。
比較例2−2:過酸化水素(H2O2)50%水溶液のみ混合
比較例2−3:過酸化水素(H2O2)35%水溶液を混合した後、マグネシウムイオンの代わりに1価陽イオンであるアンモニウムイオン(NH4Cl)0.1Mを添加
多様な粘土鉱物で過酸化水素を用いたセシウムの脱着効果を確認するために、非膨脹性粘土の一種であるイライト(illite)を対象として実験した。上記実施例1と同一の方法でセシウム除去実験を行い、ハイドロバイオタイトの代わりにセシウムにより汚染されたイライトを用いた。
比較例3−2:過酸化水素(H2O2)50%水溶液のみ混合
比較例3−3:過酸化水素(H2O2)35%水溶液を混合した後、マグネシウムイオンの代わりに1価陽イオンであるアンモニウムイオン(NH4Cl)0.1Mを添加
2:第2反応部
3:凝集部
4:固液分離部
5:後処理部
Claims (14)
- (a)セシウムにより汚染された粘土鉱物に過酸化水素を混合して層間拡張を起こすステップ、
(b)前記セシウムとイオン交換可能な陽イオンで前記粘土鉱物からセシウムを脱着するステップ、及び
(c)前記脱着されたセシウムを粘土鉱物から分離するステップを含み、
前記(b)ステップにおいて、前記陽イオンは2価陽イオンを含むことを特徴とする、
粘土鉱物中のセシウムの除去方法。 - 前記(a)ステップで、粘土鉱物は、2:1層状構造を有する粘土鉱物を含むことを特徴とする、
請求項1に記載の粘土鉱物中のセシウムの除去方法。 - 前記(a)ステップで、粘土鉱物は、ハイドロバイオタイト(hydrobiotite);スメクタイト(smectite)系鉱物;バーミキュライト(vermiculite);雲母(mica)系鉱物;及びイライト(illite)からなる群より選択される一つ以上を含むことを特徴とする、
請求項1に記載の粘土鉱物中のセシウムの除去方法。 - 前記スメクタイト(smectite)系鉱物は、モンモリロナイト(montmorillonite)、バイデライト(beidellite)、ノントロナイト(nontronite)、ヘクトライト(hectorite)及びソーコナイト(sauconite)からなる群より選択される一つ以上を含むことを特徴とする、
請求項3に記載の粘土鉱物中のセシウムの除去方法。 - 前記雲母(mica)系鉱物は、バイオタイト(biotite、黒雲母)、マスコバイト(muscovite、白雲母)、フロゴパイト(phlogopite、金雲母)及びレピドライト(lepidolite、リチア雲母)からなる群より選択される一つ以上を含むことを特徴とする、
請求項3に記載の粘土鉱物中のセシウムの除去方法。 - 前記(a)ステップで、過酸化水素は30〜50%水溶液を添加することを特徴とする、
請求項1に記載の粘土鉱物中のセシウムの除去方法。 - 前記2価陽イオンは、マグネシウムイオン、カルシウムイオン、及びバリウムイオンからなる群より選択される一つ以上であることを特徴とする、
請求項1に記載の粘土鉱物中のセシウムの除去方法。 - 過酸化水素、セシウムとイオン交換可能な陽イオン、及びセシウムにより汚染された粘土鉱物を混合して反応させる反応部、及び
前記反応部からセシウムが除去された粘土鉱物とセシウムが含まれた反応溶液とに分離する固液分離部を含み、
前記反応部は、セシウムにより汚染された粘土鉱物に過酸化水素を添加して反応させる第1反応部と、前記過酸化水素に反応させた粘土鉱物に陽イオンを添加して反応させる第2反応部と、を含み、
前記陽イオンは2価陽イオンを含むことを特徴とする、
セシウム汚染粘土の処理装置。 - 前記反応部は、過酸化水素及び陽イオンを反応させる第1反応部;及び
セシウムにより汚染された粘土鉱物に前記過酸化水素と陽イオンの混合物を添加して反応させる第2反応部を含むことを特徴とする、
請求項8に記載のセシウム汚染粘土の処理装置。 - 前記反応部と固液分離部との間に反応物に凝集剤を添加して混合させる凝集部をさらに含むことを特徴とする、
請求項8に記載のセシウム汚染粘土の処理装置。 - 前記固液分離部で分離された反応溶液からセシウムを処理する後処理部をさらに含むことを特徴とする、
請求項8に記載のセシウム汚染粘土の処理装置。 - 前記粘土鉱物は、2:1層状構造を有する粘土鉱物を含むことを特徴とする、
請求項8に記載のセシウム汚染粘土の処理装置。 - 前記過酸化水素は、30〜50%水溶液を添加することを特徴とする、
請求項9に記載のセシウム汚染粘土の処理装置。 - 前記2価陽イオンは、マグネシウムイオン、カルシウムイオン、及びバリウムイオンからなる群より選択される一つ以上であることを特徴とする、
請求項8に記載のセシウム汚染粘土の処理装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2018-0028902 | 2018-03-12 | ||
KR20180028902 | 2018-03-12 | ||
KR10-2018-0036384 | 2018-03-29 | ||
KR1020180036384A KR102039492B1 (ko) | 2018-03-12 | 2018-03-29 | 과산화수소를 이용한 점토광물 내 세슘의 제거 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019158856A JP2019158856A (ja) | 2019-09-19 |
JP6779249B2 true JP6779249B2 (ja) | 2020-11-04 |
Family
ID=67842896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018080169A Active JP6779249B2 (ja) | 2018-03-12 | 2018-04-18 | 過酸化水素を用いた粘土鉱物中のセシウムの除去方法及び処理装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US11059082B2 (ja) |
JP (1) | JP6779249B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210121562A (ko) | 2020-03-30 | 2021-10-08 | 한국원자력연구원 | 방사성 폐기물의 선택적 전처리 방법 |
CN115231582B (zh) * | 2022-07-19 | 2023-12-19 | 西安交通大学 | 一种二维蒙脱土大尺径纳米片剥离方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100764904B1 (ko) * | 2004-06-18 | 2007-10-09 | 한국원자력연구원 | 이온교환체를 이용한 세슘 또는 스트론튬의 방사성 핵종 제거방법 |
JP5671437B2 (ja) | 2011-10-31 | 2015-02-18 | フジライト工業株式会社 | 吸着材の製造方法 |
WO2013186873A1 (ja) | 2012-06-13 | 2013-12-19 | 学校法人日本大学 | 汚染土壌処理システム |
KR101914123B1 (ko) | 2016-06-22 | 2018-11-01 | 한국원자력연구원 | 양이온성 유기 층간삽입제를 이용한 점토광물 내 세슘의 제거방법 |
-
2018
- 2018-04-18 JP JP2018080169A patent/JP6779249B2/ja active Active
- 2018-10-09 US US16/154,724 patent/US11059082B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2019158856A (ja) | 2019-09-19 |
US20190275573A1 (en) | 2019-09-12 |
US11059082B2 (en) | 2021-07-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Barakan et al. | The advantages of clay mineral modification methods for enhancing adsorption efficiency in wastewater treatment: a review | |
Wan et al. | Removal of fluoride from industrial wastewater by using different adsorbents: A review | |
Chen et al. | Removal of Cd (II) and Pb (II) ions from aqueous solutions by synthetic mineral adsorbent: performance and mechanisms | |
Zheng et al. | Removal of Cs+ from water and soil by ammonium-pillared montmorillonite/Fe3O4 composite | |
Bendou et al. | Effect of hydrochloric acid on the structural of sodic-bentonite clay | |
Li et al. | Adsorption of phosphate by acid-modified fly ash and palygorskite in aqueous solution: Experimental and modeling | |
Hamdi et al. | Removal of phosphate ions from aqueous solution using Tunisian clays minerals and synthetic zeolite | |
AU2015391054B2 (en) | A process for treatment and/or remediation of water | |
JP6220114B2 (ja) | 放射性セシウム固体状被汚染物の除染方法及び装置 | |
Yin et al. | Enhanced desorption of cesium from collapsed interlayer regions in vermiculite by hydrothermal treatment with divalent cations | |
Houhoune et al. | Behaviour of modified hexadecyltrimethylammonium bromide bentonite toward uranium species | |
JP6779249B2 (ja) | 過酸化水素を用いた粘土鉱物中のセシウムの除去方法及び処理装置 | |
Yin et al. | Effective and efficient desorption of Cs from hydrothermal-treated clay minerals for the decontamination of Fukushima radioactive soil | |
US8070959B2 (en) | Chalcogenide compounds with a clay-like cation-exchange capacity and methods of use | |
Prasad et al. | Reducing the hardness of mine water using transformed fly ash | |
Kwon et al. | Comparative study of the cesium adsorption behavior of montmorillonite and illite based on their mineralogical properties and interlayer cations | |
Kim et al. | Comparison of Cs desorption from hydrobiotite by cationic polyelectrolyte and cationic surfactant | |
KR101914123B1 (ko) | 양이온성 유기 층간삽입제를 이용한 점토광물 내 세슘의 제거방법 | |
Mikyskova et al. | Equilibrium, kinetic and thermodynamic study of Pb2+ removal from aqueous solution by waste brick dust | |
Kim et al. | Desorption of cesium from hydrobiotite by hydrogen peroxide with divalent cations | |
KR102039492B1 (ko) | 과산화수소를 이용한 점토광물 내 세슘의 제거 방법 | |
Kleiv et al. | Using tailings as heavy metal adsorbents—the effect of buffering capacity | |
JP6238214B2 (ja) | 放射性物質汚染粒状物質の除染方法 | |
JP6832551B2 (ja) | セシウム吸着材及びそれを用いた環境処理方法 | |
WO2015160313A1 (en) | Process for obtaining health- and environment acceptable construction materials from the soil containing water soluble compounds of heavy metals |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20180518 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20180531 |
|
A80 | Written request to apply exceptions to lack of novelty of invention |
Free format text: JAPANESE INTERMEDIATE CODE: A80 Effective date: 20180517 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20190604 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190823 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200204 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200507 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200915 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20201013 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6779249 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |