KR102035853B1 - 계통 제염 방법 - Google Patents
계통 제염 방법 Download PDFInfo
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- KR102035853B1 KR102035853B1 KR1020190084011A KR20190084011A KR102035853B1 KR 102035853 B1 KR102035853 B1 KR 102035853B1 KR 1020190084011 A KR1020190084011 A KR 1020190084011A KR 20190084011 A KR20190084011 A KR 20190084011A KR 102035853 B1 KR102035853 B1 KR 102035853B1
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- organic acid
- reactor
- metal ions
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- 238000005202 decontamination Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title description 23
- 230000003588 decontaminative effect Effects 0.000 title description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 37
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 37
- 150000007524 organic acids Chemical class 0.000 claims abstract description 34
- 239000007800 oxidant agent Substances 0.000 claims abstract description 29
- 239000007769 metal material Substances 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 31
- 229910052742 iron Inorganic materials 0.000 claims description 26
- 230000001590 oxidative effect Effects 0.000 claims description 26
- -1 iron ion Chemical class 0.000 claims description 21
- 229910001430 chromium ion Inorganic materials 0.000 claims description 6
- 235000005985 organic acids Nutrition 0.000 claims description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 69
- 239000000243 solution Substances 0.000 description 64
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 34
- 235000006408 oxalic acid Nutrition 0.000 description 23
- 239000003729 cation exchange resin Substances 0.000 description 21
- 238000002347 injection Methods 0.000 description 17
- 239000007924 injection Substances 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 15
- 239000003456 ion exchange resin Substances 0.000 description 13
- 229920003303 ion-exchange polymer Polymers 0.000 description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 12
- 238000005406 washing Methods 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 238000000354 decomposition reaction Methods 0.000 description 10
- 239000011651 chromium Substances 0.000 description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000011946 reduction process Methods 0.000 description 7
- 239000003957 anion exchange resin Substances 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229910052792 caesium Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 238000009390 chemical decontamination Methods 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 150000007522 mineralic acids Chemical class 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000012857 radioactive material Substances 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910052778 Plutonium Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
- G21F9/002—Decontamination of the surface of objects with chemical or electrochemical processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
- B01D15/361—Ion-exchange
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Analytical Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Description
도 2는 본 발명의 일 실시예에 따른 계통 제염 방법을 설명하기 위한 순서도이다.
도 3 내지 도 8은 도 2의 제염 순서에 따른 용액의 흐름을 설명하기 위한 도면이다.
43: 배기관 100: 계통
200: 필터부 300: 양이온 교환 수지
400: UV 반응기 500: 혼상 이온 교환 수지
600: 약품 공급부 800: 모니터링부
Claims (5)
- 용액이 이동하는 계통의 제염 방법에 있어서,
상기 계통에 산화제를 주입하는 단계,
상기 계통에 제1 농도의 환원제를 주입하는 단계,
상기 제1 농도의 환원제를 주입하는 단계 후, 상기 계통에 제2 농도의 환원제를 주입하는 단계,
상기 용액의 입자성 금속 물질을 제거하는 단계,
상기 용액의 유기산을 분해하는 단계,
상기 유기산을 분해하는 단계 후 상기 용액에 잔류하는 금속 이온 및 상기 유기산을 제거하는 단계
를 포함하고,
상기 제2 농도는 상기 제1 농도 보다 큰 계통 제염 방법. - 제1항에서,
상기 입자성 금속 물질을 제거하는 단계 후,
상기 용액의 금속 이온을 제거하는 단계
를 더 포함하고,
상기 금속 이온을 제거하는 단계 후, 상기 용액의 철 이온 농도는 2mM이하인 계통 제염 방법. - 제2항에서,
상기 입자성 금속 물질을 제거하는 단계 전,
상기 금속 이온의 농도를 측정하는 단계
를 더 포함하는 계통 제염 방법. - 제3항에서,
상기 금속 이온의 농도를 측정하는 단계에서 측정된 크롬 이온 농도가 1ppm이상이면, 상기 잔류하는 금속 이온 및 유기산을 제거하는 단계 후에, 상기 계통에 산화제를 주입하는 단계, 계통에 제1 농도의 환원제를 주입하는 단계, 상기 계통에 제2 농도의 환원제를 주입하는 단계, 상기 용액의 입자성 금속 물질을 제거하는 단계, 상기 용액의 유기산을 분해하는 단계 및 상기 잔류하는 금속 이온 및 유기산을 제거하는 단계를 반복하고,
상기 금속 이온의 농도를 측정하는 단계에서 측정된 상기 용액의 크롬 이온 농도가 1ppm미만이면, 상기 잔류하는 금속 이온 및 유기산을 제거하는 단계 후에, 상기 계통에 제2 농도의 환원제를 주입하는 단계, 상기 용액의 입자성 금속 물질을 제거하는 단계, 상기 용액의 유기산을 분해하는 단계 및 상기 잔류하는 금속 이온 및 유기산을 제거하는 단계
를 반복하는 계통 제염 방법. - 제1항에서,
상기 잔류하는 금속 이온 및 유기산을 제거하는 단계 후,
상기 계통의 배관의 표면 선량률을 측정하여 DF값을 도출하는 단계
를 더 포함하고,
상기 DF가 기준치 이상이면 상기 용액을 계통 또는 외부로 배수하는 계통 제염 방법.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001091692A (ja) * | 1999-09-20 | 2001-04-06 | Toshiba Corp | 原子炉構造部品の化学洗浄装置 |
JP2004170278A (ja) * | 2002-11-21 | 2004-06-17 | Toshiba Corp | 放射化部品の化学除染方法および装置 |
JP2012108073A (ja) * | 2010-11-19 | 2012-06-07 | Toshiba Corp | 除染方法および除染装置 |
-
2019
- 2019-07-11 KR KR1020190084011A patent/KR102035853B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001091692A (ja) * | 1999-09-20 | 2001-04-06 | Toshiba Corp | 原子炉構造部品の化学洗浄装置 |
JP2004170278A (ja) * | 2002-11-21 | 2004-06-17 | Toshiba Corp | 放射化部品の化学除染方法および装置 |
JP2012108073A (ja) * | 2010-11-19 | 2012-06-07 | Toshiba Corp | 除染方法および除染装置 |
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