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KR870007528A - 방사능에 오염된 물질로부터 오염을 제거하는 공정 - Google Patents

방사능에 오염된 물질로부터 오염을 제거하는 공정 Download PDF

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Publication number
KR870007528A
KR870007528A KR870000666A KR870000666A KR870007528A KR 870007528 A KR870007528 A KR 870007528A KR 870000666 A KR870000666 A KR 870000666A KR 870000666 A KR870000666 A KR 870000666A KR 870007528 A KR870007528 A KR 870007528A
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process according
potassium permanganate
dilute nitric
nitric acid
oxalic acid
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KR900007747B1 (ko
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레먼스 고트프리트
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레먼스 고트프리트
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Plasma & Fusion (AREA)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Measurement Of Radiation (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Control Of El Displays (AREA)
  • Ceramic Products (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

내용 없음

Description

방사능에 오염된 물질로부터 오염을 제거하는 공정
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (16)

  1. 오염된 물질표면을 탄산나트륨용액과 소정시간동안 연속적으로 접촉시키고, 오염된 물질표면을 가열과 함께 묽은 질산가 접촉시키면서 과망간산칼륨을 가하고, 오염된 물질 표면을 소정시간동안 옥살산용액(COOH-COOH·2H2O)과 접촉시키고, 마지막으로 상기 물질을 헹구어 건조시키는 단계로 구성된 것을 특징으로 하는 방사능에 오염된 물질의 오염제거 공정.
  2. 제1항에 있어서, 탄산나트륨 용액을 예열하는 것을 특징으로 하는 공정.
  3. 제1항 또는 2항에 있어서, 강알카리 탄산나트륨 용액이 사용되는 것을 특징으로 하는 공정.
  4. 전항중 어느 한항에 있어서, 오염된 물질표면을 탄산나트륨용액과 접촉시키는데 걸리는 시간은5-30분인것을 특징으로 하는 공정.
  5. 전항중 어느한항에 있어서, 오염된 물질을 탄산나트륨용액과 접촉시키면서 묽은 질산과 과망간산칼륨을 함께 접촉시키는데 걸리는 시간은 처리되는 물질의 최대표면과 방사성 오염물의 종류및 강도를 고려하여 선택되는 것을 특징으로 하는 공정.
  6. 전항중 어느한항에 있어서, 묽은 질산은 약 70℃의 온도에서 사용되는 것을 특징으로 하는 공정.
  7. 전항중 어느한항에 있어서, 과망간산칼륨은 1000ℓ당 1kg의 비로 가행지는 것을 특징으로 하는 공정.
  8. 제1항내지 제6항중 어느한항에 있어서, 과망간산칼륨은 처리되는 물질표면의 크기가 방사성오염물의 종류 및 강도를 고려하여 묽은 질산에 가행지는 것을 특징으로 하는 공정.
  9. 전항중 어느한항에 있어서, 과망간산칼륨은 그래뉼형태의 묽은 질산에 가행지는 것을 특징으로 하는 공정.
  10. 전항중 어느한항에 있어서, 옥살산 용액은 사용시에 가열되는 것을 특징으로 하는 공정.
  11. 전항중 어느한항에 있어서, 옥살산용액의 농도는 회백색 금속 표면을 갖는 오염물질을 생성하기에 충분한 농도인 것을 특징으로 하는 공정.
  12. 전항중 어느한항에 있어서, 처리된 물질의 행굼은 탈광물수에 의해 수행되는 것을 특징으로 하는 공정.
  13. 전항중 어느한항에 있어서, 옥살산 과량으로 처리한후에도 오염도가 여전히 존재할경우 묽은 질산및 옥살산처리를 적어도 한번 더 반복하는 것을 특징으로 하는 공정.
  14. 제13항에 있어서, 상기의 처리를 반복하면 적어도 과망간산 칼륨의 농도가 증가하는 것을 특징으로 하는 공정.
  15. 전항중 어느한항에 있어서, 오염물질과 여러가지 용액과의 접촉은 침전에 의해 수행되는 것을 특징으로 하는 공정.
  16. 전항중 어느 한항에 있어서, 오염된 물질을 처리하여 얻어지는 잔여의 생성물을 얻어진혼합물과 중성(pH=7)이 되도록 혼합하는 것을 특징으로 하는 공정.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870000666A 1986-01-30 1987-01-28 방사능에 오염된 물질로부터 오염을 제거하는 공정 Expired KR900007747B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BE904139 1986-01-30
BE904,139 1986-01-30
BE8660917A BE904139A (nl) 1986-01-30 1986-01-30 Werkwijze voor de decontaminatie van radioaktief besmette materialen.
BE904139 1986-01-30

Publications (2)

Publication Number Publication Date
KR870007528A true KR870007528A (ko) 1987-08-19
KR900007747B1 KR900007747B1 (ko) 1990-10-19

Family

ID=25661056

Family Applications (1)

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KR1019870000666A Expired KR900007747B1 (ko) 1986-01-30 1987-01-28 방사능에 오염된 물질로부터 오염을 제거하는 공정

Country Status (11)

Country Link
US (1) US4690782A (ko)
EP (1) EP0242449B1 (ko)
JP (1) JPS62217200A (ko)
KR (1) KR900007747B1 (ko)
CN (1) CN87100443B (ko)
AT (1) ATE59113T1 (ko)
BE (1) BE904139A (ko)
CA (1) CA1270428A (ko)
DE (1) DE3676192D1 (ko)
ES (1) ES8707626A1 (ko)
FI (1) FI861434A7 (ko)

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ES2045298T3 (es) * 1988-08-24 1994-01-16 Siemens Ag Procedimiento para la descontaminacion quimica de la superficie de un componente metalico de una instalacion de reactor nuclear.
US5205999A (en) * 1991-09-18 1993-04-27 British Nuclear Fuels Plc Actinide dissolution
US5322644A (en) * 1992-01-03 1994-06-21 Bradtec-Us, Inc. Process for decontamination of radioactive materials
GB9222590D0 (en) * 1992-10-27 1992-12-09 British Nuclear Fuels Plc The treatment of solid organic wastes
FR2699936B1 (fr) * 1992-12-24 1995-01-27 Electricite De France Procédé de dissolution d'oxydes déposés sur un substrat métallique.
US5640703A (en) * 1994-04-18 1997-06-17 British Nuclear Fuels Plc Treatment of solid wastes
GB9426023D0 (en) * 1994-12-22 1995-02-22 Bradtec Ltd Process for decontaminating radioactive materials
RU2124768C1 (ru) * 1996-03-19 1999-01-10 Горно-химический комбинат Способ дезактивации твердой фазы гетерогенных радиоактивных отходов
GB9709882D0 (en) * 1997-05-16 1997-07-09 British Nuclear Fuels Plc A method for cleaning radioactively contaminated material
RU2152650C1 (ru) * 1998-10-13 2000-07-10 Московское государственное предприятие Объединенный эколого-технологический и научно-исследовательский центр по обезвреживанию РАО и охране окружающей среды "Радон" Способ дезактивации грунтов от радионуклидов цезия
JP3809577B2 (ja) * 2001-04-03 2006-08-16 株式会社日立製作所 放射性物質除染方法及び放射性物質除染装置
RU2282508C1 (ru) * 2005-05-30 2006-08-27 Государственное образовательное учреждение высшего профессионального образования "Орловский государственный технический университет" (ОрелГТУ) Способ очистки почвы от техногенных загрязнений
EP2758966B1 (de) 2011-09-20 2016-03-16 Horst-Otto Bertholdt Verfahren zum abbau einer oxidschicht
CN102626605B (zh) * 2012-04-13 2014-04-23 天津位一新材料科技有限公司 去除水中放射性元素的材料及制备和使用方法
DE102013102331B3 (de) 2013-03-08 2014-07-03 Horst-Otto Bertholdt Verfahren zum Abbau einer Oxidschicht
EP3494579B1 (de) 2017-02-14 2020-08-26 Siempelkamp Nis Ingenieurgesellschaft MBH Verfahren zum abbau einer radionuklidhaltigen oxidschicht
CN114684904A (zh) * 2020-12-25 2022-07-01 中核四0四有限公司 一种通过提高酸度除去草酸的方法

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DE1074357B (de) * 1960-01-28 Mctallgesellschaft Aktiengesellschaft, Frankfurt/M Alkalisch reagierende, entfettende Reiniger für Metalle
DE1546163A1 (de) * 1965-03-13 1970-04-16 Metallgesellschaft Ag Verfahren zur Entfernung von OElkohle und anderen organischen Verunreinigungen von Metalloberflaechen
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US3778309A (en) * 1971-06-25 1973-12-11 Int Nickel Co Descaling process for alloys containing chromium
DE2333516C3 (de) * 1973-07-02 1979-05-03 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Dekontaminationsmittel für metallische Oberflächen und Verfahren zum Dekontaminieren unter Verwendung derselben
DE2613351C3 (de) * 1976-03-29 1982-03-25 Kraftwerk Union AG, 4330 Mülheim Verfahren zur chemischen Dekontamination von metallischen Bauteilen von Kernreaktoranlagen
US4145396A (en) * 1976-05-03 1979-03-20 Rockwell International Corporation Treatment of organic waste
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JPS6057299A (ja) * 1983-09-09 1985-04-03 三菱重工業株式会社 汚染された金属材料の洗浄方法

Also Published As

Publication number Publication date
CN87100443A (zh) 1987-08-12
FI861434L (fi) 1987-07-31
DE3676192D1 (de) 1991-01-24
US4690782A (en) 1987-09-01
JPS62217200A (ja) 1987-09-24
ES8707626A1 (es) 1987-08-01
ATE59113T1 (de) 1990-12-15
CN87100443B (zh) 1988-11-16
EP0242449B1 (en) 1990-12-12
ES553963A0 (es) 1987-08-01
CA1270428A (en) 1990-06-19
FI861434A7 (fi) 1987-07-31
EP0242449A1 (en) 1987-10-28
KR900007747B1 (ko) 1990-10-19
FI861434A0 (fi) 1986-04-03
BE904139A (nl) 1986-05-15

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