DE4232246A1 - Process for the destruction of an organic substance - Google Patents
Process for the destruction of an organic substanceInfo
- Publication number
- DE4232246A1 DE4232246A1 DE19924232246 DE4232246A DE4232246A1 DE 4232246 A1 DE4232246 A1 DE 4232246A1 DE 19924232246 DE19924232246 DE 19924232246 DE 4232246 A DE4232246 A DE 4232246A DE 4232246 A1 DE4232246 A1 DE 4232246A1
- Authority
- DE
- Germany
- Prior art keywords
- substance
- acid
- solution
- decontamination
- organic
- 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.)
- Withdrawn
Links
- 239000000126 substance Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000006378 damage Effects 0.000 title description 2
- 239000002253 acid Substances 0.000 claims abstract description 20
- 239000008139 complexing agent Substances 0.000 claims abstract description 12
- 239000003729 cation exchange resin Substances 0.000 claims abstract description 11
- 238000005202 decontamination Methods 0.000 claims abstract description 11
- 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 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 150000007524 organic acids Chemical class 0.000 claims abstract description 3
- 150000001768 cations Chemical class 0.000 claims description 9
- 230000003588 decontaminative effect Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000011572 manganese Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 150000001450 anions Chemical class 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- VEPSWGHMGZQCIN-UHFFFAOYSA-H ferric oxalate Chemical compound [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 229940023913 cation exchange resins Drugs 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/38—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by oxidation; by combustion
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/24—Organic substances containing heavy metals
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/683—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of complex-forming compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/006—Radioactive compounds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Zerstörung einer organischen Substanz, insbesondere einer organischen Saure, die insbesondere bei der Dekontamination radioaktiv kontaminierter Oberflächen von Bauteilen als Komplex bildner eingesetzt wird, und/oder eines bei einer solchen Dekontamination gebildeten Komplexes.The invention relates to a method for destroying a organic substance, especially an organic one Acid, which is particularly radioactive during decontamination contaminated surfaces of components as a complex Formers is used, and / or one of such Decontamination complex formed.
Die organische Substanz kann gelöst vorliegen. Das Lösungs mittel ist in der Regel Wasser.The organic substance can be dissolved. The solution medium is usually water.
Bei der Oberflächendekontamination eines radioaktiv konta minierten Bauteils werden häufig organische Säuren einge setzt. Diese Säuren können dabei als Komplexbildner dienen, die mit Ablagerungen, welche die Kontamination tragen, Komplexe bilden. Solche Komplexe sind leicht lös lich. Sie sind daher leicht zu entfernen. Das zuvor radio aktiv kontaminierte Bauteil ist dann dekontaminiert.With the surface decontamination of a radioactive contact mined component, organic acids are often used puts. These acids can act as complexing agents serve with deposits, which the contamination wear, form complexes. Such complexes are easy to solve Lich. They are therefore easy to remove. That previously radio the actively contaminated component is then decontaminated.
Es verbleibt jedoch eine Abfallösung (Abwasser), die so wohl unverbrauchten Komplexbildner, als auch bei der De kontamination gebildete Komplexe enthält. Eine solche Lö sung kann inaktive und radioaktive Schwermetallkationen, z. B. Eisen, Chrom, Nickel, Kobalt oder Mangan, und anioni sche Komplexe der zur Dekontamination verwendeten organi schen Säuren, sowie auch diese Säuren selbst enthalten.However, there remains a waste solution (wastewater) that way probably unused complexing agent, as well as in the De contamination contains complexes formed. Such a lion solution can contain inactive and radioactive heavy metal cations, e.g. B. iron, chromium, nickel, cobalt or manganese, and anioni cal complexes of organi used for decontamination acids, as well as these acids themselves.
Die weitere Behandlung von Komplexbildnern, insbesondere eine Endlagerung von Komplexbildnern, ist, da Komplexbild ner wassergefährdende Stoffe sind, aufwendig und fast un möglich. Auch eine Einbindung der Komplexe in Bitumen oder Zement ist problematisch. Die eingeschränkte Thermostabili tät der Komplexe behindert eine Bitumeneinbindung. Bei einer Zementierung wird das Erhärten des Zements gestört.The further treatment of complexing agents, in particular a final storage of complexing agents is because complexing ner are water-polluting substances, complex and almost un possible. Inclusion of the complexes in bitumen or Cement is problematic. The limited thermostabili the complex hinders bitumen inclusion. At cementation interferes with the hardening of the cement.
Bisher sind auch schon Verfahren zur Volumenverminderung einer gebrauchten Dekontaminationslösung vorgeschlagen worden. Neben einem Aufkonzentrieren durch Eindampfen ist eine Reinigung mit Ionenaustauschern bekannt. Dazu werden sowohl Kationenaustauscher als auch Anionenaustauscher eingesetzt. Es fallen dann sehr große Mengen Austauscher harze an, die endgelagert werden müssen.So far, there are also methods for volume reduction a used decontamination solution been. In addition to being concentrated by evaporation cleaning with ion exchangers is known. To do this both cation exchangers and anion exchangers used. Very large amounts of exchangers then fall resins that have to be disposed of.
Es ist auch schon eine Oxidation der zu entsorgenden Sub stanz mit Kaliumpermanganat und eine gleichzeitige Fällung der Schwermetalle zusammen mit entstehendem Braunstein vorgeschlagen worden. Es verbleibt dabei eine Lösung, die zusätzlich zu den bereits vorhandenen Kationen Kalium ent hält, das entsorgt werden muß.There is already an oxidation of the sub to be disposed of punch with potassium permanganate and a simultaneous precipitation the heavy metals together with the resulting manganese dioxide been proposed. There remains a solution that in addition to the existing cations potassium holds that has to be disposed of.
Um eine möglichst vollständige Umwandlung des Mangans in zweiwertiges Mangan, das keine unerwünschten anionischen Komplexe bildet, zu gewährleisten, wird eine Säure, z. B. Schwefelsäure, zugeführt. Zusätzlich zum Kalium und Mangan muß dann das Anion dieser Säure entfernt werden. Die zu entsorgende Abfallmenge erhöht sich dadurch.In order to convert the manganese as completely as possible into divalent manganese that has no undesirable anionic Forms complexes to ensure an acid, e.g. B. Sulfuric acid. In addition to potassium and manganese the anion of this acid must then be removed. The too This increases the amount of waste disposed of.
Im übrigen gewährleisten die genannten Verfahren keine zuverlässige vollständige Beseitigung der Komplexbildner und Komplexe.Otherwise, the procedures mentioned do not guarantee reliable complete elimination of the complexing agents and complexes.
Der Erfindung lag die Aufgabe zugrunde, ein Verfahren zur Entsorgung einer organischen Substanz anzugeben, nach dessen Durchführung nur noch ein kleines Volumen, das frei von Komplexbildnern, Komplexen und zusätzlichen Katio nen ist, weiterbehandelt oder einer Endlagerung zugeführt werden muß. Es soll zum Bereitstellen der zur Reaktion not wendigen Protonen keine zusätzliche Säure erforderlich sein. The invention was based on the object of a method for Specify disposal of an organic substance after its implementation only a small volume, the free of complexing agents, complexes and additional Katio is further processed or sent to a repository must become. It is intended to provide the response needed agile protons no additional acid required his.
Die Aufgabe wird gemäß der Erfindung dadurch gelöst, daß einer Lösung der Substanz Permangansäure zugemischt wird und daß dann ein nach einer chemischen Reaktion verblei bender Stoff entfernt wird.The object is achieved according to the invention in that a solution of the substance permanganic acid is mixed and that one then remains after a chemical reaction bender substance is removed.
Mit dem Einsatz von Permangansäure wird der Vorteil er zielt, daß kein Anion, insbesondere kein Anion einer Säure, wie z. B. Sulfat, entsorgt werden muß. Es kann nämlich vorteilhafterweise auf zusätzliche Säuren wie Schwefelsäure bei der Oxidation der zu entsorgenden Substanz verzichtet werden, da die eingesetzte Permangan säure selbst Protonen für die Oxidation der organischen Substanz, die entsorgt werden soll, liefert. Gegenüber der Verwendung von Kaliumpermanganat wird der Vorteil erzielt, daß weder Kalium noch sein Gegenion entsorgt werden müssen. Das nach der Durchführung des Verfahrens nach der Erfindung noch zu entsorgende Restvolumen ist vorteilhafterweise deut lich kleiner als bei bekannten Verfahren und ist frei von Komplexbildnern, Komplexen und zusätzlichen Kationen.With the use of permanganic acid, the advantage is he aims that no anion, especially no anion of a Acid such as B. sulfate, must be disposed of. It can namely advantageously on additional acids such as Sulfuric acid in the oxidation of the waste to be disposed of Substance can be dispensed with because the permangan used acid itself protons for the oxidation of organic Substance to be disposed of provides. Opposite the Using potassium permanganate gives the advantage that neither potassium nor its counter ion have to be disposed of. That after performing the method according to the invention Any remaining volume to be disposed of is advantageously clear Lich smaller than in known methods and is free of Complexing agents, complexes and additional cations.
Beispielsweise wird nach der Zugabe von Permangansäure eine ausfallende feste Substanz abgetrennt, die, z. B. durch Filtration, aus der Lösung entfernt werden kann. Diese feste Substanz besteht aus Braunstein, der einem Endlager zugeführt werden kann. Die verbleibende Restlösung ist vorteilhafterweise frei von Komplexbildnern und Kom plexen und enthält auch keine Ionen eines Oxidationsmit tels, die eine weitere Behandlung notwendig machen würden. Es braucht nur Braunstein entsorgt zu werden.For example, after adding permanganic acid separated a precipitating solid substance which, for. B. by filtration, can be removed from the solution. This solid substance consists of brown stone, the one Repository can be supplied. The remaining solution is advantageously free of complexing agents and com plex and also contains no ions of an oxidizing agent that would require further treatment. It only needs to be disposed of manganese dioxide.
Beispielsweise wird die abgetrennte, feste Substanz ge trocknet. Dadurch wird das zu lagernde Volumen weiter verkleinert.For example, the separated solid substance is ge dries. This increases the volume to be stored downsized.
Nach einem anderen wesentlichen Beispiel wird der Lösung der Substanz in Gegenwart eines Kationenaustauscherharzes Permangansäure zugemischt. Anschließend wird das beladene Kationenaustauscherharz entfernt. Mit diesem Verfahren wird der Vorteil erzielt, daß ein Kationenaustauscherharz, das ohnehin zur Bindung von kationischen Radionukliden erforderlich sein kann, ausreicht, um alle anfallenden Ionen zu binden.Another essential example is the solution the substance in the presence of a cation exchange resin Permanganic acid added. Then the loaded Cation exchange resin removed. With this procedure the advantage is achieved that a cation exchange resin, anyway for the binding of cationic radionuclides may be sufficient to cover all accruing To bind ions.
Bei Verwendung eines Kationenaustauscherharzes in Wasserstoff-Form kann dieses darüber hinaus für die Oxi dation notwendige Protonen liefern.When using a cation exchange resin in This form of hydrogen can also be used for the oxi dation provide necessary protons.
Bei der Oxidationsreaktion von Permangansäure (HMnO4) mit einem Komplexbildner, beispielsweise mit Oxalsäure (H2C2O4), oder mit einem Komplex, beispielsweise mit einem Eisen oxalatkomplex (H3Fe(C2O4)3), bleiben bei deren Zerstörung keine Anionen in der Lösung zurück, die entfernt werden müßten. Es bleiben auch keine abionischen Komplexe drei wertiger Kationen zurück, die durch einen Kationenaustau scher nicht entfernt werden könnten. Neben dem beladenen Kationenaustauscherharz verbleiben als Restprodukte nur Wasser und Kohlenstoffdioxid, die keiner weiteren Behand lung bedürfen.In the oxidation reaction of permanganic acid (HMnO 4 ) with a complexing agent, for example with oxalic acid (H 2 C 2 O 4 ), or with a complex, for example with an iron oxalate complex (H 3 Fe (C 2 O 4 ) 3 ), remain their destruction does not return anions in the solution that should be removed. There are also no abionic complexes of three valued cations that cannot be removed by a cation exchanger. In addition to the loaded cation exchange resin, only water and carbon dioxide remain as residual products, which do not require any further treatment.
Die folgenden Reaktionsgleichungen zeigen, daß Permangan säure und ein Kationenaustauscherharz (ITHx oder ITHy) der Wasserstoff-Form, wobei x bzw. y die Anzahl der Wasser stoffatome des unbeladenen Kationenaustauscherharzes sind, ausreichen, um z. B. Oxalsäure oder einen Eisenoxalatkom plex zu entsorgen:The following reaction equations show that permanganic acid and a cation exchange resin (ITH x or ITH y ) of the hydrogen form, where x and y are the number of hydrogen atoms of the unloaded cation exchange resin, are sufficient to z. B. to dispose of oxalic acid or an iron oxalate complex:
5H2C2O4+2HMnO4+ITHx → 10CO2+8H2O+ITHx-4Mn2
5H3Fe(C2O4)3+6HMnO4+ITHy → 30CO2+24H2O+ITHy-27Fe5Mn6 5H 2 C 2 O 4 + 2HMnO 4 + ITH x → 10CO 2 + 8H 2 O + ITH x-4 Mn 2
5H 3 Fe (C 2 O 4 ) 3 + 6HMnO 4 + ITH y → 30CO 2 + 24H 2 O + ITH y-27 Fe 5 Mn 6
ITHx und ITHy sind unbeladene, ITHx-4 Mn2 und ITHy-27 Fe5 Mn6 beladene Kationenaustauscherharze. ITH x and ITH y are unloaded, ITH x-4 Mn 2 and ITH y-27 Fe 5 Mn 6 loaded cation exchange resins.
Ein entscheidender Vorteil des Verfahrens nach der Erfin dung ist darin zu sehen, daß das Verfahren direkt nach einem Dekontaminationsverfahren im dekontaminierten System oder Behälter durchgeführt werden kann, da keine den bestimmungsgemäßen Betrieb des Systems störenden Stoffe zurückbleiben. Es sind keine zusätzlichen Apparate oder teure Anlagen zur Durchführung des Verfahrens notwendig. Das Verfahren nach der Erfindung ist darüber hinaus in einfacher Weise in einen mehrstufigen Dekontaminations prozeß integrierbar.A decisive advantage of the Erfin procedure It can be seen that the procedure follows directly a decontamination process in the decontaminated system or container can be carried out because none of the Intended operation of the system interfering substances stay behind. There are no additional devices or expensive equipment necessary to carry out the process. The method according to the invention is also in simple way in a multi-stage decontamination process integrable.
Mit dem Verfahren nach der Erfindung wird insbesondere auch der Vorteil erzielt, daß nur Permangansäure und ein Kationenaustauscher erforderlich sind, um eine organische Substanz, die insbesondere aus Restsubstanzen eines Dekon taminationsverfahrens besteht, zu zerstören. Es ist kein Anionenaustauscher erforderlich. Das verbleibende kleine Restvolumen, das endzulagern ist, ist ein beladenes Kationenaustauscherharz. Es verbleiben keine organischen Substanzen, insbesondere Komplexbildner oder Komplexe im endzulagernden Restabfall. Außer dem Kationenaustauscher harz fallen nur Wasser und Kohlenstoffdioxid an.With the method according to the invention in particular also achieved the advantage that only permanganic acid and a Cation exchangers are required to be an organic Substance consisting in particular of residual substances of a decon tamination process exists to destroy. It is not Anion exchanger required. The remaining little one Residual volume to be disposed of is a loaded one Cation exchange resin. There are no organic ones Substances, especially complexing agents or complexes in residual waste to be disposed of. Except for the cation exchanger Resin only produces water and carbon dioxide.
Claims (4)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924232246 DE4232246A1 (en) | 1992-09-25 | 1992-09-25 | Process for the destruction of an organic substance |
| PCT/DE1993/000851 WO1994008343A1 (en) | 1992-09-25 | 1993-09-13 | Method of disposing of an organic substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924232246 DE4232246A1 (en) | 1992-09-25 | 1992-09-25 | Process for the destruction of an organic substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4232246A1 true DE4232246A1 (en) | 1994-03-31 |
Family
ID=6468876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19924232246 Withdrawn DE4232246A1 (en) | 1992-09-25 | 1992-09-25 | Process for the destruction of an organic substance |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE4232246A1 (en) |
| WO (1) | WO1994008343A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19753117A1 (en) * | 1996-12-11 | 1998-06-18 | Krupp Vdm Gmbh | Oxidative purification of gases or effluent |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2936922A1 (en) * | 1978-09-13 | 1980-03-27 | Sumitomo Chemical Co | OXIDATION RESISTANT ION EXCHANGE RESINS AND USE THEREOF IN ELIMINATING CATIONS FROM OXIDIZER SOLUTIONS |
| DE3413868A1 (en) * | 1984-04-12 | 1985-10-17 | Kraftwerk Union AG, 4330 Mülheim | METHOD FOR CHEMICAL DECONTAMINATION OF METAL COMPONENTS OF CORE REACTOR PLANTS |
| DE3439864C2 (en) * | 1984-10-31 | 1987-05-07 | Kraftwerk Union AG, 4330 Mülheim | Process for chemical decontamination of heat exchangers of water-cooled nuclear reactors |
| US5093073A (en) * | 1987-10-02 | 1992-03-03 | Abb Reaktor Gmbh | Process for the decontamination of surfaces |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3629135A (en) * | 1968-10-10 | 1971-12-21 | Atomic Energy Commission | Method of dissolving radioactive contaminated organic ion exchange resins |
| BE859028A (en) * | 1977-09-26 | 1978-03-28 | Belgonucleaire Sa | WATER DECONTAMINATION PROCESS |
| DE2835763A1 (en) * | 1978-08-16 | 1980-02-28 | Kraftwerk Union Ag | PROCESSES FOR PURIFYING CONTAMINATED WASTEWATER CONTAINING TENSIDS AND DETERGENTS |
| HU185105B (en) * | 1982-06-10 | 1984-12-28 | Magyar Asvanyolaj Es Foeldgaz | Method for producing waste solution concentrates of atomic power station having high salt concantration |
-
1992
- 1992-09-25 DE DE19924232246 patent/DE4232246A1/en not_active Withdrawn
-
1993
- 1993-09-13 WO PCT/DE1993/000851 patent/WO1994008343A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2936922A1 (en) * | 1978-09-13 | 1980-03-27 | Sumitomo Chemical Co | OXIDATION RESISTANT ION EXCHANGE RESINS AND USE THEREOF IN ELIMINATING CATIONS FROM OXIDIZER SOLUTIONS |
| DE3413868A1 (en) * | 1984-04-12 | 1985-10-17 | Kraftwerk Union AG, 4330 Mülheim | METHOD FOR CHEMICAL DECONTAMINATION OF METAL COMPONENTS OF CORE REACTOR PLANTS |
| DE3439864C2 (en) * | 1984-10-31 | 1987-05-07 | Kraftwerk Union AG, 4330 Mülheim | Process for chemical decontamination of heat exchangers of water-cooled nuclear reactors |
| US5093073A (en) * | 1987-10-02 | 1992-03-03 | Abb Reaktor Gmbh | Process for the decontamination of surfaces |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19753117A1 (en) * | 1996-12-11 | 1998-06-18 | Krupp Vdm Gmbh | Oxidative purification of gases or effluent |
| DE19753117C2 (en) * | 1996-12-11 | 1999-01-07 | Krupp Vdm Gmbh | Process for the simultaneous cleaning of gaseous and liquid media |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1994008343A1 (en) | 1994-04-14 |
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