EP0963588A1 - Ion-exchange resin processing device - Google Patents
Ion-exchange resin processing deviceInfo
- Publication number
- EP0963588A1 EP0963588A1 EP98905223A EP98905223A EP0963588A1 EP 0963588 A1 EP0963588 A1 EP 0963588A1 EP 98905223 A EP98905223 A EP 98905223A EP 98905223 A EP98905223 A EP 98905223A EP 0963588 A1 EP0963588 A1 EP 0963588A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exchange resin
- ion exchange
- ion
- mill
- resin
- 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.)
- Granted
Links
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
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
-
- 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
- G21F9/008—Apparatus specially adapted for mixing or disposing radioactively contamined material
Definitions
- the invention relates to a device for processing ion exchange resin from a nuclear plant.
- waste water or condensate flows are usually subjected to cleaning.
- ion exchange resins in bed form e.g. mixed bed filters
- precoat layers e.g., ion exchange resins in the form of precoat layers.
- the ion exchange resins are used in particular to deionize the respective wastewater or condensate flow.
- anionic and / or cationic ion exchange resins can be used.
- the respective ion exchange resin can be in powder form as a powder resin.
- ion exchange resin in the form of small beads (spherical resin) can also be used.
- the ion exchange resins used as cleaning or filter material are disposed of after their use.
- Fine-grained or powdery ion exchange resins can be subjected to a chemical or thermal treatment that reduces their swelling capacity. After such a reduction in the swelling capacity of the respective ion exchange resin, it is possible to incorporate the ion exchange resin in a cement or bitumen matrix without the matrix being destroyed by swelling of the ion exchange resin. In this way, a powdered ion exchange resin is particularly good for final storage.
- a limited reduction in the swelling capacity can be achieved by chemical or thermal treatment.
- ion exchange resins are therefore usually stored temporarily or in a dewatered or dried form or by means of a binder. In the case of such storage, however, undesired swelling and thus damage to the container of the ion exchange resin is possible when water enters.
- the invention is therefore based on the object of specifying a device which enables particularly reliable intermediate or final storage of coarse-grained ion exchange resin or of spherical resin.
- This object is inventively achieved by a device for the preparation of ion exchange resin from a nuclear installations exchange resin for crushing the Ionenaus ⁇ in which a mill is provided.
- the invention is based on the consideration that an integration into a cement or bitumen matrix should be provided for a particularly reliable intermediate or final storage also for coarse-grained ion exchange resin or for spherical resin.
- a suitable reduction in the swelling capacity of the ion exchange resin and the resin ball should be ensured ⁇ .
- the swelling capacity can be reduced by a suitable chemical or thermal treatment analogous to the treatment of a fine-grain ion exchange resin.
- the coarse-grained ion exchange resin or the resin ball in the nature of a pretreatment should first zer ⁇ be downsized.
- a suitable comminution device should be provided for this.
- a disk mill is expediently provided in particular, which has a fixed stator disk as grinding elements and a rotor disk rotating relative to it.
- the crushing of the ion exchange resin can take place in an adjustable gap provided between the stator disk and the rotor disk due to shear and cutting forces.
- the use of a disk mill has proven to be particularly effective in comminuting the ion exchange resin.
- Corundum disks are preferably provided as grinding elements of the disk mill.
- the disk mill is advantageously connected to a circulation circuit of the ion exchange resin.
- a repeated passage of the ion exchange resin through the disk mill is thus possible, in particular through a variation of the gap between the grinding elements of which a greater size reduction can be achieved from one passage to the next.
- the ion exchange resin can be pumped in a suspension and thus can be guided in a circulating circuit, although coarse-grained ion exchange resin or spherical resin usually sediments.
- the advantages achieved by the invention are, in particular, that the use of a disk mill in the preparation of an ion exchange resin from a nuclear plant makes it possible to comminute the ion exchange resin with particularly simple means.
- the comminution can be carried out, in particular after several passes of the ion exchange resin through the disk mill, up to a grain size of the ion exchange resin of less than 200 ⁇ m.
- the swelling power of one such treated ion exchange resin is mixed by means of a ther ⁇ or chemical treatment can be reduced.
- Ion exchange resin prepared in this way in the form of a sphere can thus be supplied to a particularly suitable intermediate or final storage, for example by incorporation into a cement or bitumen matrix.
- the device 1 is provided for the treatment of ion exchange resin I from a nuclear plant, not shown in detail.
- the device 1 comprises a receiving container 2 provided for receiving the ion exchange resin I.
- the receiving container 2 has an agitator 6 which can be driven by a motor 4.
- On the output side of the receptacle 2 is connected via a shut-off by a valve 8 ⁇ bare conduit 10 with a disk mill 12th
- the disk mill 12 is in turn connected on the output side via a line 14 to a collecting container 16 which has an agitator 20 which can be driven by a motor 18.
- the collecting container 16 is connected to a line 22 which can be shut off by a valve 21 and into which a pump 24 is connected.
- the line 22 is connected in a manner not shown to a device for further treatment of the ion exchange resin I.
- a line section 28, which can be shut off with a valve 26 branches off from the line 22 and is connected to the line 10 provided between the receptacle 2 and the disk mill 12.
- the disk mill 12 is in a through the line 14, the collecting container 16, the line 22, the pump 24, the line section 28 and the line 10 formed circulation circuit 30 switched.
- the disk mill 12 comprises a stator disk as the first grinding element 32 and a rotor disk which can be driven by a motor 36 as the second grinding element 34.
- the grinding elements 32, 34 are designed as corundum disks.
- the ion exchange resin I is supplied to the receiving container 2 via a supply line 38.
- the ion exchange resin I is stirred as a resin / water mixture.
- water W is supplied to the receiving container 2 from a water container 40 via a feed line 42.
- the ion exchange resin I is fed to the disk mill 12 via the line 10.
- the ion exchange resin I is comminuted in a gap 44 between the grinding elements 32, 34 of the disk mill 12 as a result of shear and cutting forces. After comminution, the ion exchange resin I 'arrives in the collecting container 16.
- the comminuted ion exchange resin I ' can be pumped in a suspension and can thus be supplied to the disk mill 12 by means of the pump 24 via the circulation circuit 30 for a new pass.
- the width of the gap 44 By modifying the width of the gap 44, further comminution is possible in a further pass through the disk mill 12.
- the crushing of the ion exchange resin I is continued by repeated passage through the disk mill 12 as long as the particle size of the ion exchange resin I 'falls below a predeterminable size limit of, for example, about 200 ⁇ m. As soon as this occurs, the comminuted ion exchange resin I 'is fed via line 22 for further processing. leads.
- a thermal and / or a chemical treatment for reducing the swelling capacity of the comminuted ion exchange resin I 'can be provided there, for example.
- treatment of the comminuted ion exchange resin I ' is possible analogously to treatment of a fine-grained ion exchange resin.
- the comminuted ion exchange resin I 'can be incorporated into a cement or bitumen matrix.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Crushing And Grinding (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Description
Beschreibungdescription
Vorrichtung zur Aufbereitung von IonenaustauscherharzDevice for processing ion exchange resin
Die Erfindung bezieht sich auf eine Vorrichtung zur Aufbereitung von Ionenaustauscherharz aus einer kerntechnischen Anlage.The invention relates to a device for processing ion exchange resin from a nuclear plant.
In einer kerntechnischen Anlage, insbesondere in einer Kern- kraftwerksanlage, werden Abwässerströme oder Kondensatströme üblicherweise einer Reinigung unterzogen. Für eine derartige Reinigung, insbesondere für eine Endreinigung, können Ionenaustauscherharze in Bettform (z.B. Mischbettfilter) oder in Form von Anschwemmschichten eingesetzt werden. Die Ionenaus- tauscherharze dienen dabei insbesondere zur Entionisierung des jeweiligen Abwasser- oder Kondensatstroms. Je nach anfallender Ionenart können anionische und/oder kationische Ionenaustauscherharze eingesetzt werden. Das jeweilige Ionenaustauscherharz kann dabei in Pulverform als Pulverharz vorlie- gen. Alternativ kann aber auch Ionenaustauscherharz in Form von kleinen Kügelchen (Kugelharz) verwendet werden.In a nuclear plant, in particular in a nuclear power plant, waste water or condensate flows are usually subjected to cleaning. For such cleaning, especially for final cleaning, ion exchange resins in bed form (e.g. mixed bed filters) or in the form of precoat layers can be used. The ion exchange resins are used in particular to deionize the respective wastewater or condensate flow. Depending on the type of ion obtained, anionic and / or cationic ion exchange resins can be used. The respective ion exchange resin can be in powder form as a powder resin. Alternatively, ion exchange resin in the form of small beads (spherical resin) can also be used.
Die als Reinigungs- oder Filtermaterial verwendeten Ionenaustauscherharze werden nach ihrem Gebrauch einer Endlagerung zugeführt. Feinkörnige oder pulverför ige Ionenaustauscherharze können dabei einer chemischen oder thermischen Behandlung unterzogen werden, die eine Reduktion ihres Quellvermögens bewirkt. Nach einer derartigen Reduktion des Quellvermögens des jeweiligen Ionenaustauscherharzes ist eine Einbin- düng des Ionenaustauscherharzes in eine Zement- oder Bitumenmatrix möglich, ohne daß die Matrix durch Quellen der Ionenaustauscherharze zerstört wird. Auf diese Weise ist ein pulverförmiges Ionenaustauscherharz besonders gut endlagerfähig. Bei einem grobkörnigen Ionenaustauscherharz oder bei einem Kugelharz hingegen ist durch eine chemische oder thermische Behandlung nur eine begrenzte Reduktion des Quellvermögens erreichbar. Diese Ionenaustauscherharze werden daher übli- cherweise in entwässerter oder getrockneter Form oder mittels eines Bindemittels zwischen- oder endgelagert. Bei einer der¬ artigen Lagerung ist jedoch bei Wasserzutritt ein unerwünschtes Quellen und damit eine Schädigung des Gebindes des lonen- austauscherharzes möglich.The ion exchange resins used as cleaning or filter material are disposed of after their use. Fine-grained or powdery ion exchange resins can be subjected to a chemical or thermal treatment that reduces their swelling capacity. After such a reduction in the swelling capacity of the respective ion exchange resin, it is possible to incorporate the ion exchange resin in a cement or bitumen matrix without the matrix being destroyed by swelling of the ion exchange resin. In this way, a powdered ion exchange resin is particularly good for final storage. In the case of a coarse-grained ion exchange resin or a spherical resin, on the other hand, a limited reduction in the swelling capacity can be achieved by chemical or thermal treatment. These ion exchange resins are therefore usually stored temporarily or in a dewatered or dried form or by means of a binder. In the case of such storage, however, undesired swelling and thus damage to the container of the ion exchange resin is possible when water enters.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung anzugeben, die eine besonders zuverlässige Zwischenoder Endlagerung auch von grobkörnigem Ionenaustauscherharz oder von Kugelharz ermöglicht.The invention is therefore based on the object of specifying a device which enables particularly reliable intermediate or final storage of coarse-grained ion exchange resin or of spherical resin.
Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung zur Aufbereitung von Ionenaustauscherharz aus einer kerntechnischen Anlagen gelöst, bei der zur Zerkleinerung des Ionenaus¬ tauscherharzes eine Mühle vorgesehen ist.This object is inventively achieved by a device for the preparation of ion exchange resin from a nuclear installations exchange resin for crushing the Ionenaus ¬ in which a mill is provided.
Die Erfindung geht dabei von der Überlegung aus, daß für eine besonders zuverlässige Zwischen- oder Endlagerung auch für grobkörniges Ionenaustauscherharz oder für Kugelharz eine Einbindung in eine Zement- oder Bitumenmatrix vorgesehen sein sollte. Dazu sollte eine geeignete Reduktion des Quellvermögens des Ionenaustauscherharzes bzw. des Kugelharzes sicher¬ gestellt sein. Das Quellvermögen kann dabei durch eine geeignete chemische oder thermische Behandlung analog der Behandlung eines feinkörnigen Ionenaustauscherharzes reduziert wer- den. Um eine derartige Reduzierung des Quellvermögens des grobkörnigen Ionenaustauscherharzes bzw. des Kugelharzes zu ermöglichen, sollte das grobkörnige Ionenaustauscherharz bzw. das Kugelharz in der Art einer Vorbehandlung zunächst zer¬ kleinert werden. Dazu sollte eine geeignete Zerkleinerungs- Vorrichtung vorgesehen sein. Als Zerkleinerungsvorrichtung ist zweckmäßigerweise insbesondere eine Scheibenmühle vorgesehen, die als Mahlelemente eine feststehende Statorscheibe und eine dieser gegenüber rotierende Rotorscheibe aufweist. In einem zwischen der Stator- scheibe und der Rotorscheibe vorgesehenen justierbaren Spalt kann die Zerkleinerung des Ionenaustauscherharzes aufgrund von Scher- und Schneidkräften erfolgen. Insbesondere aufgrund der physikalischen Eigenschaften des Ionenaustauscherharzes, nämlich aufgrund seiner Elastizität, hat sich die Verwendung einer Scheibenmühle bei der Zerkleinerung des Ionenaustauscherharzes als besonders wirkungsvoll erwiesen.The invention is based on the consideration that an integration into a cement or bitumen matrix should be provided for a particularly reliable intermediate or final storage also for coarse-grained ion exchange resin or for spherical resin. For this purpose, a suitable reduction in the swelling capacity of the ion exchange resin and the resin ball should be ensured ¬. The swelling capacity can be reduced by a suitable chemical or thermal treatment analogous to the treatment of a fine-grain ion exchange resin. To achieve such reduction in the swelling capacity to allow the coarse-grained ion exchange resin or the spherical resin, the coarse-grained ion exchange resin or the resin ball in the nature of a pretreatment should first zer ¬ be downsized. A suitable comminution device should be provided for this. As a comminution device, a disk mill is expediently provided in particular, which has a fixed stator disk as grinding elements and a rotor disk rotating relative to it. The crushing of the ion exchange resin can take place in an adjustable gap provided between the stator disk and the rotor disk due to shear and cutting forces. In particular due to the physical properties of the ion exchange resin, namely because of its elasticity, the use of a disk mill has proven to be particularly effective in comminuting the ion exchange resin.
Als Mahlelemente der Scheibenmühle sind vorzugsweise Korundscheiben vorgesehen. Für eine besonders zuverlässige Aufbe- reitung des Ionenaustauscherharzes ist die Scheibenmühle vorteilhafterweise in einen Umwälzkreislauf des Ionenaustauscherharzes geschaltet. Somit ist ein mehrmaliger Durchlauf des lonenaustauscherharzes durch die Scheibenmühle möglich, wobei insbesondere durch eine Variation des Spalts zwischen deren Mahlelementen eine von Durchlauf zu Durchlauf stärkere Zerkleinerung erreichbar ist. Das Ionenaustauscherharz ist nach einer ersten Zerkleinerung in einer Suspension pumpbar und somit in einem Umwälzkreislauf führbar, obwohl grobkörniges Ionenaustauscherharz oder Kugelharz üblicherweise sedi- mentiert.Corundum disks are preferably provided as grinding elements of the disk mill. For a particularly reliable preparation of the ion exchange resin, the disk mill is advantageously connected to a circulation circuit of the ion exchange resin. A repeated passage of the ion exchange resin through the disk mill is thus possible, in particular through a variation of the gap between the grinding elements of which a greater size reduction can be achieved from one passage to the next. After a first comminution, the ion exchange resin can be pumped in a suspension and thus can be guided in a circulating circuit, although coarse-grained ion exchange resin or spherical resin usually sediments.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß durch die Verwendung einer Scheibenmühle bei der Aufbereitung eines lonenaustauscherharzes aus einer kern- technischen Anlage eine Zerkleinerung des lonenaustauscherharzes mit besonders einfachen Mitteln möglich ist. Die Zerkleinerung kann dabei, insbesondere nach mehreren Durchläufen des lonenaustauscherharzes durch die Scheibenmühle, bis zu einer Korngröße des lonenaustauscherharzes von weniger als 200 μm durchgeführt werden. Das Quellvermögen eines derartig aufbereiteten lonenaustauscherharzes ist mittels einer ther¬ mischen oder chemischen Behandlung reduzierbar. Derartig aufbereitetes Ionenaustauscherharz in ehemals Kugelform ist somit einer besonders geeigneten Zwischen- oder Endlagerung, beispielsweise durch Einbinden in eine Zement- oder Bitumenmatrix, zuführbar.The advantages achieved by the invention are, in particular, that the use of a disk mill in the preparation of an ion exchange resin from a nuclear plant makes it possible to comminute the ion exchange resin with particularly simple means. The comminution can be carried out, in particular after several passes of the ion exchange resin through the disk mill, up to a grain size of the ion exchange resin of less than 200 μm. The swelling power of one such treated ion exchange resin is mixed by means of a ther ¬ or chemical treatment can be reduced. Ion exchange resin prepared in this way in the form of a sphere can thus be supplied to a particularly suitable intermediate or final storage, for example by incorporation into a cement or bitumen matrix.
Ein Ausführungsbeispiel der Erfindung wird anhand einer Zeichnung näher erläutert. Darin zeigt die Figur schematisch eine Vorrichtung zur Aufbereitung von Ionenaustauscherharz.An embodiment of the invention is explained in more detail with reference to a drawing. Therein the figure shows schematically a device for processing ion exchange resin.
Die Vorrichtung 1 gemäß der Figur ist zur Aufbereitung von Ionenaustauscherharz I aus einer nicht näher dargestellten kerntechnischen Anlage vorgesehen. Die Vorrichtung 1 umfaßt einen zur Aufnahme des lonenaustauscherharzes I vorgesehenen Aufnahmebehälter 2. Der Aufnahmebehälter 2 weist ein durch einen Motor 4 antreibbares Rührwerk 6 auf. Ausgangsseitig ist der Aufnahmebehälter 2 über eine durch ein Ventil 8 absperr¬ bare Leitung 10 mit einer Scheibenmühle 12 verbunden. Die Scheibenmühle 12 ist ihrerseits ausgangsseitig über eine Leitung 14 an einen Sammelbehälter 16 angeschlossen, der ein über einen Motor 18 antreibbares Rührwerk 20 aufweist. Der Sammelbehälter 16 ist ausgangsseitig an eine mit einem Ventil 21 absperrbare Leitung 22 angeschlossen, in die eine Pumpe 24 geschaltet ist. Die Leitung 22 ist in nicht näher dargestellter Weise an eine Vorrichtung zur Weiterbehandlung des lonenaustauscherharzes I angeschlossen.The device 1 according to the figure is provided for the treatment of ion exchange resin I from a nuclear plant, not shown in detail. The device 1 comprises a receiving container 2 provided for receiving the ion exchange resin I. The receiving container 2 has an agitator 6 which can be driven by a motor 4. On the output side of the receptacle 2 is connected via a shut-off by a valve 8 ¬ bare conduit 10 with a disk mill 12th The disk mill 12 is in turn connected on the output side via a line 14 to a collecting container 16 which has an agitator 20 which can be driven by a motor 18. On the output side, the collecting container 16 is connected to a line 22 which can be shut off by a valve 21 and into which a pump 24 is connected. The line 22 is connected in a manner not shown to a device for further treatment of the ion exchange resin I.
In Pumpenrichtung nach der Pumpe 24 zweigt von der Leitung 22 ein mit einem Ventil 26 absperrbares Leitungsteilstück 28 ab, das an die zwischen dem Aufnahmebehälter 2 und der Scheibenmühle 12 vorgesehene Leitung 10 angeschlossen ist. Mit anderen Worten: Die Scheibenmühle 12 ist in einen durch die Leitung 14, den Sammelbehälter 16, die Leitung 22, die Pumpe 24, das Leitungsteilstück 28 und die Leitung 10 gebildeten Umwälzkreis 30 geschaltet.In the pump direction after the pump 24, a line section 28, which can be shut off with a valve 26, branches off from the line 22 and is connected to the line 10 provided between the receptacle 2 and the disk mill 12. In other words: the disk mill 12 is in a through the line 14, the collecting container 16, the line 22, the pump 24, the line section 28 and the line 10 formed circulation circuit 30 switched.
Die Scheibenmühle 12 umfaßt als erstes Mahlelement 32 eine Statorscheibe und als zweites Mahlelement 34 eine über einen Motor 36 antreibbare Rotorscheibe. Die Mahlelemente 32, 34 sind als Korundscheiben ausgebildet.The disk mill 12 comprises a stator disk as the first grinding element 32 and a rotor disk which can be driven by a motor 36 as the second grinding element 34. The grinding elements 32, 34 are designed as corundum disks.
Beim Betrieb der Vorrichtung 1 wird dem Aufnahmebehälter 2 über eine Zuführungsleitung 38 das Ionenaustauscherharz I zugeführt. Im Aufnahmebehälter 2 wird das Ionenaustauscherharz I als Harz-/Wassergemisch gerührt. Dazu wird dem Aufnahmebehälter 2 von einem Wasserbehälter 40 aus über eine Zuführungsleitung 42 Wasser W zugeführt.During operation of the device 1, the ion exchange resin I is supplied to the receiving container 2 via a supply line 38. In the receptacle 2, the ion exchange resin I is stirred as a resin / water mixture. For this purpose, water W is supplied to the receiving container 2 from a water container 40 via a feed line 42.
Das Ionenaustauscherharz I wird über die Leitung 10 der Scheibenmühle 12 zugeführt. In einem Spalt 44 zwischen den Mahlelementen 32, 34 der Scheibenmühle 12 wird das Ionenaustauscherharz I infolge von Scher- und Schneidkräften zerklei- nert. Nach seiner Zerkleinerung gelangt das Ionenaustauscherharz I' in den Sammelbehälter 16.The ion exchange resin I is fed to the disk mill 12 via the line 10. The ion exchange resin I is comminuted in a gap 44 between the grinding elements 32, 34 of the disk mill 12 as a result of shear and cutting forces. After comminution, the ion exchange resin I 'arrives in the collecting container 16.
Nach mindestens einem Durchlauf durch die Scheibenmühle 12 ist das zerkleinerte Ionenaustauscherharz I' in einer Suspen- sion pumpbar und somit mittels der Pumpe 24 über den Umwälzkreis 30 der Scheibenmühle 12 für einen erneuten Durchlauf zuführbar. Durch Modifikation der Breite des Spalt 44 ist dabei bei einem weiteren Durchlauf durch die Scheibenmühle 12 eine weitergehende Zerkleinerung möglich. Die Zerkleinerung des lonenaustauscherharzes I wird dabei mittels mehrmaligem Durchlauf durch die Scheibenmühle 12 solange weitergeführt, bei eine vorgebbare Grenzkorngröße des lonenaustauscherharzes I' von beispielsweise etwa 200 μm unterschritten wird. Sobald dieser Fall eintritt, wird das zerkleinerte Ionenaustauscher- harz I' über die Leitung 22 einer weiteren Verarbeitung zuge- führt. Dort kann beispielsweise eine thermische und/oder eine chemische Behandlung zur Reduktion des Quellvermögens des zerkleinerten lonenaustauscherharzes I' vorgesehen sein. Insbesondere ist dabei eine Behandlung des zerkleinerten lonenaustauscherharzes I' analog zu einer Behandlung eines feinkörnigen lonenaustauscherharzes möglich. Abschließend kann die Einbindung des zerkleinerten lonenaustauscherharzes I' in eine Zement- oder Bitumenmatrix vorgesehen sein. After at least one pass through the disk mill 12, the comminuted ion exchange resin I 'can be pumped in a suspension and can thus be supplied to the disk mill 12 by means of the pump 24 via the circulation circuit 30 for a new pass. By modifying the width of the gap 44, further comminution is possible in a further pass through the disk mill 12. The crushing of the ion exchange resin I is continued by repeated passage through the disk mill 12 as long as the particle size of the ion exchange resin I 'falls below a predeterminable size limit of, for example, about 200 μm. As soon as this occurs, the comminuted ion exchange resin I 'is fed via line 22 for further processing. leads. A thermal and / or a chemical treatment for reducing the swelling capacity of the comminuted ion exchange resin I 'can be provided there, for example. In particular, treatment of the comminuted ion exchange resin I 'is possible analogously to treatment of a fine-grained ion exchange resin. Finally, the comminuted ion exchange resin I 'can be incorporated into a cement or bitumen matrix.
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19701929 | 1997-01-21 | ||
| DE19701929A DE19701929A1 (en) | 1997-01-21 | 1997-01-21 | Device for processing ion exchange resin |
| PCT/DE1998/000048 WO1998032136A1 (en) | 1997-01-21 | 1998-01-08 | Ion-exchange resin processing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0963588A1 true EP0963588A1 (en) | 1999-12-15 |
| EP0963588B1 EP0963588B1 (en) | 2005-08-03 |
Family
ID=7817897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98905223A Expired - Lifetime EP0963588B1 (en) | 1997-01-21 | 1998-01-08 | Ion-exchange resin processing device |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6422492B1 (en) |
| EP (1) | EP0963588B1 (en) |
| JP (1) | JP2001509268A (en) |
| CN (1) | CN1251200A (en) |
| DE (2) | DE19701929A1 (en) |
| ES (1) | ES2247677T3 (en) |
| WO (1) | WO1998032136A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477844B (en) * | 2009-01-07 | 2012-10-31 | 中国广东核电集团有限公司 | Loop sulfate pollution controlling method for starting process after nuclear plant major overhaul |
| US9192192B1 (en) * | 2012-01-30 | 2015-11-24 | Performance Plus Liquids, Inc. | Method and apparatus for treating low quality forage |
| DE102012012828A1 (en) * | 2012-06-28 | 2012-12-20 | Westinghouse Electric Germany Gmbh | Ion exchange resin processing device for purifying sewage water discharged from nuclear power plant, has pumping device that is provided for feeding aqueous ion exchange resin suspension from tank to grinder |
| DE102021004501A1 (en) * | 2021-09-04 | 2023-03-09 | Westinghouse Electric Germany Gmbh | Ion exchange resin treatment system and method therefor |
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|---|---|---|---|---|
| CH592192B5 (en) * | 1975-07-07 | 1977-10-14 | Ciba Geigy Ag | |
| JPS5475000A (en) * | 1977-11-28 | 1979-06-15 | Hitachi Ltd | Method of treating radioactive waste |
| JPS6012366B2 (en) * | 1977-12-20 | 1985-04-01 | 関西電力株式会社 | Continuous atomization method for radioactive granular resin |
| JPS5931040B2 (en) * | 1980-09-12 | 1984-07-30 | 株式会社日立製作所 | Radioactive waste granulation equipment |
| US4569787A (en) * | 1982-06-23 | 1986-02-11 | Hitachi, Ltd. | Process and apparatus for treating radioactive waste |
| US4752298A (en) * | 1985-11-25 | 1988-06-21 | Ciba-Geigy Corporation | Storage-stable formulations of water-insoluble or sparingly water-soluble dyes with electrolyte-sensitive thickeners: polyacrylic acid |
| JPS63214386A (en) * | 1987-03-03 | 1988-09-07 | Fuji Electric Co Ltd | Waste ion exchange resin treatment system |
| DE4137947C2 (en) * | 1991-11-18 | 1996-01-11 | Siemens Ag | Processes for the treatment of radioactive waste |
| US5564103A (en) * | 1995-01-30 | 1996-10-08 | Westinghouse Electric Corporation | Reducing the volume of depleted ion exchange bead resin |
-
1997
- 1997-01-21 DE DE19701929A patent/DE19701929A1/en not_active Withdrawn
-
1998
- 1998-01-08 WO PCT/DE1998/000048 patent/WO1998032136A1/en not_active Ceased
- 1998-01-08 CN CN98801715A patent/CN1251200A/en active Pending
- 1998-01-08 EP EP98905223A patent/EP0963588B1/en not_active Expired - Lifetime
- 1998-01-08 JP JP53350598A patent/JP2001509268A/en active Pending
- 1998-01-08 ES ES98905223T patent/ES2247677T3/en not_active Expired - Lifetime
- 1998-01-08 DE DE59812977T patent/DE59812977D1/en not_active Expired - Lifetime
-
1999
- 1999-07-21 US US09/358,290 patent/US6422492B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9832136A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2247677T3 (en) | 2006-03-01 |
| CN1251200A (en) | 2000-04-19 |
| DE19701929A1 (en) | 1998-07-23 |
| DE59812977D1 (en) | 2005-09-08 |
| US6422492B1 (en) | 2002-07-23 |
| WO1998032136A1 (en) | 1998-07-23 |
| JP2001509268A (en) | 2001-07-10 |
| EP0963588B1 (en) | 2005-08-03 |
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