EP0724271A1 - Verfahren und Vorrichtung zur Behandlung radioaktiver Abfälle durch hydraulisches Bindemittel - Google Patents

Verfahren und Vorrichtung zur Behandlung radioaktiver Abfälle durch hydraulisches Bindemittel Download PDF

Info

Publication number
EP0724271A1
EP0724271A1 EP95440088A EP95440088A EP0724271A1 EP 0724271 A1 EP0724271 A1 EP 0724271A1 EP 95440088 A EP95440088 A EP 95440088A EP 95440088 A EP95440088 A EP 95440088A EP 0724271 A1 EP0724271 A1 EP 0724271A1
Authority
EP
European Patent Office
Prior art keywords
sludge
container
mixer
hydraulic binder
airlock
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
Application number
EP95440088A
Other languages
English (en)
French (fr)
Other versions
EP0724271B1 (de
Inventor
Philippe Grandsire
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rtc Realisations Techniques Et Commerciales
Original Assignee
Rtc Realisations Techniques Et Commerciales
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rtc Realisations Techniques Et Commerciales filed Critical Rtc Realisations Techniques Et Commerciales
Publication of EP0724271A1 publication Critical patent/EP0724271A1/de
Application granted granted Critical
Publication of EP0724271B1 publication Critical patent/EP0724271B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G21F9/008—Apparatus specially adapted for mixing or disposing radioactively contamined material
    • 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
    • G21F9/162—Processing by fixation in stable solid media in an inorganic matrix, e.g. clays, zeolites
    • G21F9/165—Cement or cement-like matrix

Definitions

  • the invention relates to a method and an installation for the treatment of radioactive residues in the form of sludge, ash, concentrates, corundum and various detritus, consisting in immobilizing them by means of a hydraulic binder in order to obtain a solid block. of defined mechanical resistance.
  • This invention will therefore find its application in the context of the reprocessing of radioactive waste.
  • residue such as evaporator concentrates, ash and other products used in the treatment, by spraying or filtration, for example, corundum, sand, etc. are also collected and then stored.
  • the solution according to the invention is a sludge treatment process consisting in immobilizing them in such a way that it is possible to store them without risk of contamination precisely thanks to the stability of the solid block resulting from this sludge immobilization process.
  • the invention relates to a process for treating radioactive residues in the form of sludge, ash, concentrates, corundum and various detritus, consisting in immobilizing them by means of a hydraulic binder, characterized in that mixes several types of radioactive residues which are distinguished by different water contents so as to obtain a sludge to be treated having an optimum water content corresponding, substantially, to the amount of water necessary for the hydration of the components of the hydraulic binder for curing the mixture.
  • the sludge and then the slurry-hydraulic binder mixture are kept under agitation in order to obtain and then maintain a certain level of homogeneity.
  • the present invention through the process and the installation allowing its implementation, makes it possible to envisage a real treatment of this radioactive waste.
  • the method is applied systematically to the treatment of sludge, whether it is sludge such as recovered through a settling tank or the like or obtained by water supply or corresponding to a mixture of sludge and dry residue.
  • This mixture of radioactive sludge and hydraulic binder is again made homogeneous by agitation, precisely so that this homogeneity is obtained in this solid block, after setting of said hydraulic binder.
  • the present invention through the process, aims to achieve an optimum from the point of view of the yield: quantity of sludge treated - final volume of sludge immobilized, and, at the same time, the quantity of hydraulic binder spoils.
  • the sludge to be treated has a low water content, it is necessary to add water which can be described as appropriate to the mixture in order to obtain the desired result. Under these conditions, it can be seen that, relative to the volume of the solid block obtained, the volume of sludge treated has not been optimized. In fact, by operating in this way, a given quantity of clean water added to the mixture was treated unnecessarily.
  • homogenized sludge is taken from one or more samples of an imposed volume, to which is added a prefixed quantity of hydraulic binder.
  • This mixture based on a sample of sludge is contained in a mold which, after immobilization of this sludge, allows easy demolding.
  • these tests on samples are followed by a full-scale test.
  • the quantity of sludge corresponding to the volume of the solid block that is to be produced is sampled.
  • the hydraulic binder in proportions as determined through the test carried out beforehand on a sample. It should be noted that at this stage, the water content can still be readjusted, particularly if it is less than the desired water content.
  • a batch of mud corresponds to the quantity of mud prepared in a container of a determined volume.
  • a defined quantity of mud is taken from the batch prepared for introduction into a mixer into which the hydraulic binder is also poured. After homogenization, the mixture is poured into a recyclable container: at this time, a handling hook is also introduced into this mud-hydraulic binder mixture; after verification of setting, the immobilized block is removed from the recyclable container and is introduced into a storage container which may contain several of these blocks.
  • This installation essentially comprises stirring means 1 making it possible to homogenize the sludge previously contained in drums 2.
  • This installation is also provided with a container 3 in which are discharged, after homogenization, the sludge contained in several drums 2 and corresponding to a batch 4 of sludge to be treated.
  • stirring means 5 which, again, have the function of homogenizing the batch of sludge introduced into this container 3.
  • This installation is also provided with a kneading unit 6 into which is introduced, according to a discontinuous cycle, a given quantity of sludge from the container 3, as well as the volume of hydraulic binder allowing, finally, to immobilize this defined amount of mud.
  • a molding unit 7 under this kneading unit 6 is arranged a molding unit 7 at which there is at least one container 24 capable of containing said immobilized hydraulic binder-binder mixture.
  • this installation also includes pumping means 9, 10, making it possible, respectively, to take the contents of the drums 2 with a view to introducing it into the container 3, then to take a determined quantity of homogenized sludge contained in this container 3 in order to transfer it to the kneading unit 6.
  • FIGS 1 and 2 schematically illustrate the entire installation.
  • this installation comprises, first of all, an intermediate airlock 11 in which the drums 2 are arranged, defining a batch of sludge to be treated 4 and coming from a storage room 12. Downstream of this intermediate airlock 11 is located the barrel opening airlock 13 in which the barrels 2 will be opened successively in order to homogenize their content which will then be removed via the pumping means 9 in order to transfer it to the container 3 located at an airlock 14 downstream.
  • control and test airlock 19 Inside this airlock are carried out the various radiological and pH for example, as well as tests on samples to check the compatibility of the sludge with the hydraulic binder.
  • stirring means 5 which, here again, can be in the form of a portable mixer 20, it a given quantity is taken from it in order to transfer it to a mixing unit 6.
  • This is, in fact, located in an airlock 21 downstream of the airlock 14 and includes a mixer 22 surmounting a support frame 23 under which can be placed a specific storage container 24 into which the homogenized mud-hydraulic binder mixture is poured in order to harden it.
  • the movements of the container 24 are facilitated by a raceway 29 on which it rests by means of suitable rolling means.
  • this container 24 is filled, it is closed by means of a cover, while the space preserved between this cover and the said solid block (s) is filled with an appropriate filling mortar.
  • ventilation means can be fitted.
  • Such ventilation means are, of course, specific to the field concerned. Thus, they necessarily include filtration means avoiding contamination of the outside atmosphere.
  • the hydraulic binder used in the treatment process according to the invention is preferably a mortar without shrinkage ready to use depending on the characteristics of the waste.
  • To this mortar can be added a number of additives necessary for the chemical stability of the immobilized sludge.
  • these are preferably concrete containers made of metallic fiber concrete capable of ensuring, at least partially, the function of confinement.
  • the packaging and / or treatment of solid waste taken from the drums 2 or the packaging and decontamination of the latter once emptied will be carried out according to traditional methods in the field considered. These operations are likely to be carried out in airlocks adjacent to those previously mentioned. In addition, this installation will preferably be completed by a specific room containing the radiological monitoring devices.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)
EP19950440088 1994-12-22 1995-12-21 Verfahren und Vorrichtung zur Behandlung radioaktiver Abfälle durch hydraulisches Bindemittel Expired - Lifetime EP0724271B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9415683A FR2728719A1 (fr) 1994-12-22 1994-12-22 Procede et installation pour le traitement des residus radioactifs sous forme de boues
FR9415683 1994-12-22

Publications (2)

Publication Number Publication Date
EP0724271A1 true EP0724271A1 (de) 1996-07-31
EP0724271B1 EP0724271B1 (de) 1999-04-07

Family

ID=9470269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950440088 Expired - Lifetime EP0724271B1 (de) 1994-12-22 1995-12-21 Verfahren und Vorrichtung zur Behandlung radioaktiver Abfälle durch hydraulisches Bindemittel

Country Status (4)

Country Link
EP (1) EP0724271B1 (de)
DE (1) DE69508910T2 (de)
ES (1) ES2129786T3 (de)
FR (1) FR2728719A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110600158A (zh) * 2019-10-18 2019-12-20 中核四川环保工程有限责任公司 残留泥浆回取装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2950467B1 (fr) 2009-09-23 2011-10-28 Baltymore Procede de traitement de materiaux solides radioactifs
CN110648777B (zh) * 2019-06-20 2022-07-29 中国辐射防护研究院 一种低pH值放射性废液的高效水泥固化处理方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2024498A (en) * 1978-07-01 1980-01-09 B & R Eng Ltd Method of Treating Radioactive Waste Material
EP0031879A1 (de) * 1979-12-20 1981-07-15 Kernforschungszentrum Karlsruhe Gmbh Einrichtung zum Einbetonieren von radioaktiven Abfällen in Abfallfässern
DE3343422A1 (de) * 1983-12-01 1985-06-20 Kernforschungsanlage Jülich GmbH, 5170 Jülich Verfahren zum konditionieren kontaminierten abfalls durch zementieren
GB2218256A (en) * 1988-05-04 1989-11-08 Wiederaufarbeitung Von Kernbre Method and apparatus for processing feed sludge.
DE4023118A1 (de) * 1990-07-20 1992-01-30 Kernforschungsz Karlsruhe Verfahren zum endlagern von schwach kontaminiertem bauschutt aus dem abriss kerntechnischer anlagen und vorrichtung zur durchfuehrung des verfahrens
JPH04221799A (ja) * 1990-12-25 1992-08-12 Toshiba Corp 放射性スラッジの処理方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2024498A (en) * 1978-07-01 1980-01-09 B & R Eng Ltd Method of Treating Radioactive Waste Material
EP0031879A1 (de) * 1979-12-20 1981-07-15 Kernforschungszentrum Karlsruhe Gmbh Einrichtung zum Einbetonieren von radioaktiven Abfällen in Abfallfässern
DE3343422A1 (de) * 1983-12-01 1985-06-20 Kernforschungsanlage Jülich GmbH, 5170 Jülich Verfahren zum konditionieren kontaminierten abfalls durch zementieren
GB2218256A (en) * 1988-05-04 1989-11-08 Wiederaufarbeitung Von Kernbre Method and apparatus for processing feed sludge.
DE4023118A1 (de) * 1990-07-20 1992-01-30 Kernforschungsz Karlsruhe Verfahren zum endlagern von schwach kontaminiertem bauschutt aus dem abriss kerntechnischer anlagen und vorrichtung zur durchfuehrung des verfahrens
JPH04221799A (ja) * 1990-12-25 1992-08-12 Toshiba Corp 放射性スラッジの処理方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 16, no. 571 (P - 1459) 11 December 1992 (1992-12-11) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110600158A (zh) * 2019-10-18 2019-12-20 中核四川环保工程有限责任公司 残留泥浆回取装置
CN110600158B (zh) * 2019-10-18 2024-03-29 中核四川环保工程有限责任公司 残留泥浆回取装置

Also Published As

Publication number Publication date
FR2728719A1 (fr) 1996-06-28
DE69508910T2 (de) 1999-09-30
FR2728719B1 (de) 1997-02-21
ES2129786T3 (es) 1999-06-16
DE69508910D1 (de) 1999-05-12
EP0724271B1 (de) 1999-04-07

Similar Documents

Publication Publication Date Title
EP0724271A1 (de) Verfahren und Vorrichtung zur Behandlung radioaktiver Abfälle durch hydraulisches Bindemittel
US4299722A (en) Introduction of fluent materials into containers
EP1648843B1 (de) Mischgerät für getrennten Festmüll
FR2482357A1 (fr) Procede et installation pour la solidification de dechets radio-actifs
US6929395B1 (en) Methods and apparatus for reclaiming components of concrete and other slurries
WO2007012741A1 (fr) Installation et procede de traitement de deblais limoneux
FR2782937A1 (fr) Procede de traitement de dechets par ajout d'une quantite d'au moins un reactif alcalin et dispositif pour sa mise en oeuvre
FR2642889A1 (fr) Procede de nettoyage de recipients contamines par une substance radioactive
JP2008241587A (ja) 放射性廃棄物の固化処理方法及び固化処理装置
FR3101006A1 (fr) Procédé de traitement de boues de ciment
BE1030053B1 (fr) Procédé et installation de traitement des eaux usées provenant des centrales de fabrication de béton
FR2702761A1 (fr) Système de traitement mécanique et chimique des eaux résiduaires issues de l'industrie du béton.
CN211329158U (zh) 一种混合均匀的三维混合机
EP2086891B1 (de) Verfahren und installation zur anaeroben behandlung von material mit hoher feststoffkonzentration
DE3934175C1 (en) Solid raw material melting appts. for perfumes mfr. - has container arranged inside microwave chamber and combined with stirrer
BE1030131B1 (nl) Werkwijze en inrichting voor het verwerken van vaste anorganische afvalstoffen
RU69065U1 (ru) Технологический комплекс по переработке нефтесодержащих отходов
JP5523237B2 (ja) 放射性廃棄物の固化処理方法
CN109607454B (zh) 一种溶液防凝固自动装瓶装置
JPH02171693A (ja) セメント混練機の洗浄廃水処理方法
JPH0484800A (ja) 放射性廃棄物の固化方法
JP3759517B2 (ja) 固体粒子の脱塩方法および脱塩装置並びにその脱塩装置を具える固体粒子のリサイクルシステム
SU1545138A1 (ru) Способ поинтервального отбора проб расслаивающейс и/или затвердевающей жидкости из емкости
KR101291393B1 (ko) 시멘트 고화 공정의 폐기물 처리 방법
CA2389885A1 (fr) Procede de coloration de beton avec un systeme de dosage, genre seringue, pour couleurs liquides

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19970120

17Q First examination report despatched

Effective date: 19980305

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES FR GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990407

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19990407

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990407

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69508910

Country of ref document: DE

Date of ref document: 19990512

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2129786

Country of ref document: ES

Kind code of ref document: T3

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19990407

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000103

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040102

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20040123

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20040212

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

BERE Be: lapsed

Owner name: REALISATIONS TECHNIQUES ET COMMERCIALES *RTC

Effective date: 20041231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050701

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20041222

BERE Be: lapsed

Owner name: REALISATIONS TECHNIQUES ET COMMERCIALES *RTC

Effective date: 20041231

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: SOCIETE DES TECHNIQUES EN MILIEU IONISANT STMI, FR

Effective date: 20130719

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20141231

Year of fee payment: 20