EP1089296B1 - Installation for handling radioactively charged waste water - Google Patents
Installation for handling radioactively charged waste water Download PDFInfo
- Publication number
- EP1089296B1 EP1089296B1 EP00116503A EP00116503A EP1089296B1 EP 1089296 B1 EP1089296 B1 EP 1089296B1 EP 00116503 A EP00116503 A EP 00116503A EP 00116503 A EP00116503 A EP 00116503A EP 1089296 B1 EP1089296 B1 EP 1089296B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tank
- radioactivity
- nuclides
- sewage
- collecting
- 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.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/20—Disposal of liquid waste
- G21F9/22—Disposal of liquid waste by storage in a tank or other container
Definitions
- the invention relates to a device for the Handling radioactive doped waste water, in particular by radionuclides in medical therapy and Diagnostics, via decay systems with intermediate storage of waste water in collecting tanks and finding the approved radioactivity before being discharged into a Drains.
- radionuclides that are used metabolic diseases (functional diagnostics) or local defects (localization diagnostics) too diagnose or inflammation or malformation to be able to target therapy.
- the patient applied radionuclides are predominantly based on eliminated naturally.
- JOD-131 is the very low activity concentration of 7 Bq per liter.
- the necessary cooldowns are usually at least 16 HWZ, ie around 130 days for JOD-131.
- the decay factors have powers of 10- 5 or 10- 6 .
- the object of the invention is to provide a device generic type to improve with little Effort a relatively precise capture of the content of To enable collection containers in a simple manner and to make optimal use of a limited storage capacity, to optimize medical treatment, as well as a Compliance with the specified regulations enable.
- the waste water can be fed to a buffer tank with the interposition of a measuring tank an integrated probe for radioactivity and / or Nuclide determination in a collection tank can be emptied in batches and that the determined Measurement data from an assigned control and computing unit for volume and activity accounting of the Collecting tanks can be fed, in comparison to one set radioactivity after a in advance Calculable cooldown of the collecting tank can be emptied is.
- the measured values are compared to a subsequent one Activity measurement by many before the cooldown ends Orders of magnitude higher, the statistics of stochastic Events radioactivity is significantly better. It there are much greater measuring accuracies and skillful disposition of the chosen collection tanks higher and wastewater and activity throughputs or shorter storage times also achieved.
- An advantageous training is that several Collection tanks are arranged in parallel.
- the arranged in parallel Collection tanks each for different heights Activities and / or different nuclides arranged and can be loaded via the control and computing unit are.
- a favorable training is created in that the buffer tank is designed as part of a vacuum system is.
- the measurement data of Measuring tanks can be fed into the control and computing unit, the radioactivities and / or nuclides of the ingested Wastewater from the collection container and after one predetermined decay time via a computer program Derivation after reaching the set values is controllable.
- the feces are considered Waste water from a toilet 30 and a buffer tank 1 fed.
- the buffer tank 1 is either as Gravity tank or vacuum tank executed.
- the waste water in a measuring tank 19 transferred to an integrated measuring probe 20 for Has radioactivity determination.
- the corresponding Measured values are sent to a control and computing unit 31 fed and processed.
- the Measuring tank 19 emptied and the waste water is thus a selected collection tank 32 in batches supplied, now the required measurement before Start of storage was carried out.
- the on this Way in the collection tank 32 captured nuclides and Activities are therefore necessary Cooldown on the control and computing unit 31 in calculable in advance.
- the control and computing unit 31 is in accordance with the Preset requirements, and in a known manner becomes a necessary valve and pump control performed.
- valve positions are detected and valve controls carried out according to the program become.
- the entire system is controlled by a PLC control that simplifies handling and management switched on a PC visualization becomes.
- a buffer tank 1 is placed under vacuum.
- An in the circuit switched on ball valve 10 of the Pump line is open as well as with a Check valve 9 provided and the air is over a filter 14 and a heat exchanger 29 for Warming the air to prevent one Pumped condensate. Possibly nevertheless emerged Condensate is returned to the buffer tank.
- the Pressure conditions in the buffer tank 1 are indicated by a Pressure switch 7 regulated.
- the resulting vacuum is indicated by a manometer 6.
- One in this Measuring line arranged solenoid valve 8 is only for Making an external connection open when the Buffer tank 1 via an open gate valve 11 is pumped out with a sewage pump 3 in total.
- the waste water reaches an open ball valve 4 an inlet 5 in the buffer tank 1, the Gate valve 11 is closed.
- the buffer tank 1 has sensors 15, 16 and 17 for the Level, the sensor 15 being used for the measurement sufficient filling indicates, the sensor 16 the lower Level and sensor 17 reports the overfill.
- the Solenoid valves 24 and 25 for filling in the Connecting lines of the measuring tank 19 opened.
- a metering pump 18 is used, if there is no natural level compensation.
- the valves 24 and 25 closed and via the measuring probe 20 the activity is determined.
- the Measuring container 19 can also with compressed air, which is introduced directly via the valve 22, in the Empty the pipeline to the collecting tank 32.
- the measuring volume of the measuring tank 19 can be smaller than the volume of the entire pipe content up to Collection tank 32, so this may occur measured volume only with the next batch in the Collection tank 32 a.
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Measurement Of Radiation (AREA)
- External Artificial Organs (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung für die Handhabung radioaktiv dotierter Abwässer, insbesondere durch Radionuklide bei der medizinischen Therapie und Diagnostik, über Abklinganlagen mit Zwischenlagerung von Abwässern in Sammeltanks und Feststellung der zugelassenen Radioaktivität vor Ableitung in eine Kanalisation.The invention relates to a device for the Handling radioactive doped waste water, in particular by radionuclides in medical therapy and Diagnostics, via decay systems with intermediate storage of waste water in collecting tanks and finding the approved radioactivity before being discharged into a Drains.
Es besteht im Krankenhausbereich in der Humanmedizin das Problem der Entsorgung der bei den Behandlungen anfallenden offenen Radionuklide, die verwendet werden, um Stoffwechselerkrankungen (Funktionsdiagnostik) oder lokale Defekte (Lokalisationsdiagnostik) zu diagnostizieren oder Entzündungen oder Mißbildungen gezielt therapieren zu können. Die dem Patienten applizierten Radionuklide werden überwiegend auf natürlichem Wege ausgeschieden.It exists in the hospital area in human medicine the problem of disposing of the treatments resulting open radionuclides that are used metabolic diseases (functional diagnostics) or local defects (localization diagnostics) too diagnose or inflammation or malformation to be able to target therapy. The patient applied radionuclides are predominantly based on eliminated naturally.
Die Aktivitäten haben teilweise erhebliche Größenordnungen, insbesondere werden bei höheren regelmäßigen Patientenanzahlen und ganz besonders bei therapeutischer Anwendung beträchtliche Aktivitäten akkumuliert, mit denen die Umwelt beständig belastet wird.Some of the activities have been significant Orders of magnitude, especially at higher ones regular patient numbers and especially with therapeutic application considerable activity accumulated with which the environment is constantly burdened becomes.
Zulässige Umweltbelastungen sind in der StrSchV (Strahlenschutzverordnung) festgelegt. Die Genehmigungsbehörden für den Umgang mit radioaktiven Stoffen nennen individuell festgelegte Werte in ihren Zulassungen.Permitted environmental pollution are in the StrSchV (Radiation Protection Ordinance). The Licensing authorities for the handling of radioactive Fabrics name individually defined values in their Approvals.
Die Vorschriften regeln, daß derjenige, welcher eine Genehmigung für den Umgang mit Radionukliden besitzt und den Umgang durchführt, sicherzustellen hat, daß die in der StrSchV oder der Umgangsgenehmigung genannten Werte eingehalten, insbesondere nicht überschritten werden und diese nach dem Stand von Wissenschaft und Technik so niedrig wie möglich und wirtschaftlich vertretbar gehalten werden.The regulations stipulate that the one who has a Approved to handle radionuclides and the handling, has to ensure that the mentioned in the StrSchV or the handling permit Compliance with values, especially not exceeded and this according to the state of science and Technology as low as possible and economical be held reasonable.
Die regelmäßige Bilanzierung aller vom Lieferanten erhaltenen, an Patienten applizierten oder im Labor verbrauchten Nuklide und Aktivitäten und aller intern oder extern an die Umwelt abgegebenen Radioaktivitäten weist generell sowohl in der Diagnostik wie in der Therapie bei praktisch allen Institutionen beträchtliche Mängel auf. Hierbei kann das Argument, es handele sich fast immer um kurzlebige (kurze Halbwertzeiten) Nuklide, nicht akzeptiert werden, da ja ein ständiger Nachschub erfolgt und dieser höher sein kann als der physikalisch-radioaktive Zerfall.The regular balancing of all from the supplier received, applied to patients or in the laboratory spent nuclides and activities and all internally or radioactivity released externally to the environment generally shows both in diagnostics and in Therapy in practically all institutions considerable shortcomings. Here, the argument it are almost always short-lived (short Half-lives) Nuclides, not accepted, since yes there is a constant replenishment and this is higher can be called the physical-radioactive decay.
Nur für Therapieabteilungen besteht die unumgängliche Vorschrift, Fäkalien und auch Wasch- oder Duschwasser aufzufangen und mindestens solange zu lagern, bis die höchste zulässige Aktivitätskonzentration und bis für alle hierbei abgelassenen Abwässer im Jahr eine Gesamtaktivität unterschritten wird.The only essential is for therapy departments Regulation, faeces and also wash or shower water catch and store at least until the highest permissible activity concentration and up to all wastewater discharged in the year one Overall activity is undercut.
Es ist bekannt, daß die Aktivitäten der in Sammelbehältern gelagerten Abwässer vor dem Ablassen durch einzelne Probenentnahmen oder durch kontinuierliche Durchflußmessung während eines kompletten Umpumpvorgangs oder durch großvolumige Detektoren jedes Sammeltanks ermittelt werden. Es handelt sich beispielsweise bei JOD-131 um die sehr geringen Aktivitätskonzentrationen von 7 Bq pro Liter. Sowohl bei der Probenentnahme als auch bei der Durchflußmessung oder der "Gesamt"-Messung entstehen ganz erhebliche Meßunsicherheiten infolge der sehr geringen Aktivitätskonzentrationen, der Inhomogenität der Fäkalien oder der ungenügenden Verweildauer des Volumenelementes im Durchflußzähler oder der nicht kalkulierbaren Selbstabsorption im Medium Fäkalie bei der "Gesamt"-Messung. Die notwendigen Abklingzeiten betragen in der Regel mindestens 16 HWZ, d.h. bei JOD-131 rund 130 Tage. Die Abklingfaktoren haben Potenzen von 10-5 oder 10-6.It is known that the activities of the wastewater stored in collecting tanks are determined by individual sampling or by continuous flow measurement during a complete pumping process or by large-volume detectors of each collecting tank before they are discharged. For example, JOD-131 is the very low activity concentration of 7 Bq per liter. Considerable measurement uncertainties arise due to the very low activity concentrations, the inhomogeneity of the faeces or the inadequate dwell time of the volume element in the flow meter or the incalculable self-absorption in the medium faecal matter in the case of the "total", both during sampling and during flow measurement or the "total" measurement "-Measurement. The necessary cooldowns are usually at least 16 HWZ, ie around 130 days for JOD-131. The decay factors have powers of 10- 5 or 10- 6 .
Die Aufgabe der Erfindung ist es, eine Vorrichtung der gattungsgemäßen Art zu verbessern, um mit geringem Aufwand eine relativ genaue Erfassung des Inhaltes von Sammelbehältern auf einfache Weise zu ermöglichen und eine beschränkte Lagerkapazität optimal auszunutzen, den medizinischen Umgang zu optimieren, sowie eine Einhaltung der vorgegebenen Bestimmungen zu ermöglichen.The object of the invention is to provide a device generic type to improve with little Effort a relatively precise capture of the content of To enable collection containers in a simple manner and to make optimal use of a limited storage capacity, to optimize medical treatment, as well as a Compliance with the specified regulations enable.
Die Lösung dieser Aufgabe erfolgt erfindungsgemäß dadurch, daß das Abwasser einem Puffertank zuführbar ist, der unter Zwischenschaltung eines Meßtanks mit einer integrierten Meßsonde zur Radioaktivitätsund/oder Nuklidbestimmung in einen Sammeltank chargenweise entleerbar ist und daß die ermittelten Meßdaten einer zugeordneten Steuer- und Recheneinheit zur Volumen- und Aktivitätenbilanzierung des Sammeltanks zuführbar sind, wobei im Abgleich zu einer eingestellten Radioaktivität nach einer im Voraus errechenbaren Abklingzeit der Sammeltank entleerbar ist.This object is achieved according to the invention in that the waste water can be fed to a buffer tank with the interposition of a measuring tank an integrated probe for radioactivity and / or Nuclide determination in a collection tank can be emptied in batches and that the determined Measurement data from an assigned control and computing unit for volume and activity accounting of the Collecting tanks can be fed, in comparison to one set radioactivity after a in advance Calculable cooldown of the collecting tank can be emptied is.
Der Vorteil dieser Ausbildung besteht darin, daß die zugeführten Abwässer zum Sammeltank und ihre Aktivitäten genau erfaßbar sind. Durch die Messung vor Beginn der Lagerung sind somit die aufgefangenen Nuklide und Aktivitäten explizit bekannt. Die notwendige Abklingzeit ist unmittelbar vorauskalkulierbar; damit wird auch der Umfang des genehmigten Umgangs mit Radionukliden zu jeder Zeit im voraus konkret beschränk- oder erweiterbar.The advantage of this training is that the fed waste water to the collection tank and their Activities can be recorded precisely. By measuring before The beginning of storage are thus the captured ones Nuclides and activities explicitly known. The necessary cooldown is immediate vorauskalkulierbar; this also increases the scope of the approved handling of radionuclides at any time in the can be limited or expanded in advance.
Die Meßwerte sind gegenüber einer nachträglichen Aktivitätsmessung vor Abschluß der Abklingzeit um viele Größenordnungen höher, die Statistik der stochastischen Ereignisse Radioaktivität ist signifikant besser. Es ergeben sich viel größere Meßgenauigkeiten und geschickte Disposition der gewählten Sammeltanks werden höhere und Abwasser- und Aktivitätendurchsätze oder auch kürzere Lagerzeiten erzielt.The measured values are compared to a subsequent one Activity measurement by many before the cooldown ends Orders of magnitude higher, the statistics of stochastic Events radioactivity is significantly better. It there are much greater measuring accuracies and skillful disposition of the chosen collection tanks higher and wastewater and activity throughputs or shorter storage times also achieved.
Da die Gesamtaktvitäten der großen Sammeltanks im voraus genau berechnet werden, kann darauf verzichtet werden, in den Abwässern vor dem Abpumpen durch Rühroder andere Mischverfahren eine sicher homogene Aktivitätenverteilung zu erzwingen, wie es bei nachträglichen Meßverfahren unumgänglich notwendig, aber in der Praxis realistisch nicht erreichbar ist.Since the overall activities of the large collection tanks in the can be calculated precisely in advance, this can be dispensed with in the waste water before being pumped out by stirring or other mixing methods a certainly homogeneous To force activity distribution, as is the case with subsequent measurement procedures absolutely necessary, but is not realistically achievable in practice.
Die rechtzeitige Kalkulation mit verschiedenen Nukliden und unterschiedlichen Aktivitäten macht es möglich, die Beschickung der Sammeltanks der Anlage selektiv und nicht zyklisch zu wählen. Timely calculation with different nuclides and different activities makes it possible to Selective and not to choose cyclically.
Eine vorteilhafte Ausbildung besteht darin, daß mehrere Sammeltanks parallel angeordnet sind. In Weiterbildung ist vorgesehen, daß die parallel angeordneten Sammeltanks jeweils für unterschiedlich hohe Aktivitäten und/oder verschiedene Nuklide angeordnet und über die Steuer- und Recheneinheit beschickbar sind.An advantageous training is that several Collection tanks are arranged in parallel. In further training it is intended that the arranged in parallel Collection tanks each for different heights Activities and / or different nuclides arranged and can be loaded via the control and computing unit are.
Eine günstige Ausbildung wird dadurch geschaffen, daß der Puffertank als Teil einer Vakuumanlage ausgebildet ist.A favorable training is created in that the buffer tank is designed as part of a vacuum system is.
Um eine vorteilhafte Erfassung und Steuerung zu gewährleisten, wird vorgeschlagen, daß die Meßdaten des Meßtanks in die Steuer- und Recheneinheit einspeisbar, die Radioaktivitäten und/oder Nuklide der aufgenommenen Abwässer der Sammelbehälter bilanziert und nach einer vorgegebenen Abklingzeit über ein Rechnerprogramm eine Ableitung nach Erreichen der eingestellten Werte steuerbar ist.In order to provide advantageous detection and control ensure, it is proposed that the measurement data of Measuring tanks can be fed into the control and computing unit, the radioactivities and / or nuclides of the ingested Wastewater from the collection container and after one predetermined decay time via a computer program Derivation after reaching the set values is controllable.
In der Zeichnung sind Ausführungsbeispiele der Erfindung schematisch dargestellt. Es zeigen:
- Fig. 1
- eine Prinzipdarstellung einer Ausbildung mit zwei parallelen Sammeltanks
- Fig. 2
- eine konkretisierte Ausbildung als Vakuumanlage ohne dargestellter Steuer- und Recheneinheit.
- Fig. 1
- a schematic diagram of an education with two parallel collection tanks
- Fig. 2
- a specific training as a vacuum system without shown control and computing unit.
Bei der dargestellten Anordnung werden die Fäkalien als
Abwasser von einer Toilette 30 einem Puffertank 1
zugeführt. Hierbei ist der Puffertank 1 entweder als
Schwerkraftbehälter oder Vakuumbehälter ausgeführt. Aus
dem Puffertank 1 werden die Abwässer in einen Meßtank
19 überführt, der eine integrierte Meßsonde 20 zur
Radioaktivitätsbestimmung aufweist. Die entsprechenden
Meßwerte werden einer Steuer- und Recheneinheit 31
zugeführt und verarbeitet. Anschließend wird der
Meßtank 19 entleert und die Abwässer werden somit
chargenweise einem ausgewählten Sammeltank 32
zugeführt, wobei nunmehr die erforderliche Messung vor
Beginn der Lagerung durchgeführt wurde. Die auf diese
Weise im Sammeltank 32 aufgefangenen Nuklide und
Aktivitäten sind somit bezüglich der notwendigen
Abklingzeit über die Steuer- und Recheneinheit 31 im
voraus kalkulierbar.In the arrangement shown, the feces are considered
Waste water from a
Wenn die geforderten Werte im Sammeltank 32 erreicht
sind, werden die gesammelten Abwässer über eine Pumpe
33 in eine Kanalisation 34 geleitet.When the required values in the collecting tank reach 32
the collected wastewater is pumped
33 passed into a
Die Steuer- und Recheneinheit 31 ist entsprechend den
Erfordernissen voreingestellt, und in bekannter Weise
wird eine erforderliche Ventil- und Pumpensteuerung
vorgenommen.The control and
In der Ausführung gemäß Fig. 2 ist eine konkretisierte
Ausbildung ohne näher dargestellte Steuer- und
Recheneinheit 31 gezeigt, wobei Ventilstellungen erfaßt
und Ventilsteuerungen programmgemäß durchgeführt
werden. Die Steuerung des Gesamtsystems erfolgt durch
eine SPS-Steuerung, der zur Vereinfachung des Handlings
und Managements eine PC-Visualisierung zugeschaltet
wird.2 is a concrete one
Training without detailed tax and
Es ist hierbei vorgesehen, daß mit einem Vakuumerzeuger
2 ein Puffertank 1 unter Vakuum gesetzt wird. Ein in
den Kreislauf eingeschalteter Kugelhahn 10 der
Pumpenleitung ist geöffnet sowie mit einem
Rückschlagventil 9 versehen und die Luft wird über
einen Filter 14 und einem Wärmetauscher 29 zur
Erwärmung der Luft für die Verhinderung eines
Kondensats abgepumpt. Eventuell dennoch entstandenes
Kondensat wird in den Puffertank zurückgeführt. Die
Druckverhältnisse im Puffertank 1 werden durch einen
Druckschalter 7 geregelt. Das entstandene Vakuum wird
durch ein Manometer 6 angezeigt. Ein in dieser
Meßleitung angeordnetes Magnetventil 8 wird nur zur
Herstellung einer Außenverbindung geöffnet, wenn der
Puffertank 1 über einen geöffneten Absperrschieber 11
mit einer Abwasserpumpe 3 insgesamt abgepumpt wird.It is provided that with a vacuum generator
2 a
Die Abwässer gelangen über einen geöffneten Kugelhahn 4
eines Zulaufs 5 in den Puffertank 1, wobei der
Absperrschieber 11 geschlossen ist. Der Puffertank 1
besitzt entsprechend Sensoren 15,16 und 17 für den
Füllstand, wobei der Sensor 15 die für die Messung
hinreichene Füllung angibt, der Sensor 16 den unteren
Füllstand und Sensor 17 die Überfüllung meldet.The waste water reaches an
Wenn die Füllhöhe 15 erreicht wird, werden die
Magnetventile 24 und 25 zur Befüllung in den
Verbindungsleitungen des Meßtanks 19 geöffnet. Hierzu
wird gegebenenfalls eine Dosierpumpe 18 eingesetzt,
wenn ein natürlicher Niveauausgleich nicht erfolgt.
Nach Befüllung des Meßtanks 19 werden die Ventile 24
und 25 geschlossen und über die eingesetzte Meßsonde 20
die Aktivität ermittelt. Nunmehr wird der Meßtank 19
über die Pumpe 3 entleert, wobei die Magnetventile 22
und 27 in der Luftzuführung und Ableitung geöffnet
werden. Über das Ventil 22 kann somit Luft nachströmen,
und die gemessenen Abwässer können durch die Pumpe 3 in
eine Rohrleitung zum Sammeltank 32 gedrückt werden. Der
Meßbehälter 19 läßt sich auch mit Druckluft, welches
über das Ventil 22 unmittelbar eingeführt wird, in die
Rohrleitung zum Sammeltank 32 entleeren.When the
Das Meßvolumen des Meßtanks 19 kann kleiner sein als
das Volumen des gesamten Rohrinhaltes bis zum
Sammeltank 32, deshalb tritt gegebenenfalls das
gemessene Volumen erst mit der nächsten Charge in dem
Sammeltank 32 ein.The measuring volume of the
Dieser Vorgang wird solange wiederholt bis der untere
Füllstand 16 erreicht ist.This process is repeated until the lower one
Claims (5)
- Apparatus for handling sewage with a radioactive burden, in particular as a result of radioactive nuclides used for medical treatment and diagnostics, by means of decay installations with intermediate storage of sewage in collecting tanks and determination of the permitted radioactivity prior to disposal into a sewage system, characterized in that the sewage is suppliable to a buffer tank (1), which is dischargeable in batches via a measuring tank (19) having an integrated measurement probe (20) for radioactivity and/or nuclide determination into a collecting tank (32), and that the determined measurement data are feedable to an associated control and computing unit (31) for assessment of the volume and activity of the collecting tank (32), wherein upon adjustment to a set radioactivity after a precalculable decay time the collecting tank (32) is dischargeable.
- Apparatus according to claim 1, characterized in that a plurality of collecting tanks (32) are arranged in parallel.
- Apparatus according to claim 1 or 2, characterized in that the collecting tanks (32) arranged in parallel are disposed in each case for different levels of radioactivity and/or different nuclides and chargeable by means of the control and computing unit (31).
- Apparatus according to one of claims 1 to 3, characterized in that the buffer tank (1) is designed as part of a vacuum system.
- Apparatus according to one of claims 1 to 4,
characterized in that the measurement data of the measuring tank (19) are feedable into the control and computing unit (31), the radioactive levels and/or nuclides of the received sewage of the collecting tanks (32) are assessed and after a preset decay time by means of a computer program a disposal after attainment of the set values is controllable.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19946392A DE19946392C2 (en) | 1999-09-28 | 1999-09-28 | Device for the handling of radioactive doped waste water |
DE19946392 | 1999-09-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1089296A1 EP1089296A1 (en) | 2001-04-04 |
EP1089296B1 true EP1089296B1 (en) | 2004-02-25 |
Family
ID=7923544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00116503A Expired - Lifetime EP1089296B1 (en) | 1999-09-28 | 2000-07-31 | Installation for handling radioactively charged waste water |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1089296B1 (en) |
AT (1) | ATE260510T1 (en) |
DE (2) | DE19946392C2 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2551390A1 (en) * | 1975-11-15 | 1977-05-26 | Rautenbach Robert | Decontaminating radioactive waste water - in plant contg. supply tank placed above turbulent delay tank emptying into collecting tank |
DE2851781A1 (en) * | 1978-11-30 | 1980-06-04 | Frieseke & Hoepfner Gmbh | Radioactive sewage delay-tank system for activity control - esp. for use with water-conserving toilets in nuclear therapy wards |
JPS61155979A (en) * | 1984-12-28 | 1986-07-15 | Nippon Atom Ind Group Co Ltd | Apparatus for measuring radioactivity |
DE3830839A1 (en) * | 1988-09-10 | 1990-03-15 | Wiederaufarbeitung Von Kernbre | METHOD AND DEVICE FOR MONITORING THE DELIVERY OF LIQUIDS |
DE4016116A1 (en) * | 1990-05-18 | 1991-11-21 | Georg Kinzler | Continuous waste water disinfection - using indicator to monitor disinfection dwell time |
-
1999
- 1999-09-28 DE DE19946392A patent/DE19946392C2/en not_active Expired - Fee Related
-
2000
- 2000-07-31 DE DE50005396T patent/DE50005396D1/en not_active Expired - Fee Related
- 2000-07-31 EP EP00116503A patent/EP1089296B1/en not_active Expired - Lifetime
- 2000-07-31 AT AT00116503T patent/ATE260510T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE260510T1 (en) | 2004-03-15 |
DE19946392A1 (en) | 2001-04-12 |
EP1089296A1 (en) | 2001-04-04 |
DE50005396D1 (en) | 2004-04-01 |
DE19946392C2 (en) | 2003-04-24 |
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