EP1089296B1 - Vorrichtung für die Handhabung radioaktiv dotierter Abwässer - Google Patents
Vorrichtung für die Handhabung radioaktiv dotierter Abwässer 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
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
- G21F9/04—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.
Landscapes
- 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)
Description
- Fig. 1
- eine Prinzipdarstellung einer Ausbildung mit zwei parallelen Sammeltanks
- Fig. 2
- eine konkretisierte Ausbildung als Vakuumanlage ohne dargestellter Steuer- und Recheneinheit.
Claims (5)
- 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, dadurch gekennzeichnet, daß das Abwasser einem Puffertank (1) zuführbar ist, der unter Zwischenschaltung eines Meßtanks (19) mit einer integrierten Meßsonde (20) zur Radioaktivitäts- und/oder Nuklidbestimmung in einen Sammeltank (32) chargenweise entleerbar ist und daß die ermittelten Meßdaten einer zugeordneten Steuerund Recheneinheit (31) zur Volumen- und Aktivitätenbilanzierung des Sammeltanks (32) zuführbar sind, wobei im Abgleich zu einer eingestellten Radioaktivität nach einer im Voraus errechenbaren Abklingzeit der Sammeltank (32) entleerbar ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mehrere Sammeltanks (32) parallel angeordnet sind.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die parallel angeordneten Sammeltanks (32) jeweils für unterschiedlich hohe Radioaktivitäten und/oder verschiedene Nuklide angeordnet und über die Steuer- und Recheneinheit (31) beschickbar sind.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Puffertank (1) als Teil einer Vakuumanlage ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die Meßdaten des Meßtanks (19) in die Steuer- und Recheneinheit (31) einspeisbar, die Radioaktivitäten und/oder Nuklide der aufgenommenen Abwässer der Sammelbehälter (32) bilanziert und nach einer vorgegebenen Abklingzeit über ein Rechnerprogramm eine Ableitung nach Erreichen der eingestellten Werte steuerbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19946392A DE19946392C2 (de) | 1999-09-28 | 1999-09-28 | Vorrichtung für die Handhabung radioaktiv dotierter Abwässer |
DE19946392 | 1999-09-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1089296A1 EP1089296A1 (de) | 2001-04-04 |
EP1089296B1 true EP1089296B1 (de) | 2004-02-25 |
Family
ID=7923544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00116503A Expired - Lifetime EP1089296B1 (de) | 1999-09-28 | 2000-07-31 | Vorrichtung für die Handhabung radioaktiv dotierter Abwässer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1089296B1 (de) |
AT (1) | ATE260510T1 (de) |
DE (2) | DE19946392C2 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2551390A1 (de) * | 1975-11-15 | 1977-05-26 | Rautenbach Robert | Anlage zur dekontaminierung radioaktiver abwaesser |
DE2851781A1 (de) * | 1978-11-30 | 1980-06-04 | Frieseke & Hoepfner Gmbh | Abklinganlage fuer radioaktiv beladene faekalabwaesser von wassersparenden toilettenanlagen |
JPS61155979A (ja) * | 1984-12-28 | 1986-07-15 | Nippon Atom Ind Group Co Ltd | 放射能測定装置 |
DE3830839A1 (de) * | 1988-09-10 | 1990-03-15 | Wiederaufarbeitung Von Kernbre | Verfahren und vorrichtung zum ueberwachen der abgabe von fluessigkeiten |
DE4016116A1 (de) * | 1990-05-18 | 1991-11-21 | Georg Kinzler | Verfahren und einrichtung zur desinfektion von mit mikroorganismen belasteten abwaessern |
-
1999
- 1999-09-28 DE DE19946392A patent/DE19946392C2/de not_active Expired - Fee Related
-
2000
- 2000-07-31 AT AT00116503T patent/ATE260510T1/de not_active IP Right Cessation
- 2000-07-31 DE DE50005396T patent/DE50005396D1/de not_active Expired - Fee Related
- 2000-07-31 EP EP00116503A patent/EP1089296B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19946392C2 (de) | 2003-04-24 |
DE50005396D1 (de) | 2004-04-01 |
EP1089296A1 (de) | 2001-04-04 |
DE19946392A1 (de) | 2001-04-12 |
ATE260510T1 (de) | 2004-03-15 |
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