Waste water monitoring in the Juelich Nuclear Research Center in 1986
Description
Due to slightly increased radioactivity values, two batches of a storage tank of 2000 m3 had to be decontaminated. Amounts of low-level radioactive waste water increased by 10% as compared with the last year (30 600 m3 in 1981, 21 500 m3 in 1986). The volume of low-level waste water collected in the receiver tanks increased by 17% over last year, and by 30% compared with the 1980 volume. Aggregate (β + EC) activity in the low-level liquid effluents was 573 GBq in the reporting year (mean value 559 GBq in the years 1983 to 1985). In 1986, the I-131 radioactivity in the liquid effluents from the medical department was 306 GBq, or 53.4%. All these effluents have again been led to the storage tanks of the TD-DE facilities, for interims storage and decay of short-lived radioactivity. The waste water volume received from external institutions was higher by 9%., and the contents of α-emitters were lower by 62%, of (β + EC)-emitters by 16%, and of tritium by 10%. The decontamination evaporators of KfA Juelich received 3.160 m3 of liquid effluents in the year under review, with an aggregate activity (without H3) of 262 GBq. The retention coefficient was 99.883%. (orig./HP)
Abstract (German)
Wegen leicht erhoehter Aktivitaetsfracht mussten zwei 2 000-m3-Speicherbeckenchargen dekontaminiert werden. Der Anfall von schwachaktivem Abwasser nahm um 10% gegenueber dem Vorjahr ab. Damit setzte sich der seit 1981 beobachtete Trend fort: 1981 fielen 30 600 m3, 1986 nur noch 21 500 m3 Abwasser an. Das Volumen der in den Auffanganlagen gesammelten schwachaktiven Abwaesser nahm gegenueber 1985 um 17%, gegenueber 1980 um 30% ab. Die mit allen schwachaktiven Abwaessern angefallene (β + EC)-Aktivitaet betrug im Berichtsjahr 573 GBq (in den Jahren 1983 bis 1985 im Mittel 559 GBq). 1986 belief sich der aus der Sonderklaeranlage (SKA) Medizin stammende I-131-Aktivitaetsanteil auf 306 GBq entsprechend 53,4%. Alle SKA-Chargen (insgesamt 636 m3; 20% mehr als 1985) wurden wieder zum Abklingenlassen der kurzlebigen Radioaktivitaet in der Behaelteranlage des TD-DE-Betriebsgebaeudes zwischengelagert. Im um 9% vergroesserten Abwasservolumen der Externen waren gegenueber dem Vorjahr um 62% weniger α-Strahler, um 16% weniger (β + EC)-Strahler und um 10% weniger Tritium enthalten. Den Kontaminationsverdampfern sind im Berichtsjahr 3160 m3 Abwasser mit einer Gesamtaktivitaet (ohne H-3) von 262 GBq zugeleitet worden. Der Rueckhaltegrad betrug 99,883%. (orig./HP)
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Additional details
Additional titles
- Original title (German)
- Die Abwasserueberwachung in der Kernforschungsanlage Juelich im Jahre 1986
Publishing Information
- Imprint Pagination
- 27 p.
- Report number
- KFA-DE-IB--3/87
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 19058540
- Subject category
- S61: RADIATION PROTECTION AND DOSIMETRY; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DECAY; EXPERIMENTAL DATA; IODINE 131; KERNFORSCHUNGSANLAGE JUELICH; LIQUID WASTES; LOW-LEVEL RADIOACTIVE WASTES; NUCLEAR MEDICINE; RADIATION MONITORING; RADIOACTIVE EFFLUENTS; RADIOACTIVE WASTE PROCESSING
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DATA; DAYS LIVING RADIOISOTOPES; GERMAN FR ORGANIZATIONS; INFORMATION; INTERMEDIATE MASS NUCLEI; IODINE ISOTOPES; ISOTOPES; MANAGEMENT; MATERIALS; MEDICINE; MONITORING; NATIONAL ORGANIZATIONS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; RADIOISOTOPES; WASTE MANAGEMENT; WASTE PROCESSING; WASTES