Stack effluent monitoring for an operating four reactor unit Candu Nuclear Station
Gaseous effluents from an operating four reactor unit CANDU power station are monitored for radioactive particulates, iodines, noble gases and tritium to ensure compliance with approved derived emission limits. The four types of stack effluent monitors used on each of ten stacks are described. The total stack flow at a four reactor unit station is about 10 times that at a single unit station, hence there is the need for monitors with an order of magnitude greater sensitivity at the four unit stations. This need has been met by optimizing standard measurement techniques for particulate and iodine detection, and by introducing a novel technique for noble gas loss determination that provides several orders of magnitude increased sensitivity over traditional methods of detection. In addition, the use of a simple silica-gel desiccant to extract moisture from the sample stream has proven highly accurate and reliable for tritium monitoring purposes.
- Research Organization:
- Atomic Energy of Canada Ltd. CANDU Operations Sheridan Park Research Community Mississauga, Ontario L5K 1B2
- OSTI ID:
- 6918292
- Report Number(s):
- CONF-831015-
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. 31:1; Conference: Nuclear science symposium, San Francisco, CA, USA, 19 Oct 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AIR POLLUTION MONITORS
DESIGN
SENSITIVITY
CANDU TYPE REACTORS
RADIOACTIVE EFFLUENTS
NUCLEAR POWER PLANTS
RADIATION MONITORS
RADIATION MONITORING
STACK DISPOSAL
DESICCANTS
GAS ANALYSIS
IODINE ISOTOPES
OPTIMIZATION
PARTICULATES
POLLUTION REGULATIONS
RARE GASES
SILICA GEL
STACKS
TRITIUM
WATER REMOVAL
ADSORBENTS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
ELEMENTS
FLUIDS
GASES
HEAVY WATER MODERATED REACTORS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
MANAGEMENT
MATERIALS
MEASURING INSTRUMENTS
MONITORING
MONITORS
NONMETALS
NUCLEAR FACILITIES
NUCLEI
ODD-EVEN NUCLEI
PARTICLES
POWER PLANTS
PRESSURE TUBE REACTORS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
REACTORS
REGULATIONS
REMOVAL
THERMAL POWER PLANTS
THERMAL REACTORS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
YEARS LIVING RADIOISOTOPES
500300* - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (-1989)
210400 - Power Reactors
Nonbreeding
Otherwise Moderated or Unmoderated
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments