THE UPTAKE OF ZIRCONIUM$sup 95$ AND NIOBIUM$sup 95$ BY PORPHYRA SP
Technical Report
·
OSTI ID:4273196
Experiments carried out on the uptake of Zr/sup 95/ and Nb/sup 95/ by the edible seaweed, Porphyra umbilicalis, show that when the activity of the seawater is maintained at a constant level of 8.65 x 10/sup -3/ mu c/ml, concentration factors of 336 for zirconium and 435 for niobium are reached after 34 days. With the water activity constant at the lower level of 9.5 x 10/sup -4/ mu c/ml, the concentration factors for zirconium are 200 after 34 days and 230 after 73 days, and for niobium 420 after 34 days and 470 after 73 days. The release of zirconium and niobium was studied by placing drums of activated weed on the shore. Fifty per cent of the activity is lost after 6 days and 96 per cent after 65 days. The mode of uptake and methods of analysis are discussed. (auth)
- Research Organization:
- United Kingdom Atomic Energy Authority. Industrial Group. Windscale Works, Sellafield, Cumb., England
- NSA Number:
- NSA-13-008499
- OSTI ID:
- 4273196
- Report Number(s):
- RDB(W)/TN-187
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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