Solid Radioactive Waste Strategy Report.pdf - UK EPR
Solid Radioactive Waste Strategy Report.pdf - UK EPR
Solid Radioactive Waste Strategy Report.pdf - UK EPR
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<strong>EPR</strong> <strong>UK</strong><br />
N° NESH-G/2008/en/0123<br />
REV. A PAGE 43 / 257<br />
6.3.4 Tank Sludges<br />
<strong>Waste</strong> Steam<br />
<strong>Waste</strong> Origin<br />
TABLE 6: WASTE STREAM DATASHEET FOR TANK SLUDGES<br />
Tank Sludges<br />
During operation of an <strong>EPR</strong>, particulates can settle<br />
as a sludge in the buffer and storage tanks<br />
associated with the water auxiliary circuits (e.g.<br />
Liquid <strong>Waste</strong> Treatment System, Liquid Effluents<br />
Release System etc.). These tanks are periodically<br />
cleaned out and the sludge accumulations removed<br />
for treatment as waste.<br />
<strong>Waste</strong> Physical Description<br />
A sludge consisting of settled metal oxide<br />
particulate.<br />
Nature of <strong>Radioactive</strong> Material<br />
Sludge is contaminated with activated corrosion<br />
products and fission products. Activation products<br />
and fission products, beta and beta/gamma<br />
emitters (hydrogen-3, cobalt-60, cobalt-58,<br />
manganese-54, zinc-65, silver-110m, antimony-<br />
125, caesium-134, caesium-137, beryllium-10,<br />
carbon-14, sodium-22, chlorine-36, calcium-41,<br />
iron-55, nickel-59, nickel-63, selenium-79,<br />
strontium-90, molybdenum-93, zirconium-93,<br />
niobium-94, technetium-99, palladium-107, silver-<br />
108m, tin-121m, tin-126, iodine-129, caesium-135,<br />
samarium-151) and a very low amount of alpha<br />
emitters.<br />
Annual Arising 1 m 3<br />
Total Arising 60 m 3<br />
<strong>Waste</strong> Classification at Time of Generation ILW / LLW<br />
Main Radionuclides<br />
Iron-55<br />
Cobalt-58<br />
Cobalt-60<br />
Zinc-65<br />
Nickel-63<br />
Hazardous Substances<br />
Boron: 1.000 ppm<br />
Mercury: 5 ppm<br />
Lead: 335 ppm<br />
Nickel: 165 ppm<br />
Chromium: 190 ppm<br />
Antimony: 5 ppm<br />
Cadmium: 10 ppm