26.08.2015   Modern Power Station Practice

Liquid wastes

Spent nuclear fuel from magnox reactors when re­moved is stored in cooling ponds for about 100 days, to allow for fission product heat decay and radio-

, 7г;е Company 5h*ii хеер the records гед.;геО to te nade ► n accord*.te іі’Г. trii* avl^ori Sat ЮП for luctl регіСГ

ill the Secretary of Scat* or i parson authorised by him: and

fti» the Minister or a person ju^onsed dy n:m *ay ipecify.

Ю, їла Company shall supply on demand a-"d without charge a copy or copies of all or part of the records Kept m accordance who this authorisation as the Secretary of State, tne Minister, or a person authorised су either of thee, eay require,

11. — ill In this Certificate —

exceot tor *the Minister*, all cne — ords and expression» defined in the Radioactive Substances Act iQ*: snail nave the мм

meanings when used m this Certificate as they nave m that let;

’activity*, expressed m teco-ereLs *%anj ;he dumber of spontaneous nuclear tr ans ( cr-ai. = r i-g. *. л period of ore

second:

‘Hinxiey Point a site чеап t-4t part її tne site occupied by the Company at Hinmey rCiht *n ;;’ЕГ$ег which comprises the Kinxley Point A nuclear power station

■ Cl anv Other rei-i — — t. iJC і — r, ti r, g Cr ^

Secretary cf State а.-.ї ". * e

Signed by the Authority InspectсчГ of follyUon

of the Secretary of St*te in the Oepartfeent of

the Envirofutnt

wastes is by filtration before discharge, as with liquid wastes from AGR and PWR reactors. Typical annual discharge of liquid effluent from a PWR power station is given by Passant [9j and is shown in Table 4.7.

Table 4.7

Typical annual discharges of liquid effluent from a Pli’R power station

Halogens (mainly I-

131)

0.8

TBq

Caesium, rubidium

(mainly

C s -134)

0.2

TBq

Corrosion producis

(mainly

Co-58)

0,4

TBq

Other radionuclides

0.2

TBq

Total

1.6

TBq

Tritium (as tritiated

water)

57

TBq