Solid Radioactive Waste Strategy Report.pdf - UK EPR

More documents

Recommendations

Info

EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 180 / 257 11.2.6.2 Liquid Effluent Treatment The following functions will be provided: · Selective front-end storage of potentially-contaminated liquid effluent (water) according to the chemical composition and radioactivity of the various waste streams. In particular the effluent from the equipment drains (higher activity) and from adjacent floor drains (high conductivity, organics, low activity) will be separately collected; · Analysis of the contents of each storage tank and confirmation that subsequent adequate treatment (adjustment, evaporation, separation, filtration, etc.) will be performed so that the treated liquid can be discharged to the environment in accordance with the requirements of the plant discharge authorisation; · Treatment of the liquid effluent to separate it into clean liquid for discharge and waste concentrate for conditioning; · Corresponding transfer of the clean liquid to the monitoring system to monitor the activity and check for non-radioactive impurities prior to discharge; · Receipt and back-end storage of the concentrated liquid waste product; · Transfer of concentrated waste produced (evaporator concentrates, sludge etc.) to the radioactive concentrates processing system for conditioning. – 11.2.6.3 Liquid Discharges The following functions will be provided: · Receipt and collection of treated liquids after appropriate treatment (adjustment, evaporation, separation, filtration, etc.) prior to discharge; · Measurement of the volume and activity level of liquid effluents prior to release; · Determination and recording of release rates; · Automatic isolation of the discharge line, if an authorised limit is exceeded. – Treated water discharged to the environment via the liquid waste processing/storage system will comply with the requirements of the discharge authorisation granted under the RSA 93. The monitoring and accounting of the effluent released to the environment will be in accordance with this and other applicable legislation. The Liquid Waste Storage and Treatment Systems are designed to store and process liquid effluent accumulated in the controlled area during power operation, maintenance, overhauls and refueling, to discharge cleaned liquids into the environment and to provide back-end storage for concentrated liquid waste prior to conditioning. The systems will be controlled from a local control station. The rate of processed liquid discharge may be set as a function of cooling water volume.
EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 181 / 257 11.2.7 Wet Solid Waste Conditioning The wet solid waste conditioning system serves to condition liquid radioactive waste generated and stored during operation of the nuclear power plant. Sludges and concentrates will be pumped from the concentrate tanks into the concentrate buffer tank for homogenisation, chemical pretreatment/pH-adjustment and mixing with other waste types. The function of the liquid waste conditioning is to receive, process and condition liquid and solid radioactive waste into a form that is suitabe for either long-term storage and/or disposal and is compliant with the relevant approvals. The types of waste that will be processed by this system include evaporator concentrates and sludge and other types of solid waste from the solid waste treatment system including spent resins and spent filter cartridges. The conditioning process (drying, cementation, etc.) for the treatment or solidification of the waste into the final form and the waste package itself will be compliant with the requirements of of the relevant disposal authorities for example the LLWR and RWMD. The evaporator concentrates and the sludge as well as the solid waste will be conditioned and converted into a solid and long-term stable product (e.g. salt block, encapsulated product, etc.). The spent resins will be treated by dewatering in drums, in a shielded cast iron cask or solidification. The resulting waste form will be a disposable product which meets the final disposal regulations. The spent filters from the water treatment system will be treated by drying or embedding in grout to form a compliant solidified waste package. The resulting waste form will meet the requirements for final disposal. The compliant product is packaged in accordance with the relevant transport and disposal regulations. The waste package is either directly transportable and disposable, or the filled waste drum will be inserted into an overpack or be embedded in a disposal container in concrete or bitumen depending on the transport, intermediate and final storage regulations, and the radiation dose levels of the product.
Page 1 and 2:
A 2008-11-26 Sarah Greenwood Gary C
Page 3 and 4:
EPR UK N° NESH-G/2008/en/0123 REV.
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
10 13 16 19 22 46 49 EPR UK N° NES
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130: EPR UK N° NESH-G/2008/en/0123 REV.
Page 179: EPR UK N° NESH-G/2008/en/0123 REV.
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Page 257:
show all

Solid Radioactive Waste Strategy Report.pdf - UK EPR

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?