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GENERAL ACCEPTANCE CRITERIA FOR CERN RADIOACTIVE WASTE RSOC 6 March 2015 EDMS 1492897 L. Ulrici - for DGS-RP group.

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Presentation on theme: "GENERAL ACCEPTANCE CRITERIA FOR CERN RADIOACTIVE WASTE RSOC 6 March 2015 EDMS 1492897 L. Ulrici - for DGS-RP group."— Presentation transcript:

1 GENERAL ACCEPTANCE CRITERIA FOR CERN RADIOACTIVE WASTE RSOC 6 March 2015 EDMS 1492897 L. Ulrici - for DGS-RP group

2 MOTIVATION Internal acceptance criteria are fundamental for the correct management of radioactive waste in order to:  Minimize hazards contamination, toxicity, avoid dissemination of waste  Optimize resources Temporary storage space, manpower  Facilitate disposal Minimize the non conformities Ensure compliancy with the acceptance criteria for waste to be disposed of towards Switzerland and France 2 EDMS 1492897

3 APPROACH The acceptance criteria are:  General They refer to the majority of radioactive waste Reflect good practices and common sense They are compatible with the transport requirements, that are not subject of this presentation  Admit exceptions Exceptions shall be announced (rp-rw-operational@cern.ch)rp-rw-operational@cern.ch  Applicable Simple to apply: the current practices are not changed Simple to understand in their formulation Simple in the registration of non-conformities 3 EDMS 1492897

4 ACCEPTANCE CRITERIA (I) 4 1) Preliminary announcement if:  Weight >24 T  Length >6m  Volume of batch >10 m 3  Dose rate at 10 cm >200 microSv/h (beta, gamma)  Presence of alpha contamination  Solids waste containing liquids  Putrescible  Presence of asbestos  Presence of chelating agents (GIGAPUR®, chlorides, fluorides, nitrates, sulfates, carbonates, EDTA, NTA, etc.)  Presence of Rn-220, Rn-222 (generated by Th-232, Ra-228, Th-228, Ra-226)  Presence of nuclear materials (Li-6, U and Th- depleted or natural or enriched, U-233, plutonium, deuterium, tritium in concentrated form, ) EDMS 1492897

5 ACCEPTANCE CRITERIA (II) 5 2) Declaration Declaration in TREC is compulsory before acceptance by DGS-RP-RW 3) Contaminated waste The contaminated waste shall be prepared according to the following criteria:  Waste shall be in DOUBLE plastic bags: SCEM 50.46.02 or (if too big) wrapped in DOUBLE layer vinyl: SCEM 50.46.03.100.5  If contaminated pipes, the extremities can be closed with plugs  Cutting edges should be protected such that the plastic or vinyl is not damaged  The air volume in the bags should be minimized EDMS 1492897

6 ACCEPTANCE CRITERIA (III) 6 4) Containers Only the following containers are accepted Requirements on the containers:  Good status: no deformations, holes, corrosion, cracks  Protection against bad weather (if needed)  No presence of liquids (cooling circuits must be emptied before), unless in appropriate containers  No overfilled containers  Plugs and lids shall be correctly closed  Chemical compatibility between the container material and the waste (integrity of the container)  Presence of a traceability label Each container not certified ADR shall be transported in a container certified according to the radiological characteristics and the transport regulation. EDMS 1492897

7 ACCEPTANCE CRITERIA (IV) 7 5) Sorting The following materials shall be identified, sorted and delivered in separate containers (traced accordingly):  Combustible material  Material with risks other than radioactivity and combustible  Electronic devices and electronic cards  Cables 6) Traceability Each piece of waste delivered separately shall be identified by a label and be registered in the TREC system. In case of a container filled with different pieces of waste (not included in a “big-bag”), at least one label shall be positioned on a visible part of the waste and another label shall identify the container. In case of a container filled with several waste bags, both the external container and each of the bags shall be labelled and associated in TREC EDMS 1492897

8 ACCEPTANCE CRITERIA (V) 8 7) Risk identification  Labels “contamination” and “radiation” will be stuck by DGS-RP  Hot-spots will be identified by  The owner shall identify additional risks and use the corresponding label (SCEM 50.55.20.019.0) In case of a voluminous waste item, the labels shall be doubled and positioned on two different sides of the item. EDMS 1492897

9 ACCEPTANCE CRITERIA (VI) 9  In case of non-conformity, the owner will be informed and she/he shall take action to correct the non-conformity  A check-list is included to help the owners in respecting the criteria:  Status and type of container List of containers  Respect of the size of the container  Integrity of the container (contaminated objects) Transparent bag/vinyl  Sorting of the waste (toxic/electronics/cables)  Absence of liquids, if applicable  Good coverage (lid, sealing), if applicable  Presence of labels (radiological and other hazards)  Presence of traceability label  In case of doubt, contact: rp-rw-operational@cern.chrp-rw-operational@cern.ch EDMS 1492897

10 EXAMPLES OF NON-CONFORMITES 10 EDMS 1492897

11 EXAMPLES OF NON-CONFORMITES 11 EDMS 1492897

12 Containers (I) 12 EDMS 1492897

13 Containers (2) 13 EDMS 1492897

14 Containers (3) 14 EDMS 1492897


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