French to English translations [PRO]
Tech/Engineering - Nuclear Eng/Sci / Waste cementation | | French term or phrase: "pale perdue" | This seems to be a technique used when cementing waste in drums. Does anyone have any idea of the English equivalent?
le traitement des effluents liquides primaires et des effluents secondaires (issus du traitement et des rinçages) et leur cimentation en fûts de 440L (par procédé pale perdue)
Il s’agit d’un fût de 440 L à double couvercle (1 couvercle perforé solidaire du fût et un couvercle à visser) avec pale perdue, virole en acier inoxydable d’épaisseur 3mm, avec un corps tronconique, une couronne massive en tête et devant vérifier les critères de transport IP2 (tenue du colis à la chute et au gerbage).
I can only imagine that it's some kind of disposable blade which is left in the drum after sealing...
Many thanks |
|   Claire CoxKudoZ activityQuestions: 635 (none open) ( 66 closed without grading) Answers: 972
| | Local time: 07:04
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| | lost paddle | Explanation:
This gets more hits on UK sites, including this Nirex report:
http://www.nda.gov.uk/documents/upload/Nirex-interactions-wi...
WPEP is a dedicated plant for the packaging of wastes associated with the effluent treatment systems installed at Sellafield in the late 1980s/early 1990s (i.e. Enhanced Actinide Removal Plant (EARP) and Site Effluent Treatment Plant (SETP)). The plant produces cement encapsulated waste products in 500 litre drums of the ‘lost-paddle’ design.
The Dounreay Cementation plant was designed to process acidic raffinates arising from the reprocessing of MTR and DFR fuel. The raffinates are neutralised and then immobilised in cement in a 500 litre ‘lost-paddle’ drum to produce a homogeneous monolithic waste form for long term storage and disposal.
Or http://www.magnoxsites.co.uk/UserFiles/File/publications/lif...
The dilute slurries required to convey the Wet ILW to Process Facility will be concentrated using the Transportable Radioactive Sludge Dewatering Unit (TRSDU) to achieve optimum waste package loading prior to loading into a 3m3 liner in the Transportable Intermediate Level Waste Solidification Plant (TILWSP) where the slurry will be mixed with preblended cement powders using a lost paddle technique.
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The current baseline strategy for the management of this waste is to immobilise in cement via an in-drum (lost paddle) mixing process for disposal as ILW to the deep geological repository.
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| Selected response from:
MoiraB
Local time: 08:04
| Grading comment Thanks Moira - and to Chris too. I had in the meantime checked back with the client and he'd suggested "lost paddle", so that's what I've gone with
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