TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

Use of immobilized enzymes in an expanded or fluidized bed has certain advantages over use of immobilized enzymes in a fixed bed. The most important advantages of such operations are that plugging is totally avoided and that it is possible to use substrates containing particulate materials. In spite of these advantages, almost all industrially enzyme-catalyzed continuous processes in which immobilized enzymes are used are performed in fixed bed, among other reasons because in an expanded or fluidized bed the particles having enzymatic activity are worn down during operation as a result of collisions between the individual particles.  1, fiche 1, Anglais, - fixed%20bed

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

Support particulaire sur lequel est fixé le catalyseur. Ce dernier se présente sous la forme d'un film visqueux qui adhère sur un lit solide. Ce catalyseur peut être constitué par une culture naturelle de micro-organismes ou par des molécules d'enzymes.  2, fiche 1, Français, - lit%20fixe

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

Fixed bed reactors. In fixed bed fermenters, the cells are immobilized by absorption on or entrapment in solid, non-moving solid surfaces. In one type of fixed bed fermenter, the cells are immobilized on the surfaces of immobile solid particles such as plastic blocks, concrete blocks, wood shavings or fibrous material such as plastic or glass wool. The liquid feed is either pumped through or allowed to trickle over the surface of the solids where the immobilized cells convert the substrates into products. Once steady state has been reached there will be a continuous cell loss from the solid surfaces. These types of fermenters are widely used in waste treatment and as biological filters in small aquarium water recycling systems.  1, fiche 2, Anglais, - fixed%20bed

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Système comportant un matériel fixe qui supporte les microorganismes assurant l'épuration des eaux usées qui traversent le réacteur.  1, fiche 2, Français, - lit%20fix%C3%A9

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 DEF

Solid particles in intimate contact with fluid passing through them too slowly to cause fluidization.  1, fiche 3, Anglais, - fixed%20bed

Record number: 3, Textual support number: 1 CONT

When using air or oxygen with steam, coal may be gasified ... in lump form in fixed beds (as in gas producers or in the Lurgi process); ...  2, fiche 3, Anglais, - fixed%20bed

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 CONT

Les gazogènes à lit fixe se divisent en deux classes: ceux du type à contre-courant, où les gaz formés sont évacués par le haut alors que les solides circulent de haut en bas, et ceux de la classe équicourant, où les gaz et les solides circulent dans le même sens, soit de haut en bas.  1, fiche 3, Français, - lit%20fixe

Fiche 3,  Justifications,  Espagnol