Structure And Filtration; Design Of The Pipe Module; Filtration - Burkert T-CUT Manuel D'utilisation

6 STRUCTURE AND FILTRATION
The product is designed for the cross-flow mode.
6.1 Design of the Pipe Module
T-CUT tubular/pipe modules are modules with open flow channels. There are different flow channel widths which
usually have a diameter of 5 to 25 mm. Pipe modules are manufactured as a single pipe or in bundled configura-
tions and are installed in housings.
The membrane layer of the pipe module is applied on a reinforced carrier material. The product to be filtered flows
through the pipe module at a flow rate of approx. 3–4 m/s. The ultrafiltrate (permeate) flows radially through the
membrane and the support pipe and reaches a permeate collecting chamber from where it is discharged. The
specific cross-flow rate is elementary for operation of the module and must be taken from the specific data sheet.
The major advantage of the pipe modules is their ability to achieve a high concentration without blockages even
when media have a high solids content. Pipe module systems do not require any expensive prefiltration which is
essential with other systems which have a thinner channel cross-section. Another major advantage of the pipe
modules is that they can be cleaned thoroughly.
Figure 1: Pipe module
6.2

Filtration

T-CUT tubular/pipe modules are used exclusively for cross-flow filtration. Unlike so-called dead-end filtration,
which usually forms a performance-limiting filter cake, this effect is greatly reduced during cross-flow filtration by
the tangential flow control of the liquid to be filtered. Suspended particles or emulsified liquids can be effectively
separated by this method.
In the case of the membrane separation method, we recommend practical testing to support the theo-
retical viewpoints for successful substance separation. Preliminary laboratory and pilot reference trials will
provide information on the flow rates and purity of the permeate (filtrate) and therefore on the efficiency of
the separation process.
10
english
Type T-CUT
StructureandFiltration
Concentrate
(Retentate)
p
OUT
Permeate
Permeate
p
IN
Feed