Brandol® Material
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BRANDOL-diffusers are very proven duroplast
diffusers mainly used for the aeration of waste
water for more than 50 years. These are
composed of pure quartz sand bonded with a
resin binder to form a stable, mechanically
strong porous element. Due to the exactly
defined quartz grain size distribution and a well
controlled production method the BRANDOL
cylinders and discs have a remarkably
homogeneous porous structure. This results in a
very uniform air distribution and bubble release.
| Brandol (BR) | Examples | |||
|---|---|---|---|---|
| Fine bubble aeration | BR 60 cylinders and BR 50 discs: Fine bubble aeration for activated sludge processes for nitrification and C-decomposition
|
|||
| Coarse bubble aeration | BR 120 cylinders: Coarse bubble aeration of waste water in grit chambers and mixing:
|
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Further applications possible
| Brandol (BR) | Unit | BR 50 | BR 60 | BR 120 |
|---|---|---|---|---|
| Mean pore size | µm | 70 | 75 | 200 |
| Porosity | % | 35 | 32 | 30 |
| Head loss (air vs. water) at air load |
mbar m3/h * disc m3/h * m |
20 4 |
20 8 |
5.5 8 |
| Bending strength | MPa | >20 | >12 | >12 |
| Material density | g/cm3 | 1.55 | 1.6 | 1.6 |
| Max. temperature resistance | °C | 130 | 130 | 130 |
| Dimensions disc (Ø/h) | mm | 232/20 | - | - |
| Dimensions cylinder (Do/Di) | mm | - | 70/40 | 70/40 |
Chemical Resistance
BRANDOL diffusers are resistant up to pH 9.5 against municipal waste water as well as against waste
water from industrial sewage water plants. BRANDOL diffusers have a good chemical resistance against
most solvents, hydro carbons and acids. Chemicals that can attack the BRANDOL diffuser material are for
instance aniline, calcium chlorate, furfural, potassium chlorate, potassium hydroxide, aqua regia, cresol,
natrium chlorate, natrium hydroxide, sulfuric acid concentrate, perchloric acid, nitric acid (> 10%) und
trichloroacetic acid (> 50%).
| Type | Do / Di (mm) | Length (mm) | Diameter (mm) | Height (mm) | Area (m2) | Weight (kg) |
|
|---|---|---|---|---|---|---|---|
| Disc | 50 | - | - | 232 (9") | 20 | 0.03 | 1.3 |
| Cylinder | 60, 120 | 70/40 | 500 | - | - | 0.11 | 2.1 |
| Cylinder | 60, 120 | 70/40 | 500 | - | - | 0.16 | 3.1 |
| Cylinder | 60 | 70/40 | 1000 | - | - | 0.21 | 4.1 |
Special dimensions and special products on request.
General Information
- Brandol diffuser can be regenerated in-situ in by acid injection in order to remove calcium carbonate depositions.
- BRANDOL diffusers have a remarkable lifetime and a low pressure drop. The resin bonded material is
designed for decades of perfect operation.
For more information and to order this product, please contact the Pall Industrial Materials representative for your region, or email us at industrialmaterials@pall.com
Western Hemisphere
Pall Trincor
Pall Membrane Technology Center
770 Pennsylvania Drive, Suite 100
Exton, Pennsylvania 19341
+1.610.458.9500 phone
+1.610.458.9595 fax
Europe
Pall Filtersystems GmbH
Werk Schumacher Crailsheim
Zur Fluegelau 70
D 74564 Crailsheim
+49 7951 302 phone
+49 7951 26511 fax
Asia
Nihon Pall Ltd.
6-8-1, Nishishinjuku Shinjuku-Ku
Tokyo, Japan, 163-6017
+81 3 6901 5800 phone
+81 3 5322 2134 fax