Self-healing BIO-CEL Membrane Bioreactor

Membrane Bioreactors (MBR) have become the leading innovation in wastewater treatment through conventional activated sludge.

Microdyn Nadir I
Microdyn Nadir I

Membrane Bioreactors (MBR) have become the leading innovation in wastewater treatment through conventional activated sludge. BIO-CEL® combines the benefits of traditional hollow fiber and plate and frame configurations without any of their inherent disadvantages. The self- supporting membrane sheet is just 2 mm thick, resulting in an extremely high packing density and very low specific energy consumption.

The BIO-CEL membrane separates within the ultrafiltration spectrum, producing high capacities of quality effluent at consistent flows. The BIO-CEL configuration centers on flat sheet technology, with directional flow eliminating clogging and reducing downtime. The modules' open top and bottom channels reliably prevent the deposition of sludge and fibre accumulation during the continuous cross-flow operating process. The self-supporting structure of the membrane module enables frame-free installation, thus eliminating blockages around the external boundaries of each component.

The membrane module is configured to allow for consistent permeate flow and a highly effective back flush over the entire membrane surface. Membranes built into submerged modules and installed in a WWTP have to be of the highest quality in order to ensure, among other things, the compliance with international water standards when looking at effluent quality and turbidity.

The unique BIO-CEL sheet, which represents the core part of the BIO-CEL MBR module, has a self-healing mechanism. Due to its sandwich-like and self-supporting structure the membrane "heals" itself even though it might be damaged considerably (deep scratches, cut edge etc.) and closes any scratch or cut immediately.

Several tests have proven that, even under worst case conditions, such as very low MLSS (Mixed Liquor Suspended Solids) concentrations and immense damages of the sheet, the BIO-CEL module offers turbidity values which are compliant with existing international regulations for water reuse. www.microdyn-nadir.de

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