Colloide manufacture and install submerged membrane bioreactors. The MBRs are the most technically advanced products in their field, giving unparalleled performance in wastewater treatment.

Colloide's submerged membrane bioreactor can be installed as part of a new-build plant and integrated to upgrade existing plants, giving an excellent quality of effluent in a compact plant.

Features

  • Ultrafiltration membrane giving very high effluent quality.

  • Fine bubble aeration used for cleaning the membrane, resulting in much lower running costs.

  • Solids handling capacity of membrane modules are best available (8mm gap between sheets).

  • Flexible flat sheet membrane with large gap between sheets which means no blockages.

  • Membranes are backwashable and so remain cleaner for longer, reducing the need for chemical cleans.

  • Robust system design ensures plant performance and long life.

  • Range of membrane sizes which means the optimum size can be selected for a given plant.

  • High packing density and compact design. Membranes can be used to replace others to give more membrane area.

The membranes are installed within or immediately after the aeration zone. This replaces the clarifier and other downstream equipment, whilst achieving a much better standard of treatment.

At the heart of the system Colloide uses an ultrafiltration, back-washable, flat sheet membrane. This membrane combines the advantages of classic plate and frame and hollow fibre modules without the disadvantages.

Colloide’s MBR systems have been developed with plant performance, reliability and whole-life cost in mind. They combine activated sludge and filtration within one stage, allowing a high performance of treatment to be achieved in a small compact plant.

While the membranes have the packing density of a hollow fibre membrane and are backflushable like a hollow fibre module, they have the advantage of having the defined channels of a plate module.

Applications

Wastewater

The main role of MBR technology is in wastewater treatment where the MBR plant achieves a very high standard of treatment in a single stage.

Colloide's MBR plants can be used in various applications such as municipal wastewater treatment, industrial wastewater treatment, packaged treatment plants and leachate treatment. The company has a track record of MBRs achieving BODs less than 2mg/l, SS less than 2mg/l, and ammonia below 1mg/l. MBR plants have also been used to continually achieve P levels below 0.5mg/l.