A membrane bioreactor (MBR) WWTP combines conventional biological wastewater treatment with membrane technologies. Separation of activated sludge in conventional wastewater treatment plants takes place in settling tanks. This method of separation therefore has its limits in the quality of purified water and in a higher demand on the composition of activated sludge. Membrane separation consists of suppression or microfiltration, where the mixture of purified water and sludge is filtered through vacuum through membranes and the resulting effluent (permeate) is free of almost all undissolved substances and microbial contamination, so the permeate is hygienically secured.

• High quality purified water (permeate) suitable for recycling
• Thanks to the higher volume load of activation, the capacity of the existing treatment plant can be increased to 2-3 times the original capacity
• MBR can handle materially and hydraulically unstable inflow to the treatment plant

• Long durability - up to 12 years
• Possibility of backwashing (incl. Dosing of chemicals) »thorough cleaning of the membrane» delaying to complete elimination of the need for regeneration »prolonging the life of membranes
• Self-healing ability in case of mechanical damage
• Unique frameless construction, which prevents settling of the sludge at the corners of the module
• Low pressure losses and high areal density
• Easy operation

The customer's initial concerns about glazing and clogging of the membranes can be dispelled thanks to our numerous references, where one and the same membrane works without signs of significant wear, and tear, they filter for years. Depending on the size of the treatment plant, the membranes are cleaned using 4 steps:

1. Air cleaning 
2. Backwash
3. Backwash with chemicals
4. Chemical regeneration

We have used our many years of experience with membrane processes in optimizing the control system so that the lowest possible electricity consumption is achieved for all types and sizes of membrane treatment plants.

In general, compared to a conventional treatment plant, the operation of a membrane treatment plant is less demanding. The control system for all sizes of treatment plants is responsible for the full automation of the entire technology. In larger treatment plants, the operator does not have to worry about the cleanliness of the settling tank, which is closely related to the quality of the outflow. Concerningthe manual activities, the operator is mainly responsible for the removal of scrapers and the control of any notifications from the control system.

We are aware that each customer must be familiar with the membrane technology, therefore, it is for us a thorough operator training and subsequent technological support. We are able to provide service supervision of the treatment plant via remote access or on-site inspection.

We cooperate with the universities of the VŠCHT Prague, VUT Brno, TU Liberec and the TAČR agency. We apply the acquired knowledge and skills in practice. We present ourselves at trade fairs and conferences.

We regularly organize our own professional conference.

A membrane WWTP was installed in the village of Křišťanov. Thanks to well-purified water, it is possible to drain into a stream water with the occurrence of freshwater pearl mussels without endangering its life!