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Technology

The external principle

We at Berghof Membranes believe in external side stream membrane filtration and it is the passion that drives us to “think outside the box” of membrane technology for wastewater treatment. In tubular membrane filtration systems are placed OUTSIDE the feed tank or bioreactor, thereby resolving the inherent problems with many applied technologies.

Inside-Out Crossflow Filtration

To drastically minimize membrane fouling and clogging, Berghof Membranes developed its line of robust external membrane systems based on INSIDE-OUT crossflow filtration. This means superb fouling resistance and control, ideal for the separation and filtration of challenging industrial effluent and wastewater. As result, our robust filtration systems enable operators to sustain higher flux rates with less frequent cleanings and reduced maintenance.

External tubular membrane filtration present significant advantages for industrial treatment plants which are subject to varying processes- and waste streams. The ability to control crossflow velocity, results in a significant reduction of energy consumption, fouling potential and operating costs.

The external configuration

To prevent fouling and clogging, Berghof Membranes developed its robust tubular UF membranes based on cross-flow filtration technology (inside-out filtration), resulting in more fouling-resistant membranes that are ideal for the separation and filtration of challenging industrial effluent and wastewater.

Unlike dead-end filtration (outside-in filtration), as seen with conventional submerged membrane technology, crossflow filtration allows operators to sustain higher flux rates with less frequent cleanings and reduced maintenance.

Tubular UF membranes are also available in back-washable configurations that require less chemical usage and system downtime, thus extending the life of the membrane.

Outside-In Filtration

outside-in filtration

Higher fouling
Lower flux
Harder to clean

Inside-Out Filtration

inside out filtration

Superior fouling resistance
Higher sustainable flux
Easier to clean

Why External Membrane Filtration in Wastewater Treatment:

Berghof Membranes developed the B-SMART® intelligent software platform to further assist our OEM partners in offering unique and advanced solutions to their customers.

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Operator Benefits with External Membrane Filtration​

Cost saving

In a tubular UF application, fluids flow through modules at a high velocity, sufficient to maintain a turbulent flow. At a typical TMP of 1 – 3 bar, the permeate stream is forced through the pores of the membrane while suspended particles remain in the retentate stream.High cross-flow on the membrane´s surface prevents the build-up of particles on the inner surface of the tube, ensuring high flux and prolonged membrane lifetime.

Contact us and learn more

Automated cleaning

Our intelligent technology enables several cleaning procedures to automatically remove membrane fouling. The combination of variable crossflow velocity, backwashing, chemical enhanced backwash and CIP makes our technology a revolutionary solution for the treatment of any effluent.

How it works

Control over fouling

Our well-established crossflow filtration technology keeps the membranes working at optimal conditions. The combination of intelligent soft- and hardware, continuously analyses the situation and responds automatically to varying conditions whenever this is required.

Learn more about our Smart UF Skids

Chemical resistant.

Cleaning of wastewater systems with chemicals that contain high pH values, produces the best results. A major disadvantage is that polymeric membranes are not resistant to highly concentrated alkaline detergents. With this in mind, we developed the Chemical Resistant (CR) membrane, which are resistance to a wide variety of chemicals and pH values (2-12).

Learn more about our CR Membranes

Project References​

Take a look at our case studies

Water softening | New Material Industry

Project Details

Application: Water softening
Capacity: 200 m3/d
Membrane: 8mm PVDF, CR
Location: Huguan County (China)
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AnMBR & MBR | Dairy Industry

Project Details

Product: AnMBR and MBR in parallel
Membrane: 8mm, PVDF, backwashable
Capacity: 1,900 m3/day
COD load: 9,000 to 18,000 kg/day
Location: Wisconsin
Read more

AnMBR | Creamery

Project Details

Product: AnMBR
Membrane: 8mm, PVDF, backwashable
Capacity: 155 m3/day
BOD load: 1,587 kg/day
Location: Menomonie, Wisconsin
Read more

Manufactured in Germany

Made in a state-of-the art LEAN-production facility, with highly-trained production personnel and materials of the highest quality.

With over 50 years of experience and more than 2,500 project references across the globe, Berghof Membranes is the leading manufacturer of high quality tubular membranes.  

Tubular UF Membrane Modules

To prevent fouling and clogging, Berghof Membranes developed its line of robust tubular UF (ultrafiltration) membrane modules based on inside-out crossflow filtration.

Membrane Skid systems

Berghof Membranes developed B-SMART®, a customizable external membrane filtration system that can be designed with various features and functionalities.

Pilot systems & Lab testing

Bridging the gap between lab-scale testing and manufacturing. Our team of experts gives you the confidence to apply the technology for your specific wastewater challenges.

B-CARE® Service and Support

The B-CARE® program is an end-to-end comprehensive program developed to support our OEM partners from the piloting/engineering phase to operational system monitoring.