Membrane Filtration

Mikro-, Ultra- und Nanofiltration

WEIL Process - Membrane Filtration - Micro-, Ultra- and Nanofiltration

Membrane filtration is used to remove dissolved ions, molecules and particles from water. Depending on the pore size, a distinction is made between microfiltration (> 50 nm), ultrafiltration (10-50 nm), nanofiltration (1-10 nm) and reverse osmosis (0.5-1 nm).

Depending on the separation limit or pore size of the membrane, particulate water constituents can be removed from the water with a high degree of efficiency. Due to the sieving effect, the particles are retained by the membrane while the water passes through the membrane.

We advise you according to your specific requirements and work with you to develop customised solutions for cleaning your process water and drinking water with the help of our membrane filtration systems. Get in touch with us or fill out our questionnaire now. We look forward to receiving your enquiry!

You can find out more about reverse osmosis here.

Application and Industry Examples


Our team of engineers and technicians will accompany you from the very beginning


We come to you! For the inventory and an on-site inspection, we will come by your place.

Water analysis

Whether it is softening, reverse osmosis, or adsorption on activated carbon - whichever method it is, a detailed analysis of the raw or wastewater is the basis of the further planning.

Reverse Osmosis System

Pilot test

A pilot test serves as the basis for the selection of the method and the dimensioning of the cleaning system. Weil Wasserbehandlung GmbH offers pilot tests, including measurement campaigns, at your site.

Evaluation and reporting

The results of the preliminary tests provide an objective basis for the decision on the optimal design of the water treatment.

We manufacture softening systems with individual valve control on an individual basis and according to your specifications

Water treatment plant

After a successful consultation, you will receive a made-to-measure offer for a water treatment system suitable for your requirements.

Delivery, installation and commissioning

The prefabricated system parts are delivered, assembled on site and put into operation by our engineers and technicians - also internationally.

Maintenance and repair service

Regular service with maintenance and repair work by our service technicians make our offer complete for you.

We are happy to advise you

Seven Kalbertodt
Managing Director