Company overview

  • Offices in:
    Wiesbaden (Germany), Xiamen (China), Singapore, Raleigh (USA) and Jundiai (Brazil).
  • Company size:
    11-500 employees
About the company:

MICRODYN-NADIR GmbH is a leading independent manufacturer of micro, ultra and nanofiltration membranes and modules. One of our most innovative products is the immersed BIO-CEL® module for membrane bioreactors.

Areas of expertise:
  • Microfiltration / ultrafiltration / nanofiltration
  • Membrane bioreactors
  • Membrane and module manufacturer
Proprietary membrane products and systems:
  • BIO-CEL®


With production locations in Germany, China and Singapore as well as offices in the USA and South America, MICRODYN-NADIR is a leading, independent producer of micro-, ultra- and nanofiltration membranes and modules. Besides membrane and module production, MICRODYN-NADIR pursues intensive research and development activities at its headquarters in Wiesbaden.

For more than 45 years, MICRODYN-NADIR has been applying its products in various industrial and municipal applications, e.g. in the field of water and wastewater treatment as well as in many process-integrated applications. The product’s outstandingly sharp cut-offs and reproducibility allow for a high application variety, among others in the chemical and food industry.

One of MICRODYN-NADIR’s most innovative products is the submerged BIO-CEL® module for membrane bioreactors. This backwashable module comprises the advantages of flat membranes as well as it is featured with the packing density of hollow-fibre modules, which allows for fantastic application possibilities in the field of municipal and industrial wastewater treatment. The BIO-CEL® is available with 10, 50, 100, 416 and 1900 m2 of membrane area, has self-healing membrane sheets and is mechanically cleanable.

Since February 2015 MICRODYN-NADIR has become a 100 per cent subsidiary of MANN+HUMMEL. Since August 2014 MICRODYN-NADIR has been responsible for MANN+HUMMEL’s water business. MANN+HUMMEL’s membrane activities have been marketed under MICRODYN-NADIR’s company brand ever since. The ultrafiltration membranes and modules of MANN+HUMMEL are marketed and distributed under the product brand AQUADYN®, which is a registered trademark of MICRODYN-NADIR in Europe.

This is how BIO-CEL® MBR Modules work:


Membrane Production in Wiesbaden, Germany


This is how BIO-CEL® MBR Modules are working in a plant


MBR markets and services

Supplier active in:

MICRODYN-NADIR has sales and production facilities and cooperation partners across major markets in Europe, Asia, the Middle East, Africa, and the United States of America.

MBR technology supplied

Proprietary membrane products and systems:
  • BIO-CEL®
Technology configuration:


Image gallery

Reference installations

Marienhospital, Gelsenkirchen, Germany
Read more
Extension to Huenxe WWTP, Germany
Read more
Chicken slaughterhouse, Romania
Read more

Information on this page has been supplied by third parties and is not necessarily endorsed by The MBR Site. You must contact the third parties to confirm information is accurate and complete before acting upon it. The MBR Site accepts no responsibility for any action taken or costs incurred as a result of information on The MBR Site. The MBR Site accepts no responsibility for the content of third party websites. Any views expressed are those of the third parties and do not necessarily reflect the views of The MBR Site.

‘The MBR Site’ is a trading division of Judd and Judd Ltd, a company registered in England and Wales, registered number 8082403.

Registered office: Suite 2, Douglas House, 32-34 Simpson Road, Fenny Stratford, Buckinghamshire, MK1 1BA, United Kingdom. Email: info@thembrsite.com

Banner image: full treatment plant for pharmaceutical wastewater in Taizhou, Linhai Park, Zhejiang Province, China, including Shanghai MEGAVISION  flat sheet UF membrane modules in two MBR units. Image courtesy of VALORSABIO, Lda.

Image credits:

– Image for our Chinese largest plants 全球最大的MBR项目 homepage link: Image supplied by Apex Environmental
– Image for our Consultants and Contractors homepage link: Image supplied by Ovivo USA, LLC.

Disclaimer: The information given on this website is reproduced in good faith. No liability is accepted for errors or omissions. The MBR Site does not endorse any products, services, organisations, events or any other listing included in this site. You are strongly advised to check all information, including specifications and installation details, before acting on any information given in this website. The MBR Site links to third-party websites – note that we are not responsible for the content of third-party websites and third-party websites are visited at your own risk. Please read our terms and conditions and privacy policy. Use of this website indicates acceptance of these conditions.

This website is designed for modern browsers – if you have problems viewing our website, you may wish to upgrade your browser.