Badly thickened excess sludge and an unbalanced nutrient ratio often lead to a foaming of the digestion towers. Our partly bio-degradable defoamers / foam separators from the POLY SEPAR® DEFO range provide an initial remedy.

Application areas of defoamers

Our defoamer concentrates POLY SEPAR® DEFO 24, 32, 80, 95 are used:

  • by municipal communities, e.g. for foaming digestion tanks
  • in industrial applications for wastewater with high surfactant content levels or
  • with other foaming substances such as proteins
  • in the case of heavy foam formation during sludge dewatering with centrifuges and filter presses

Principals of defoamers / foam separators

POLY SEPAR® DEFO are characterized by a very low level of influence on oxygen transfer. They destroy foam and reduce foam volume.


We would be pleased to offer you individual product advice to suit your specific requirements. Please use our contact form or call us at: +49 (0)4102-666-30.
We will be glad to provide consulting services on the required systems technology. Here, you can access our field service.



Please contact us should you have any questions.
Contact form

You could reach us also by telephone or by mail.
+49 (0)4102-666-30

This year we have again supported „Doctors without Borders“ and UNICEF with a donation.

Opening Hours

Monday – Thursday: 8 a.m. – 5 p.m.
Friday: 8 a.m. – 3 p.m

Monday – Thursday: 8:30 a.m. – 4 p.m.
Friday: 8:30 a.m. – 2 p.m.

Our Partner Company in Sweden and Scandinavia:

Separ Chemie GmbH | Erika-Keck-Strasse 4 | DE – 22926 Ahrensburg | Phone:+49 (0)4102-666-30 | Email: info[at]­separ-chemie.­de