Areas of application for precipitants

Precipitants are used in the most varied applications in communal, industrial and biological wastewater treatment, for example in:

  • Phosphate precipitation
  • Bonding of hydrogen sulphide
  • COD-reduction

In addition there are numerous applications in

  • Dairies
  • Slaughterhouses
  • The delicatessen industry
  • The paper and cardboard industry

Precipitants as a solution

SEPAR CHEMIE has a large selection of precipitants. The POLY SEPAR® CFX-range  is based on fully polymerised aluminium chlorides or on highly concentrated, modified poly-aluminium chlorides as well as iron salts.

  • Aluminium  sulphate
  • Poly-aluminium chloride
  • Aluminium(III)-chloride
  • Sodium aluminates
  • Iron(II)-chloride
  • Iron(III)-chloride
  • Iron(III)-chloride sulphate

Dosing systems for precipitants

We can provide various types of dosing systems.

Application fields of precipitants

Precipitants are usually dosed undiluted. They should be added at a point with high turbidity. The necessary dosage depends on the medium to be treated. It can lie in the low ppm range and would have to be determined through a laboratory test.

In selected areas of application with a high sheer load of flocks, consecutive dosage of a further high-molecular polymer has been proven useful.

In on site laboratory-tests our staff members recommend the optimal solution for our customers, non-binding and free of charge.


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