You have a question about FAST?
Don't hesitate to contact us.

Frequently Asked Questions

What is FAST?

FAST is a software tool to predict the breakthrough of fixed-bed adsorbers which are used in water treatment.

Can I use FAST free of charge?

Yes, if you are using it for private or academic purposes. FAST is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License, which means it is free for non-commercial use. If you want to use FAST in your engineering company, please contact us.

I don't understand the software. What should I enter in the field X?

Please use the help function in the software or read the online help section.

I've read the help and I still don't understand what FAST is doing. Where can I get background information?

The used models and the theoretical background are described in a number of textbooks and papers. Have a look at the referenced literature.

FAST does not work. Where can I get help?

Please send an email to We can't guarantee you an immediate answer that solves your problem, but we'll try our best to support you.

Who are you?

FAST was designed by Sebastian Schimmelpfennig and Alexander Sperlich. We are environmental engineers from Berlin, Germany.