This is us: Origin and development of SCHAUB Umwelttechnik GmbH

At SCHAUB, we are proud of the decades of practical experience we have gained in the realisation of hundreds of lime and powdered activated carbon plants. Over many years, we have become a recognised expert and market leader in this field - and have shaped international plant engineering with our high-quality solutions.

Our DNA: experience combined with innovation. We continue to develop consistently and combine this expertise with the valuable input of highly qualified lateral entrants and the fresh knowledge of young university graduates.

Together we find the best solutions. Also for your application. Our motto: Together for clean air and clear water.

We combine expertise with experience from hundreds of projects.

We are recognised experts in lime and activated carbon plants. This gives you, the customer, the certainty you need for your decision.
Procurement decisions in municipal and industrial plant construction are very complex. They involve high investment sums with very long-term consequences.

One of the main goals of decision-makers is therefore to minimise risk. The best way to achieve this is to work with proven experts. We have learnt a lot from working on a large number of lime and activated carbon plants. We know the critical points and know exactly what works. Details often determine profitability and effectiveness - we know and master them!

Thats what Schraub Umwelttechnik stands for:

  • Consequent customer origanisation
    We understand your requirements, develop the optimum solution and manage the project to your complete satisfaction.
  • The best technical solution
    We know what is important and strike the ideal balance between the tried-and-tested and the innovative.
  • Superior product quality
    We develop coherent, well thought-out plants with high-quality system components,
  • Reliability and system commitment
    We act competently, communicate clearly and honour agreements.
  • Excellent service
    We provide you with personal, prompt and solution-orientated support.


Our roots: Expertise from 50 years of experience



Karl Heinz Schaub founds GNA - Gesellschaft für Nassaufbereitungstechnik mbH with two partners


Development to independence

  • GNA develops into a leading supplier of lime and powdered activated carbon plants. Hundreds of plants are put into operation worldwide
  • The ownership structure changes several times. In 2005, a medium-sized group of companies acquires the majority of the company shares
  • Karl Heinz Schaub remains managing partner of GNA.



Decision to separate

The shareholders have different views on the strategic direction of the company and the decision is made to part company by mutual agreement.



Michael Schaub founds SCHAUB Umwelttechnik GmbH together with Karl Heinz Schaub and Josef Liedl. All of GNA's service and expertise providers are involved right from the start and consistently develop GNA's core business further.


Expansion of the group of companies

As part of the company's planned development, Rüdiger Meyer, an experienced sales engineer, joins the company as Head of Sales & Marketing and becomes a shareholder.



Expansion of the managment team

Rüdiger Meyer is appointed Managing Director alongside Michael Schaub.