Wastewater treatment plants


The idea from the simplicity of wastewater treatment…

18 years ago three members of the small firm »Abwassertechnik Baumann« (Baumann Wastewater Engineering), all of them members of the Baumann family, were deliberating how they could make the lives of installation partners and of the operators of small wastewater treatment plants easier – both economically and technically. Rapidly, the idea of developing a sewage treatment plant, which can be installed without great expenditure as retrofit unit both in old and also new multichamber pits, was born. And: the cost/performance ratio had to be more than fair.

With the help of familar specialists and engineers as well as with some borrowed money Markus Baumann and his father, Dipl.-Ing. Dagobert Baumann, developed the concept for a new generation of wastewater treatment plants. The basis for this was provided by a technology, which had already achieved outstanding results in large scale wastewater treatment operation and which was able to balance out heavy variations in loading: the SBR process. 

The first prototype was created in the cellar…
Based on this, the first prototype of the new sewage treatment plant was created in the cellar of the Baumann family house. The first units were assembled and tested in the garden pond, rebuilt and tested… and one day, after many long nights and weekends in the cellar, the AQUAmax® was finally finished. Now it was possible to retrofit antiquated wastewater treatment plants with a modern system without extensive excavation work and to install new wastewater treatment plants without great expenditure. 


Pioneer work…
As the SBR technology, which was used in the AQUAmax® plant, was not yet described in any valid DIN standard specification, the Baumann's in collaboration with the RWTH (Rhine-Westphalian Technical University) in Aachen, had to do pioneer work. The AQUAmax® has been tested thoroughly until it was finally granted: The German “National General Technical Approval” No. Z-55.3-53 in accordance with DIN 4261. The way towards one of the most fascinating success stories in the branch was thus free.

The  AQUAmax® SBR wastewater treatment plant system from ATB – today one of the most modern and innovative technologies of our time. Always one step ahead…  

What at that time caused incredible interest and great scepticism in the branch, is today across the whole of Europe an established product with over 85,000 units sold, unchallenged market leader in Germany. A wastewater treatment plant market without it can no longer be imagined. In the meantime, from a single product a complete system of small wastewater treatment plants, which covers a large bandwidth of demands, can be obtained, from 4 (for remote houses) up to 10.000 PT (for the
 catering trade, hotels and commercial objects as well as for housing estates and small villages). Having started as a revolutionary generation, in the meantime an also revolutionary AQUAmax® BASIC arised. This version works without a further pump with the same efficiency and is therefore able to dispense in too many vulnerable electrical components. And, through the exceptional  AQUAmax® system, all plants can even be
 retrofitted per update – for denitrification and for the disinfection of wastewater. And the development goes on: together with well-known institutes and universities we are working continuously on new ideas for wastewater treatment plants, solutions and technologies to optimise today’s treatment of wastewater, to make it even more efficient... and to continue to be one step ahead of the innumerable  AQUAmax® copies. 

AQUAmax® service means 100 % security for plant installers and operators!
 It goes without saying that the customer service plays a large role with such a range of products. Therefore a team of highly qualified and experienced staff ensure that - practically around the clock - the installation partners and the plant operators can sleep peacefully. The ATB emergency service, dispatch of spare parts within 24 hours, the free hotline service, monthly installation and maintenance seminars and a great deal more round off the AQUAmax® 
concept and complete the ATB philosophy, which is valid still today: to make the lives of installation partners and operators of small wastewater treatment plants as simple as possible, both economically as well as technically.   

Foundation stones of success: innovation and quality

Through this target, enormous courage, visionary thinking, a large amount of innovative strength and an always unwavering high quality, in the shortest time one of the most renowned companies in the branch with over 50 employees has resulted from a small family operation: ATB Umwelttechnologien GmbH.   

With this enormous engagement in the business of wastewater treatment technology it surprises hardly anyone that such an overwhelming success has met with a wide response from the public. Thus, over recent years, ATB has received the following awards and prizes: “Environment Prize of the German Federal State of Mecklenburg Vorpommern” (1999), “Austrian Environment Prize for Innovation” (2001); “Founder Champion of the German Federal State of Nordrhein Westfalen (NRW)” (2002), “Innovation Prize Market Vision OWL” (2003), “Potential Innovation 2004” of the Financial Times Germany, “Finalist Entrepreneur of the Year” (2004 + 2005), “Finalist Grand Prize of Small and Medium-sized Firms” 2005, Innovation Quality Mark "TOP 100" 2006...


Our latest development, PUROO, once again sets milestones in the world of the wastewater plant sector. With very low power consumption and totally without troublesome solenoid valves, PUROO is another big step in the improvement of small wastewater treatment plants. In May 2014 the PUROO was the winner of the GreenTec Awards category "Water & wastewater", Europe's biggest environmental and economic prize.

Environmental Prize 1999

In September 1999 ATB received the Environmental Prize of the German Federal State of Mecklenburg Vorpommern for the small wastewater treatment plant AQUAmax®.

Environmental Prize 2001 in Austria

The AQUAmax® won the Environmental Prize of the Austrian industry for the sector “Ecodesign and product innovation”.

In 2001 ATB was honoured as participant of the ÖKOPROFIT project

ÖKOPROFIT is an environmental management system, which is carried out in some regions in collaboration with regional authorities and external consultants. With ATB, for example, one noted resource-friendly handling of raw materials and energy.

ATB honoured as Founder Champion 2002 in the NRW

In May, Markus Baumann, managing partner and founder of the ATB, received the award as Founder Champion 2002 for the German Federal State of Nordrhein-Westfalen.  Read more...

ATB awarded the Innovation Prize

”Market Visions OWL” 2003 for the AQUAmax® unit assembly system. In November 2003 ATB receives innovation prize.

AQUAmax® as first small wastewater treatment plant in Germany with the Approval for Nitrification

The AQUAmax® has been certified as the small wastewater treatment plant in Germany for the category “Nitrification”. This means that the AQUAmax® also degrades ammonium very well. Thus ATB has demonstrated that small wastewater treatment plants can do much more than just “basic treatment". 

Award of “potential Innovation”

The Financial Times and IHK count ATB among the 10 most innovative companies in Germany and thus made the award in 2004.

Finalist Entrepreneur of the Year 2004

ATB designated as finalist in the company competition in 2004. With this Ernst & Young, the Accountant firm. honours the outstanding business performance of ATB. 

AQUAmax® inventor ATB Umwelttechnologien GmbH honoured by ex-Minister-President Lothar Späth for outstanding innovative performance

The ATB Umwelttechnologien GmbH from Porta Westfalica for its outstanding innovative performance received the Quality Seal Top 100 2006. The seal was awarded within the framework of a festive event on 23 June 2006 at the top of the highest mountain in Germany, the Zugspitz, by mentor and ex Minister-President of Baden-Württemberg, Lothar Späth. Öffnet externen Link in neuem Fenster. 

Entrepreneur of the Year 2005:

With this year’s nomination as finalist in the “Industry” category, the firm of Ernst & Young acknowledged the business performance of Markus Baumann for the German economics location already for the second time. The businessman’s prize will be awarded on 23 September 2005 in the Alten Oper (Old Opera) in Frankfurt..   Read more...

ATB Umwelttechnologien from Porta Westfalica with the award “Grand Prix of the small and medium-sized businesses”:

Over 2,500 companies from the whole of the Federal Republic of Germany were nominated, but only some 50 of these have made it: they are the finalists for the much sought after German Economics Prize “Grand Prix of small and medium-sized businesses”, the so- called “Blue Chips”, the top companies in the country. Amongst these: ATB Umwelttechnologien GmbH from Porta Westfalica. The main prize-giving took place on 10 September 2005 with celebrations at the Cologne Maritim Hotel.  Read more...

Domestic wastewater treatment PUROO® is the winner of the GreenTec Awards 2014

ATB's small wastewater treatment plant PUROO® is the winner of one of the GreenTec Awards, Europe's biggest environmental and economic prize! The GreenTec Awards are given in nine categories for innovative projects and products based on green technology. The ceremony took place on 4th May 2014 at the ICM in Munich with about 1,000 invited guests, including many well-known personalities of business, politics and entertainment.