Logo Made in Germany WATEX 2017

Tholander Ablufttechnik GmbH

Booth number: Hall 38 - 532

About us

Tholander Environmental Engineering was founded in 1986 and has developed air pollution control equipment which today represents the state of the art for odour removal.

Tholander Environmental Engineering designs and delivers chemical and biological gas scrubbers, biofilters, activated carbon filter units as well as complete plants for the treatment of waste gases. The company is specialized in the removal of organic contaminants and odour removal in application areas such as waste water treatment, sewage sludge drying, composting facilities and different industries. Our equipment is working successfully in many countries all other the world. Having a worldwide network of cooperation with local agents, we are able to offer the best service to our customers by developing solutions adapted to local site conditions. The services of Tholander Environmental Engineering range from consulting over project engineering to installation, commissioning and after-sales-services.

Products and services

We design and deliver chemical and biological gas scrubbers, biofilters, activated carbon filter units and complete plants for the treatment of waste gases.

Our services range from consulting to project engineering, installation, commissioning and after-sales-services.

Concrete Biofilter

Concrete Biofilter

Tehran south WWTP is the biggest WWTP in Iran.In the course of extensive enhancement of module 5 & 6, two biofilter systems from Tholander each with a capacity of 30.000 m3/h to eliminate practically the entire odour emissions, was installed and are in operation. The enhancement of the plant includes cleaning of the waste air from the new sludge drying facility and the liquid way.

News & Innovations

Biotrickling filter 

Biotrickling filter
Benefit from the advantages of the biofilter and of the counter current scrubber in one single system. Thanks to the high specific surface of the packing material and the controllable irrigation a demanding concentration of contaminants like H2S can be treated in a compact system.

Similar to the biofilter, the biotrickling filter is a biological odour control with the difference that the sorption of contaminants takes place in a trickling bed instead of a filter bed. This packing is in its construction similar to the one in a packing scrubber. The difference is that it is loaded with a much lower irrigation density.

Your benefits:

  • Space-saving plant due to construction in height
  • Higher life time of the carrier media than biomedia in biofilters
  • Controllable Milieu conditions through regulation of water supply, automation of pH and drainage as well as dosation of required nutrients by bacteria
  • Durable construction


Tholander Ablufttechnik GmbH
Werkstr. 31
68519 Viernheim

Phone: +49 6204 92923-0
Fax: +49 6204 92923-30

Thomas Pfliegensdörfer
Managing Director
Phone: +49 6204 92923-0

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