
Manufacturer of gas scrubbers and exhaust gas purification systems for the chemical and process engineering industries

VSS-Umwelttechnik GmbH
Troisdorf · Representatives: Brazil, Croatia, Slovenia, Bosnia, SerbiaNew on Amplifa
About VSS-Umwelttechnik
VSS-Umwelttechnik GmbH, based in Troisdorf (NRW), was founded in 1997 and is a manufacturer of exhaust gas purification systems; as an internationally active engineering firm it specializes in the purification of exhaust air and process gases. The product portfolio includes gas scrubbers (nozzle, packed-column and Venturi scrubbers) for exhaust air flows from 1 liter/min to over 200,000 m³/h, compact scrubbers for Ex areas according to ATEX, point-of-use process gas scrubbers for semiconductor manufacturing, activated carbon filter systems, biofilters and biological scrubbers for odor removal, as well as thermal and catalytic post-combustion systems. The services range from problem analysis and on-site consulting, dimensioning and design to manufacturing coordination, quality control and acceptance testing (FAT) through to assembly, commissioning, maintenance and spare parts procurement. Customers come from the chemical, foundry, pharmaceutical, food, semiconductor, solar, glass and electroplating industries; references include BASF, Daimler, Merck and VW. Since July 2025 the company has been part of Hürner Luft- und Umwelttechnik GmbH (HLU).
- Site
- Troisdorf
- Processes
- Gas scrubbers / exhaust air scrubbers (absorption principle), Compact scrubbers for Ex areas (ATEX), Venturi scrubbers (fine dust and aerosol separation down to the nanometer range), Nozzle scrubbers, Packed-column scrubbers, Pipe-slot Venturi scrubber, Activated carbon filter systems, Biofilter / biological scrubber (odor removal)
- Materials
- Plastics (silencers, plant engineering), Water (scrubbing liquid), Plastic plant engineering, Water as scrubbing liquid
- Certificates
- Specialist operation pursuant to §19 I WHG, Specialist operation pursuant to §19 I WHG (TÜV Rheinland, monitored), ISO 9001
- Founded
- 1997
- Industries
- Chemical industry, Foundry industry, Pharmaceutical industry, Food industry, Semiconductor manufacturing, Solar industry
- 01
Problem analysis and on-site consulting
- 02
Technical dimensioning, process calculation and design
- 03
Manufacturing coordination and supervision
- 04
Quality control and acceptance testing (FAT)
- 05
On-site assembly and commissioning
- 06
Maintenance, repair and spare parts procurement
Processes and Materials
Plastic plant engineering
Systems and components such as silencers are made of plastic, among other reasons because of its resistance to aggressive gases.
Water as scrubbing liquid
In the gas scrubbers, e.g. for semiconductor manufacturing, water is used as the scrubbing liquid to absorb pollutant gases.
Locations

Troisdorf
DEHead office, engineering and project execution
- Lot size
- Single systems according to customer requirements
- Materials
- Plastics
- Compact scrubbers (ATEX)
- Venturi scrubbers
- Process gas scrubbers (Point of Use)
- Catalytic post-combustion systems
- Laboratory neutralization systems (Type LN 115)
Systems and Components


Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Gas scrubbers / exhaust air scrubbers (absorption principle)Engineering | – | – | – | – | Plastics |
| Compact scrubbers for Ex areas (ATEX)Engineering | – | – | – | – | – |
| Venturi scrubbers (fine dust and aerosol separation down to the nanometer range)Engineering | – | – | – | – | – |
| Nozzle scrubbersEngineering | – | – | – | – | – |
| Packed-column scrubbersEngineering | – | – | – | – | – |
| Pipe-slot Venturi scrubberEngineering | – | – | – | – | – |
| Activated carbon filter systemsEngineering | – | – | – | – | – |
| Biofilter / biological scrubber (odor removal)Engineering | – | – | – | – | – |
| Thermal post-combustionEngineering | – | – | – | – | – |
| Catalytic post-combustionEngineering | – | – | – | – | – |
| Regenerative oxidationEngineering | – | – | – | – | – |
| Point-of-use process gas scrubbers for semiconductor manufacturing (epitaxy AP/AP-RP, APCVD, RPCVD,Engineering | – | – | – | – | – |
| Chlorine emergency gas scrubbersEngineering | – | – | – | – | – |
| Mobile gas scrubberEngineering | – | – | – | – | – |
| Venturi quenchEngineering | – | – | – | – | – |
| Laboratory gas scrubbersEngineering | – | – | – | – | – |
| Laboratory neutralization systems (Type LN 115, two-sided neutralization)Engineering | – | – | – | – | – |
| Engineering services (problem analysis, consulting, dimensioning, process calculation)Engineering | – | – | – | – | – |
| Assembly, commissioning, maintenance, repair, spare parts procurement, FATAssembly | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Gas scrubber product portfolio (compact scrubbers, Venturi scrubbers, process gas scrubbers) | VSS-Umwelttechnik GmbH | – | Exhaust air flows from 1 liter/min to over 200,000 m³/h | – | Troisdorf |
| Catalytic post-combustion system | VSS-Umwelttechnik GmbH | – | Flow rate 5000 m³/h, clean gas concentration 5 mg/m³ | – | Troisdorf |
| EPI gas scrubber (semiconductor) | VSS-Umwelttechnik GmbH | – | Flow rate 50 m³/h, temperature 20–30 °C, DCS 45 slm | – | Troisdorf |
Additional services
Quality and Certification
As a certified specialist operation pursuant to §19 I WHG (German Water Resources Act), VSS-Umwelttechnik is monitored by TÜV Rheinland; quality assurance includes manufacturing supervision, quality control and product acceptance testing (FAT).
| Evidence | Troisdorf |
|---|---|
| Specialist operation pursuant to §19 I WHG (TÜV Rheinland, monitored) | |
| ISO 9001 |
History
- 1997
Foundation of VSS-Umwelttechnik GmbH in Troisdorf/NRW by a founder with many years of experience in plastic plant engineering
- 2025
Acquisition by Hürner Luft- und Umwelttechnik GmbH (HLU); Member of HLU since 2025