High Performance
Bio Carriers
for biological waste water treatment
and gas treatment
Quality made in germany
DIN EN ISO 9001: 2015
Hel-X Bio Carriers in biofilm and mass transfer processes
Hel-X biocarrier are specially developed for use in biofilm processes. They are used successfully around the world in municipal and industrial wastewater treatment, aquaculture / aquaponics, and ornamental fish farming as growth bodies or fillers. You will also work in numerous other areas of process engineering as fillers in mass transfer processes.
The Hel-X Flake is a further development. The extremely large specific surface of this product results from the porosity of the material.
All Hel-X products are manufactured in Germany according to our quality and environmental standards.
The name Hel-X characterizes the circumferential spiral or helix, a product property that ensures high mechanical stability with at the same time very good flow and a high specific growth area. The biofilm is optimally supplied with oxygen and nutrients.
News
100th company anniversary
Press Release
Christian Stöhr GmbH & Co. KG to Showcase HEL-X Bio Carriers at WEFTEC 2025 in Chicago
Christian Stöhr GmbH & Co. KG is pleased to announce its participation in the WEFTEC 2025 – Water Environment Federation Technical Exhibition & Conference, taking place from September 29 to October 1, 2025, at McCormick Place in Chicago, Illinois, USA.
For more information about the exhibition, visit: www.weftec.org
At Booth 6046 in the Bavarian Pavilion, the company will present its innovative HEL-X bio carrier solutions for biological wastewater treatment. HEL-X bio carriers are known for their high efficiency, sustainability, and adaptability, and are used in municipal and industrial wastewater treatment plants worldwide.
Visitors are warmly invited to learn more about the latest developments and applications of HEL-X technology and to engage with the expert team from Christian Stöhr GmbH & Co. KG.
About Christian Stöhr GmbH & Co. KG:
Based in Germany, the company is a leading provider of bio carrier technology. With many years of experience and a strong focus on innovation, Christian Stöhr GmbH & Co. KG offers customized solutions for biological wastewater treatment.
HEL-X Showcases Innovative Environmental Solutions at ENVEX 2025 in Seoul
Seoul, South Korea – HEL-X is proud to announce its participation in the prestigious environmental trade fair ENVEX 2025, held in Seoul, South Korea. The company will be exhibiting at a joint booth with WATROPUR Ltd., highlighting their latest advancements in sustainable water and wastewater treatment technologies.
ENVEX (International Exhibition on Environmental Technology & Green Energy) is one of Asia’s leading platforms for environmental innovation, bringing together industry leaders, policymakers, and technology providers from around the globe. HEL-X’s presence at the event underscores its commitment to driving forward-thinking solutions for a cleaner, more sustainable future.
Visitors to the HEL-X and WATROPUR booth will have the opportunity to explore cutting-edge products and engage with experts on the latest trends in environmental engineering.
For more information about the event, please visit the official ENVEX website: https://envex.or.kr/kor/main/index.asp
Alexander Hempfling Celebrates Ten-Year Work Anniversary
Over the past ten years, he has been actively involved in sales, export and customs processing, as a trainer, and at trade fairs—achieving remarkable success along the way.
Mr. Hempfling has played a key role in optimizing our export processes and making customs procedures more efficient. In sales, his expertise and dedication have helped win numerous new customers and strengthen existing relationships.
His straightforward manner and tireless commitment are of great value to us.
Congratulations, Alexander, and thank you for your outstanding work!
Bavaria's strongest medium-sized companies
Christian Stöhr GmbH & Co. KG will be in the top 10 again in 2024
applications
HEL-X Bio Carriers
Wastewater treatment
- industrial and municipal wastewater
- MBBR – moving bed biofilm reactor
- fluidized bed biology
Aquaculture
- Fish farming
- Circulation systems
- Koi breeding
Ornamental fish farming
- Floating bed method
- Fixed bed process
other areas of application
- Biogas plants
- Gas washing and cooling
- Exhaust air and exhaust gas cleaning
Hel-X Flake 30
Ideal for heavily loaded Sewage and compact systems
Due to its high porosity, the HEL-X Flake 30 made an extremely large area available for biomass growth. This allows very high degradation rates in the smallest of areas.
In the pores of the HEL-X Flake 30, the biomass is protected from abrasion. At the same time, the flat geometry allows an optimal supply of oxygen and nutrients.
The HEL-X Flake 30 is the optimal solution for heavily polluted wastewater. The highly porous, compact structure enables high space reduction rates for high cleaning performance on a small area. In the pores, the biomass is protected from the shear forces, at the same time the surface of the chip is cleaned by the shear forces, so that the supply of the immobilized biomass with nutrients and oxygen is ensured.