Remediation of groundwater and wastewater

with innovative ironoxide particles

Who are we

ColFerroX GmbH is a startup based in the Rhein-Ruhr area, Germany. We develop and offer innovative solutions for groundwater, soil, and wastewater clean up, based on our established colloidal iron oxide particles and other more recent developments.
The ColFerroX team has developed and verified the technology through various research projects carried out at the Helmholtz Zentrum München and the University of Duisburg-Essen. Together with University partners, ColFerroX GmbH develops innovative and field-approved solutions and offers them to the environmental remediation market. Our aim is to provide sustainable, environmental-friendly solutions for contaminated sites and industrial waste water.

The technology

Our innovation is based on the unique properties of the ColFerroX iron oxide nanoparticles. In aqueous suspension, they behave perfectly colloidal and can thus be injected into aquifers like a liquid over a radius of several meters.

Due to the subsequent contact with the groundwater and the sediment, the particles precipitate within a few days. The surface of the sediment is thus coated with iron oxides and the particles remain in the aquifer; they form a permeable barrier which adsorbs pollutant such as heavy metals (As, Zn, Ni, Pd, Cd, Cr, Cu, …) or cyanide.

Metal contaminated water
Injection of colloidal iron oxide particles
Permeable Barrier
Clean water

The Team

Beate Krok (CEO)

Dr. Beate Krok is the Chief Executive Officer. Prior to joining ColFerroX she worked as a PostDoc at the Universität of Duisburg-Essen on a variety of (bio)remediation projects. She holds a PhD in biomining from the Universität of Duisburg-Essen, where she also received her B.Sc. and M.Sc. in Water Science.

+49 (0)177 937 89 47

Sadjad Mohammadian (COO)

Dr. Ing. Sadjad Mohammadian holds a master degree in petroleum engineering and a PhD in hydrogeology. His specialty is flow and transport processes in subsurface, with a focus on environmental applications. In ColFerroX he leads field applications and international collaborations.

+49 (0)176 61 916 476

Rainer Meckenstock (R&D)

Prof. Dr. Rainer Meckenstock is Professor for microbiology and has long lasting experience in bioremediation and development of new environmental technologies. In ColFerroX he is responsible for developing innovative technology that offers environmental friendly solutions.

+49 (0)160 91 388 183