StEB Cologne Tests Filtralite® in Micropollutants Pilot

Cologne’s municipal sewage company, Stadtentwässerungsbetriebe Köln (StEB), is running a pilot project to evaluate new approaches to trace substance removal at its Rodenkirchen wastewater treatment plant. The initiative, called AdOx Cologne, is supported by the Ministry of the Environment of North Rhine-Westphalia (MKULNV) and aims to adapt existing BIOFOR biofilter cells for micropollutant removal. In 2017, Filtralite® NC 1,5-2,5 was installed as filter media, chosen for its highly porous structure that increases water contact surface and enhances adsorption capacity.

The project brings together several partners from research and engineering. Scientific oversight is provided by RWTH Aachen University’s Institute for Urban Water Management (ISA), while Hydro-Ingenieure GmbH contributes its planning experience from similar projects. The goal is to identify a treatment method that is both technically effective and economically viable, while remaining relatively straightforward to integrate into existing plant operations.

“Our objective with the AdOx Cologne project is to determine the most effective and economical variant for trace substance removal using the existing biofiltering cells,” explained Dipl.-Ing. Manuel Hartenberger, Project Manager at StEB.

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