Activated Carbon Method Developed for Trace Substance Removal from Wastewater
Researchers are developing a new activated carbon-based process to efficiently remove trace substances, such as pharmaceutical residues, from wastewater. The novel approach combines advanced activated carbon with electrical regeneration.
Researchers at the Fraunhofer Institute are developing a new method to remove trace substances like pharmaceutical residues and household chemicals from wastewater. Current wastewater treatment processes often fail to eliminate these substances effectively, despite their potential harm to the environment and human health even at low concentrations.
The ZeroTrace project integrates a proprietary activated carbon composite with a newly developed electrical regeneration process. Activated carbon is typically used for its large surface area that adsorbs impurities. The new composite exhibits significantly higher electrical conductivity than conventional granular activated carbon, enabling a more efficient regeneration cycle.
This approach aims to improve sustainability. Traditionally, powdered activated carbon is often disposed of by incineration after use, posing environmental challenges. Fraunhofer's researchers are utilizing granular activated carbon made from renewable materials, which can be reactivated at high temperatures. The electrical regeneration method reduces the need for transporting spent carbon to external reactivation facilities.
The project also examines innovation management and resource conservation, with the goal of creating a scalable and more sustainable solution for trace substance removal in wastewater treatment. If successful, the technology could significantly reduce the discharge of harmful residues into waterways.