Our mission
We close the loop on plastic by deploying industrial-scale cleaning and recycling technology that makes high-quality recyclate economically viable.
About us
About Circular Projects
Circular Projects GmbH is on a mission to lead the polymer resource revolution — turning post-consumer and post-industrial plastic waste into valuable, reusable raw material.
What we do
Circular Projects operates HydroDyn Systems with its unique HydroCleaner washing technology, removing contaminants from plastic flakes at a scale and purity that conventional processes cannot match.
Where we are
Headquartered in Hamburg, Germany, we partner with recyclers, converters, and brand owners across Europe to bring circular polymer solutions to market.
Process flow
Our processing lines
The HydroClean ColdWash technology is configured into two complementary lines, each tuned to a different feedstock geometry and tailored to deliver clean polymer output ready for mechanical recycling or pyrolysis.
Cleaning Waste from Rigids to cFlakes with HydroClean ColdWash
Input from Waste
Rigid Flakes at a Size Distribution from 5 to 15 mm
HydroClean/CS Systempurifies Rigids to < 1,000 ppm residual Contamination
SpinDryerdewaters Rigids and performs Booster Drying to < 2%
AeroSeparatorpurifies Rigid from Dust and Film
Polymer Output
Cleaned Rigid cFlakes for mechanical Recycling or Pyrolysis
Cleaning Waste from Flexibles to cFlakes with HydroClean ColdWash
Input from Waste
Flexible Flakes at a Size Distribution from 15 to 45 mm
HydroClean/CS Systempurifies Flexibles to < 1,000 ppm residual Contamination
SpinDryerdewaters Flexibles for Squeeze Drying to < 15%
FlexDryeris drying thin Flexibles to < 2% and dissolutes to single Flakes
AeroSeparatorpurifies Flexibles from 3D rejects like Wood, Foam, Rubber, …
Polymer Output
Cleaned Flexible cFlakes for mechanical Recycling or Pyrolysis
Leadership
Circular Projects GmbH is led by Michael Hofmann and Dirk Schneider, who together bring decades of experience in polymer processing, mechanical engineering, and sustainable industrial operations.
Michael Hofmann
Management
Dirk Schneider
Management