Methods, processes and technologies for recovering nutrients from organic waste






05. - 06. March 2020

1st abonocare conference


The very first abonocare® conference on recycling organic waste was held from 5 - 6 March 2020. The event was a resounding success. Around 100 guests enjoyed 30 fascinating presentations across six topic sessions, along with lively discussion of innovations, novel processes and technologies and the latest developments in the field of recycling.





Speakers gave a variety of presentations about ongoing research and development and the current legal climate, in addition to customer requirements, challenges and success stories related to the recycling of organic waste. All highlighted presentations are available to download.



1st session: abonocare® - driving the circular economy:


Topic Presentation Speaker
Innovations in the abonocare network: an overview B. Faßauer (Fraunhofer Institute for Ceramic Technologies and Systems)
New fertilisers from recycled material: European and German legislation from the perspective of a state ministry S. Apitz (Hesse Ministry of the Environment, Chairman of the German Phosphorus Platform)
Phosphorous and other critical raw materials: an overview Prof. M. Bertau (TU Bergakademie Freiberg)
Safe disposal and nutrient recovery: strategic options of municipal utility companies R. Strothteicher (Technical Managing Director of Stadtentwässerung Dresden)
The Fertiliser Ordinance and what it means for slurry and digestate: an agricultural perspective G. Reinhold (Thuringia State Office for Agriculture and Rural Areas)


2nd session: The challenges of recycling nutrients from different sources:


Topic Presentation Speaker
From waste to product: how abonocare connects individual technologies to create optimised technology chains F. Niebling (GICON - Großmann Ingenieur Consult GmbH)
An overview of natural sources and nutrient recovery methods B. Schwarz (Fraunhofer Institute for Ceramic Technologies and Systems)
Municipal and industrial sources of waste for nutrient recovery Prof. Ch. Dornack (TUD, Head of IAK institute)
Methods for recovering nutrients from agricultural digestate T. Haupt, Bauhaus-Universität Weimar Institut für zukunftsweisende Infrastruktursysteme
Logistical challenges in nutrient recovery D. Spreer (CEO of HVT Handel Vertrieb Transport GmbH)


3rd session: Separation and concentration of nitrogen compounds:


Topic Presentation Speaker
European solution approaches for nitrogen (nutrient) recovery in the EU project SYSTEMIC O. Schoumans (Universität Wageningen (NL)
An economic perspective on biogas and technical nutrient recovery from digestate L. Hermann (Proman Management GmbH (Österreich)
Stripping digestates - potential and challenges U. Bauermeister (GF GNS)
Purifying waste gas with nutrient recovery from digestate B. Schmitz (GF A&U)
Ceramic membranes for separating nitrogen from vapour using membrane contactors H. Richter (Fraunhofer IKTS)
Electrochemical nutrient recovery S. Egner (Fraunhofer IGB)


4th session: Innovative phosphorus recovery methods:


Topic Presentation Speaker
Phosphorus recovery: methods and status quo T. Knickel, (Managing Director of Deutsche Phosphorplattform e.V.)
Developing methods to recover ashes with low levels of heavy metals during sewage sludge combustion U. Petasch (Fraunhofer IKTS)
Hydrothermal extraction of phosphate from sewage sludge P. Körner (DBFZ)
Generating phosphoric acid from organic waste P. Fröhlich (PARFORCE Engineering & Consulting GmbH)
Recovering phosphorus through low temperature conversion and thermochemical treatment of sewage sludge Steckenmesser, D.  (Ingenieurbüro Schnittstelle Boden, Gießen)


5th session: Product design and feeding nutrients back into agricultural cycles:


Topic Presentation Speaker
A targeted nutrient supply for intensive arable farming Prof. Dr. sc. agr. Hartmut Stützel, (University of Hanover, Institute of Horticultural Production Systems)
How do you optimise the uptake of nutrients from recycled organic waste? Prof. EM. Dr. Heiner Goldbach (HGoTech GmbH)
What is the market looking for? C. Lange, BAYWA AG
PHOS4green: high-performance fertiliser from sewage sludge ash Jan Kirchhof (Glatt Ingenieurtechnik GmbH)
Peat-free specialised soils Rene Schieritz (Veolia Klärschlammverwertung Germany)