Struvite and Others: How Do Recycled Fertilizers Contribute to the European Circular Bioeconomy?

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Production, laboratory and field trials, and the legal framework—A technical workshop organized by the Interreg North-West Europe projects ReNu2Cycle and BioBoost-Pro

From October 5 to 6, 2026, the two Interreg North-West Europe projects, ReNu2Cycle and BioBoost-Pro, are hosting a two-day expert workshop on the topic of nutrient recycling and organic fertilizers. The event aims to bring together stakeholders from academia, agriculture, industry, politics, and government to discuss innovative solutions for a sustainable and circular nutrient economy. Experts include: Karsten Wilhelm (IfaS), Sascha Hermus (3N), Laura von Scholl (NMI), Dr. Annmarie Ryan (University of Limerick), Bernhard Wern (IZES), Dr. Joachim Pertagnol (IZES), and Arthur Libault (Centre de Recherches en Agriculture Urbaine)

The workshop will focus on the production and application of recycled fertilizers, current results from field and pot trials, and experiences from the Living Labs of both projects. Successful practical examples from Germany, Luxembourg, Ireland, Belgium, and France, among others, will be presented. In addition, current political and regulatory developments—including the EU Fertilizer Products Regulation (Regulation (EU) 2019/1009, FPR), phosphorus recovery, nitrogen recycling, and RENURE (REcovered Nitrogen from manURE)—as well as their significance for the future market introduction of recycled fertilizers will be examined.

In addition to expert presentations, the workshop is designed to provide plenty of opportunity for interdisciplinary exchange and networking among researchers, practitioners, and policymakers. Together, participants will discuss opportunities, challenges, and potential solutions for the use of recycled nutrients in agriculture and provide impetus for the further development of a circular bioeconomy.

The event will be conducted bilingually in German and English with simultaneous interpretation.

More information will follow shortly. Please save the date!

Key Figures

Date:

October 5 and 6, 2026

Venue:

Hotel Heidejäger
Rotenburger Straße 62
27356 Rotenburg
Deutschland

Registration fee:

free of charge

Programme

to follow

Registration

To register, please use the online form below. The registration deadline is October 1, 2026. For organizational reasons, participation is limited.

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Entry in the list of participants

We will compile a list of participants, which will be provided to attendees in printed form as part of the conference materials. This list includes the participants’ names and, where applicable, their company or institution, and is intended to provide an overview and facilitate contact.
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Consent to the Privacy Policy

The participant is informed that the personal data required to process the event (first name, surname, address, contact data) will be stored by 3N on electronic data carriers.
The participant expressly consents to the collection, processing and use of personal data by 3N for processing the event. The stored personal data will be treated confidentially by 3N. Data will be shared exclusively with IZES gGmbH (co-organizer).
The collection, processing and use of the participant's personal data is carried out in compliance with the General Data Protection Regulation (GDPR). The participant has the right to revoke his/her consent at any time with effect for the future. In this case, 3N is obliged to immediately delete the personal data of the participant, provided that there are no storage obligations to the contrary.
To the data privacy statement.Eine Weitergabe der Daten erfolgt ausschließlich an die IZES gGmbH (Mitveranstalter).