Optimised use of grease separators to recover resources and reduce negative environmental impacts (FAFODI)
Funding: European Union, European Regional Development Fund, Interreg Austria-Bavaria 2014-2020
Funding period: 11/2018- 04/2022
Project partner:
- Institute for Infrastructure, University of Innsbruck
- University of the Federal Armed Forces Munich
- Achental - Inntal - Zillertal wastewater association
- Dr.-Ing. Steinle Ingenieurgesellschaft für Abwassertechnik mbH, Weyarn
- Waste Management Tyrol Centre
Project description:
Fats in wastewater cause problems in the sewer system and additional oxygen demand in the wastewater treatment plant. On the other hand, renewable energy can be obtained from the fats. The installation of grease separators in catering establishments and businesses is state of the art. In practice, however, the situation regarding the use and operation of grease separators is often unsatisfactory. However, there is a lack of reliable data to quantify the impact of uninstalled or inadequately maintained grease separators.
The project aims to help identify technical, economic and ecological optimisation potential. To this end, the effects of optimised grease trap maintenance on the separation efficiency of the systems and the wastewater pollution of the catchment area will be investigated using a model area. An optimised grease trap maintenance concept will be developed and implemented for the model catchment area and the effects on the wastewater will be recorded. Furthermore, the potential of different collection systems with regard to reducing the input of pollutants into the wastewater (fats, microplastics) and increasing the collection volume of used fats will be investigated. The input of microplastics into the environment via grease separators will be investigated using the example of wastewater treatment plant grease collection. Waste fats can be used to generate renewable energy, and the quality of the collected fats for the production of biodiesel is to be determined. Furthermore, the economic and ecological effects of the optimised concept are to be investigated. A key point is the implementation of the knowledge gained in the final phase of the project. To this end, various associations and stakeholders have already expressed their interest in participating in the run-up to the application.
Contact:
University of Innsbruck
Univ-Prof. Dr.-Ing. Anke Bockreis
Technikerstrasse 13
6020 Innsbruck
anke.bockreis@uibk.ac.at
Latest news:
Fully utilising the environmental potential of grease separators
Recently, a project was launched with the participation of the working group for waste treatment and resource management at the University of Innsbruck, which is investigating the utilisation of grease... [more]
Management of fats in wastewater
Exchange of experience and discussion rounds
Webinar 13.10.2021 9-12 am
We invite you to a discussion round. Share your experiences with us and discuss with other stakeholders from Austria, Germany and South Tyrol. [to the flyer]
Homepage online
www.abwasserreinigung-tirol.at/fettabscheider/
On the homepage you will find important information about grease separators and the tool for calculating the grease separator dimension.
Innsbruck Waste and Resources Day 2022
Where is biogenic waste collection and recycling heading?
Wednesday, 15 June 2022 in Innsbruck
Publications
- Hubert, Christian; Ruf, Anastasia; Krause, Steffen; Schaum, Christian (2022): The grease trap at wastewater treatment plants - often neglected and yet with potential? Innsbrucker Abfall- und Ressourcentag 2022. Where is biogenic waste collection and recycling heading?, Innsbruck, 15.06.2022.
- Lichtmannegger, Thomas (2022): Energetic potential of grease separators - Possible rates of increase and limits of optimised management. Innsbrucker Abfall- und Ressourcentag 2022. Where is biogenic waste collection and recycling heading?, Innsbruck, 15.06.2022. Presentation.
- Poller, Reinhard; Ortner, Maria (2022): Integrated collection concepts for grease traps and biowaste. Innsbrucker Abfall- und Ressourcentag 2022. Where is biogenic waste collection and recycling heading?, Innsbruck, 15/06/2022.
- Lichtmannegger, Thomas; Kinzel, Carolina; Knapp, Julika; Ebner, Christian; Bockreis, Anke (2022): Energy potential of grease separators - possible rates of increase and limits of optimised management. 11th Science Congress on Waste and Resource Management, Dresden, 17 March 2022. In: Bockreis, A.; Faulstich, M.; Flamme, S.; Kranert, M.; Mocker, M.; Nelles, M.; Quicker, P.; Rettenberger, G.; Rotter: 11th Science Congress on Waste and Resource Management. Innsbruck: innsbruck university press (IUP), ISBN 978-3-99106-064-2, pp. 151 - 155.
- Hubert, Christian; Steiniger, Bettina; Schaum, Christian (2022): Obstacles in Co-Digestion: Grease Trap Wastes (GTW). 17th IWA World Conference on Anaerobic Digestion. 19.06.-22.06.2022. Ann Arbor, MI, USA.
- Fimml, Christian; Dengg, Josef (2022): Influence of fatty wastewater on the sewerage system and wastewater treatment plant - experiences of a sewerage company. ÖWAV seminar "Grease separator systems - Presentation of ÖWAV Code of Practice 39 NEW. Changes due to simplified monitoring according to IEV". 24 May 2022, Vienna.
- Bockreis, Anke; Lichtmannegger, Thomas (2021): Energy recovery from grease separator contents in a Tyrolean tourism area. In: Energy Research Talks Disentis 2021. Disentis: Foundation Alpine Energy Research Centre AlpEnForCe, ISBN 978-3-033-08346-2, vol. anthology of the 6th Energy Research Talks, p. 12 - 14.
- Lichtmannegger, Thomas; Kinzel, Carolina; Knapp, Julika; Ebner, Christian; Bockreis, Anke (2020): Opportunities and challenges of optimised utilisation of grease separator contents in a Tyrolean tourism region. 10th Science Congress on Waste and Resource Management (online), Dresden, 9 October 2020. In: Bockreis, A.; Faulstich, M.; Flamme, S.; Kranert, M.; Mocker, M.; Nelles, M.; Quicker, P.; Rettenberger, G.; Rotter: 10th Science Congress on Waste and Resource Management. 19 and 20 March 2020 at the Technical University of Dresden. Innsbruck: innsbruck university press (IUP), ISBN 978-3-903187-96-2, pp. 225 - 229.
- Lichtmannegger, Thomas; Kinzel, Carolina; Knapp, Julika; Ebner, Christian; Bockreis, Anke (2020): Opportunities and hurdles of optimised utilisation of grease separator contents in a Tyrolean tourism region. In: Pomberger, Roland; Adam, Josef; Aldrian, Alexia; et al: Recy & DepoTech 2020. Conference proceedings of the 15th Recy & DepoTech Conference. November 18th-20th, 2020 in Leoben, Austria. Leoben: AVAW Chair of Waste Utilisation Technology and Waste Management, pp. 751 - 754. Poster.
- Lichtmannegger, Thomas; Kinzel, Carolina; Knapp, Julika; Müller, Wolfgang; Bockreis, Anke (2019): Resource recovery through optimised grease trap utilisation (FAFODI). Eisenstadt, 16.05.2019. In: Austrian Water and Waste Management Association (ed.): Vom Wert- zum Werkstoff. The implementation of the EU Circular Economy Package in Austria. Austrian Waste Management Conference 2019, Vienna: Austrian Water and Waste Management Association (ÖWAV), ISBN 978-3-903149-89-2. Poster.