Regenerative Energie
Anaerobic digestion of wastes, by-products and energy crops has a prospering development for green energy production but the downstream processing of residues waste water and nutrients has not yet been solved. As these materials mainly have a high energetic potential, anaerobic digestion of animal by-products gives a promising solution in both, an economical and ecological view (Kirchmayr et al., 2006). Methane can be recovered and used in energy production to replace fossil fuels and thereby reduce CO2 emissions. In contrast to aerobic treatment, most of the nutrients remain in the treated material and the end-product can be used as agricultural fertilizer.
This study focuses on the enhancement of an Austrian anaerobic digestion plant operting exclusively on animal by products at a slaughterhouse site. Three cases of a new process setup are compared: The current situation as reference and the widening of COD:TKN ration by additional COD input and TKN reduction in form of ammonia stripping directly out of the process. The results show that the provided additional COD source can not improve the digestion capacity. The reduction and recovery of ammonia boosts the digestion process. An COD degration of 45 % was obtained in the reference situation and 81 % COD reduction was derived for low nitrogen case. Economic calculation show that the additional methane produced execceds the energy input required for the stripping processes.
| Copyright: | © IWWG International Waste Working Group |
| Quelle: | Specialized Session D (Oktober 2007) |
| Seiten: | 7 |
| Preis: | € 7,00 |
| Autor: | Dipl.-Ing. Dr. Christoph Resch Dipl.-ing Alexander Wörl Dipl.-Ing. Reinhold Waltenberger Rudolf Braun Dipl.-Ing. Roland Kirchmayr |
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Rechtliche und praktische Unsicherheiten bei der Durchführung des europäischen Klimaanpassungsrechts durch das Bundes- Klimaanpassungsgesetz (KAnG)
© Lexxion Verlagsgesellschaft mbH (6/2025)
In the context of the European Climate Law (EU) 2021/1119), the Governance Regulation (EU) 2018/1999 and the Nature Restoration Regulation (EU) 2024/1991, the KAnG came into force on July 1, 2024.
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© Lexxion Verlagsgesellschaft mbH (6/2025)
This article contends that climate law should be conceived as inherently transformative in a double sense. The law not only guides the necessary transformation of economy and society, but is itself undergoing transformation.
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© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (5/2025)
Die Landestalsperrenverwaltung des Freistaates Sachsen (LTV) betreibt aktuell insgesamt 87 Stauanlagen, darunter 25 Trinkwassertalsperren. Der Stauanlagenbestand ist historisch gewachsen und wurde für unterschiedliche Zwecke errichtet.