Regenerative Energie
Most of the organic material containing high dry matter percentage is treated in an aerobic way like composting. Regarding process energy balance in this biological treatment at least mechanical power has to be added for periodic turning of the substrates.
Secondly it is impossible to use the energy accruing during the process. Treating such substrates in conventional liquid biogas plants high volumes of water are necessary, which remain in most cases as wastewater subsequently. In relation to the quantities of feed material, high plant and process energy costs are incurred for material conveyance and maintaining temperatures. The development of the new 3A-biogas batch-process for solid state biowaste can reach the best available synergies of composting and fermentation technology. It combines biogas- and compost- production including sanitation of the compost. The 3A process itself was patented in 1988 by Dr. Ing. Heinz Steffen (Steffen, 1988) as a discontinuous procedure. The biological decomposition takes place during 3 operating phases (aerobic, anaerobic, aerobic) in a closed domain without intermediate movement of substrates. The procedure was improved in 1996 by the patented crosswise percolation-water feed (Steffen, 1996). Using the experience gathered in extensive laboratory experiments, the new 3A-biogas batch system has to be up-scaled to prototype size in the following project. The European Commission founds it as a CRAFT project in the 5th framework program in the area of Energy, Environment and Sustainable Development.
| Copyright: | © European Compost Network ECN e.V. |
| Quelle: | ORBIT 2003 (Mai 2003) |
| Seiten: | 6 |
| Preis: | € 0,00 |
| Autor: | Ing Horst Müller Oliver Schmidt Anton Daxl Johann Bergmair |
| Artikel nach Login kostenfrei anzeigen | |
| Artikel weiterempfehlen | |
| Artikel nach Login kommentieren | |
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.
Transformatives Klimarecht: Raum, Zeit, Gesellschaft
© 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.
Maßnahmen zur Klimaanpassung sächsischer Talsperren
© 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.