Modelling and nonlinear control of anaerobic co-digestion of agricultural waste

There is a clear need of a global stabilization and optimization of the process, which can be reached amongst others through an appropriate control system. In order to assess the performance of a control system with a limited set of experiments, it is possible to develop a model based process simulator, on which the potential regulating techniques can be inexpensively tested.

The very detailed model proposed by Batstone et al. (ADM1) is used to simulate an anaerobic digestion process of two agricultural substrates, manure and corn silage. The simulation is able to reproduce literature data and the characteristic dynamics of the process, including the buffer capacity of ammonia and its positive effects on the stability of the process. The model can be used as a virtual laboratory platform (so-called test-problem) in order to design and evaluate the performance of control systems.

 

 

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.

 

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