Regenerative Energie
The hypothesis of design type specific process temperature courses and their applicability to develop a hygiene quality assurance system was proved by investigating temperature measurements from 23 composting plants belonging to 11 design types of the Hygiene Design Type Testing System.
The temperature courses of single plants are not normally distributed, but were grouped by cluster analysis in normally distributed subgroups. For each plant the grade of hygienisation was calculated; it differed widely within the design types and fell below 50 % for about one fourth of the plants. The average temperature rise of the windrow systems was < 2° C/d whereas the box and tunnel systems showed partial rises of more than 20° C/d. Differences of plants within design types pointed to the effect of different process management strategies. Comparing location and variance showed mainly a proportion of unequal means of 75 % within the plants of a design type as well as between design types. Design type specific process temperature courses could not be asserted. Process stability and process capability as preconditions to design control charts were not given. A concept using the 90 % range of variation of the normal temperature courses was introduced. Comparing the design type range of variation with the legal temperature defaults showed hygienic risk areas which should be minimized through process optimization on a plant level. The need for further investigations was outlined.
| Copyright: | © European Compost Network ECN e.V. |
| Quelle: | ORBIT 2003 (Mai 2003) |
| Seiten: | 12 |
| Preis: | € 0,00 |
| Autor: | Dr.-Ing. Jürgen Martens |
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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.
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.