Regenerative Energie
Composting is widely used as a biosolids stabilisation process, which also results in the reduction of human pathogens to very low levels. However, bacterial pathogens such as Salmonella and E. coli can survive composting process in low numbers, under certain conditions. Potential risks to public health posed by the regrowth of surviving Salmonella in biosolids are a cause of concern.
The purpose of this study was to evaluate the public health risks posed by the regrowth of Salmonella in composted biosolids. Salmonella regrowth potential tests were carried out on composted biosolids stored for 2 to 117 weeks. Maximum growth of seed Salmonella typhimurium observed in non-sterilised composted biosolids was 9.8 x 102 g-1. Indigenous compost microflora was found to be the single major factor responsible for inhibiting Salmonella regrowth. In the absence of competing indigenous microflora the maximum growth of S. typhimurium was more than 6 x 106 g-1. Long term storage was found to result in an increased pathogen regrowth potential. An assessment of potential public health risks associated with the use of contaminated compost was carried out on the basis of data produced in this study. The probability of infection in an event of Salmonella regrowth was found to be higher than the acceptable limits for both pica children and adults. Consequently, it is suggested that monitoring for Salmonella should be carried out prior to the distribution of biosolids.
| Copyright: | © European Compost Network ECN e.V. |
| Quelle: | ORBIT 2003 (Mai 2003) |
| Seiten: | 6 |
| Preis: | € 0,00 |
| Autor: | J Sidhu R.A. Gibbs Prof. Goen Ho |
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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.