Regenerative Energie
The purpose of this study is following the evolution of some parameters of three MSW composts during storage and trying to correlate them.
The composts are from three different zones of Portugal and they use to be sold to farmers as soil amendments. During all time of study, the stored composts were analysed regularly during 40 weeks since they get out of the composting plants. Conditions of the storage room were controlled such as temperature and moisture. During storage, the level of maturity and stability of the composts are evaluated by studying the evolution of phytotoxicity (measured by means of the germination test with Lepidium sativum L.), physicochemical and chemical parameters (moisture, organic matter, total nitrogen, ammonium nitrogen, C:N ratio, pH and electrical conductivity) and self-heating capacity. Results showed that storage improves the quality of composts namely for the stability parameter studied, the self-heating capacity. Only after 25 weeks of storage all composts reached the highest class according to Laga-Merkblatt M10 classification. The phytotoxicity evolution was different for all composts, and seems much related to the physicochemical and chemical parameters, such as electrical conductivity.
| Copyright: | © European Compost Network ECN e.V. |
| Quelle: | ORBIT 2003 (Mai 2003) |
| Seiten: | 9 |
| Preis: | € 0,00 |
| Autor: | M.-Christine Freitas Morais Prof. A. Cristina Cunha Queda |
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© Lexxion Verlagsgesellschaft mbH (6/2025)
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© Lexxion Verlagsgesellschaft mbH (6/2025)
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© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (5/2025)
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