Correlations between enzymatic activities and physiochemical / chemical characteristics of MSW composts during controlled storage

The purpose of this study was following some enzymatic activities [lipases (C10), cellulases and proteases] of three different Portuguese MSW composts during their storage at controlled conditions and trying to understand the relationship between enzymatic activities and physicochemical/chemical parameters.

During 40 weeks, the stored composts were analysed regularly since they get out of composting plants. In order to characterise the composts, enzymatic activities [lipases (C10), cellulases and proteases] and parameters such as moisture, organic matter, total nitrogen, ammonium nitrogen, C:N ratio, pH and electrical conductivity were evaluated. Results showed some correlation between total and ammonium nitrogen and the studied enzymatic activities. Moreover, some correlations among studied enzymatic activities were found.



Copyright: © European Compost Network ECN e.V.
Quelle: ORBIT 2003 (Mai 2003)
Seiten: 7
Preis: € 0,00
Autor: M.-Christine Freitas Morais
Prof. A. Cristina Cunha Queda
 
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