UV-Visible and Fluorescence Green Waste Composts Monitoring: Material Dependency

The most frequent way to survey green waste composts is to monitor the temperature during the composting process. However, if the temperature is a good index for global biological processes, it is not for the chemical stability. In order to identify a reliable index, this work investigates water ext...

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Bibliographic Details
Published in:Compost science & utilization 2018-07, Vol.26 (3), p.177-188
Main Authors: Abaker, M. G., Domeizel, M., Mouloubou, O. R., Rapetti, N., Mounier, S.
Format: Article
Language:English
Subjects:
Biological activity
Composition
Composting
Composts
Dependence
Fluorescence
Information processing
Organic chemistry
Ratios
Recycling centers
Stability
Surveying
Temperature
Ultraviolet radiation
Waste materials
Yard waste
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Summary:The most frequent way to survey green waste composts is to monitor the temperature during the composting process. However, if the temperature is a good index for global biological processes, it is not for the chemical stability. In order to identify a reliable index, this work investigates water extraction coupled to spectroscopic indexes such as E 2 /E 3 , E 4 /E 6 , and SUVA 254 ratios, and fluorescence indexes such as Kalbitz, Milori, CP/PARAFAC, and Fluorescence Region Integration. The measurements of these indexes are carried out with six samples from different sites with different green waste material composition. The results show that most indexes depend on the green waste origin more than the composting time; some depend mostly on the material origin while others on compost age. A comparison of these results indicates that the biochemical process occurs more rapidly than expected by the compost producers. The combination of these indicators gives useful information on the processes that take place during composting.
ISSN:1065-657X
2326-2397
DOI:10.1080/1065657X.2018.1434023