Shoe manufacturing wastes: Characterisation of properties and recovery options
| Autor: | Lucia Tombari, Filippo Mangani, Silvia Pretelli, Nadia Acerbi, Chiara Monterubbiano, Fabio Tatàno |
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| Rok vydání: | 2012 |
| Předmět: |
Emission characterisation
Economics and Econometrics Energy recovery Flue gas Waste management Burning test Energy content Fertiliser quality profile Property characterisation Shoe manufacturing waste chemistry.chemical_element Nitrogen Humus chemistry.chemical_compound chemistry Natural rubber visual_art visual_art.visual_art_medium Environmental science Heat of combustion Cellulose Waste Management and Disposal NOx |
| Zdroj: | Resources, Conservation and Recycling. 66:66-75 |
| ISSN: | 0921-3449 |
| DOI: | 10.1016/j.resconrec.2012.06.007 |
| Popis: | Using the renowned shoe manufacturing sector in Marche Region (Italy) as a case-study, this paper deals with the characterisation of (1) the chemical and physical properties of representative types of shoe manufacturing wastes, (2) the quality profile of a particular material recovery finalised to a soil destination, and (3) the flue gas emissions from burning tests in view of the potential for energy recovery. The property characterisation has primarily revealed the following aspects: a general condition of resulting higher ash contents in shoe waste materials having a mineral or synthetic processing origin; and relatively high energy contents, ranging on the whole expressed as LHV (lower heating value) from 15,710 kJ kg−1 (for vegetable-tanned leather dust) to 42,439 kJ kg−1 (for natural rubber). The characterisation of a fertiliser that can be generated from the particular waste type of vegetable-tanned leather dust has determined an interesting quality profile classifiable as organic-nitrogen fertiliser with acceptable values of the humification parameters and heavy metal contents significantly below the assumed quality limits. Finally, simplified pilot-scale burning tests have provided the following findings: higher NOx emissions produced from leather-based materials as compared with the cellulose-based material, which are likely attributable to the substantial “fuel nitrogen” content of the original animal skins; higher HCl emissions produced from the leather-based materials in comparison with the cellulose-based material; and a more even combustion process occurred for the leather dust than for the other shoe materials. |
| Databáze: | OpenAIRE |
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