Spectroscopic, thermogravimetric and structural characterization analyses for comparing Municipal Solid Waste composts and vermicomposts stability and maturity
| Autor: | Hashita Joyram, Pravesh Raghoo, Yogeshwari Pooja Rago, Nuhaa Soobhany, Romeela Mohee, Sanjana Gunasee, Vinod Kumar Garg |
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| Rok vydání: | 2017 |
| Předmět: |
Thermogravimetric analysis
Environmental Engineering Municipal solid waste 020209 energy Analytical chemistry Bioengineering 02 engineering and technology 010501 environmental sciences engineering.material Raw material Solid Waste complex mixtures 01 natural sciences Soil Differential scanning calorimetry Spectroscopy Fourier Transform Infrared 0202 electrical engineering electronic engineering information engineering Fourier transform infrared spectroscopy Fertilizers Waste Management and Disposal 0105 earth and related environmental sciences Calorimetry Differential Scanning Renewable Energy Sustainability and the Environment Chemistry Compost General Medicine Refuse Disposal engineering Vermicompost Organic fertilizer |
| Zdroj: | Bioresource technology. 236 |
| ISSN: | 1873-2976 |
| Popis: | This is the first-ever study of its kind for an extensive assessment and comparison of maturity indexes between compost and vermicompost that have been derived from Municipal Solid Waste (MSW). The spectroscopic (Fourier transform infrared spectroscopy: FT-IR), thermogravimetric analysis (TG), differential scanning calorimetry (DSC) and structural characterization (scanning electron microscope: SEM) were recorded. FT-IR spectra showed an increase in conversion of polysaccharides species and aliphatic methylene groups in vermicompost compared to compost as depicted from the variation of the intensity of the peaks. TG curves of final vermicompost showed a much lower mass loss when compared to compost, indicating higher stability in feedstock. SEM micrographs of the vermicompost reflected strong fragmentation of material than composts which revealed the extent of intra-structural degradation of MSW. These findings elucidate on a clear comparison between composts and vermicomposts in terms of maturity indexes for soil enhancement and in agriculture as organic fertilizer. |
| Databáze: | OpenAIRE |
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