CompostingPosidonia oceanicaand Sewage Sludge: Chemical and Spectroscopic Investigation
| Autor: | Vito Carella, Maria Rosaria Provenzano, Anna Daniela Malerba |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Ecology
biology Chemistry Chemical process of decomposition Soil Science Substrate (chemistry) Mineralization (soil science) biology.organism_classification Humus Fluorescence spectroscopy Posidonia oceanica Environmental chemistry Fourier transform infrared spectroscopy Waste Management and Disposal Sludge |
| Zdroj: | Compost Science & Utilization. 23:154-163 |
| ISSN: | 2326-2397 1065-657X |
| Popis: | In this article composting of 40% Posidonia oceanica, 20% ligno-cellulosic residues, and 40% sewage sludge was monitored by retrieving samples every 2 weeks from the composting pile and by characterizing them both by chemical and spectroscopic analysis in Fourier transform infrared spectroscopy and fluorescence spectroscopy in the emission mode and as EEM spectra. Chemical data indicated the occurrence of extended mineralization and stabilization during the process. The decreasing trend of E4/E6 ratios suggested a progressive humification of the substrate. Ratios of peaks of aliphatics to aromatics as a function of composting time showed a decreasing trend due to consumption of aliphatic structures and increase of aromatics during the process. The trend of fluorescence intensity observed on emission spectra showed an increase up until 6 weeks and then a decrease until the end of the process, as a consequence of the decomposition process, which broke down organic macromolecules contained in the fre... |
| Databáze: | OpenAIRE |
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