Spectroscopic characterization of water extractable organic matter during composting of municipal solid waste

This paper aims to characterize the evolution of water extractable organic matter (WEOM) during the composting of municipal solid waste (MSW), and investigate the correlation between maturity and WEOM characteristics. WEOM was extracted at different stages of MSW composting (0, 7, 14, 21, and 51 d)...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2011, Vol.82 (4), p.541-548
Main Authors: He, Xiaosong, Xi, Beidou, Wei, Zimin, Guo, Xujing, Li, Mingxiao, An, Da, Liu, Hongliang
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Fluorescence spectra
FTIR spectra
Multivariate Analysis
Municipal solid waste (MSW)
Pollution
Refuse Disposal - methods
Soil - chemistry
Spectrometry, Fluorescence
Spectroscopy, Fourier Transform Infrared
UV–Vis spectra
Water - chemistry
Water extractable organic matter (WEOM)
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Summary:This paper aims to characterize the evolution of water extractable organic matter (WEOM) during the composting of municipal solid waste (MSW), and investigate the correlation between maturity and WEOM characteristics. WEOM was extracted at different stages of MSW composting (0, 7, 14, 21, and 51 d) and characterized by FTIR, UV–Vis, and fluorescence spectroscopy. The results obtained show that the composting process decreased aliphatics, alcohols, polysaccharides, as well as protein-like materials, and increased aromatic polycondensation, humification, oxygen-containing functional groups, molecular weight, and humic-like materials. The maturity of MSW during composting was characterized by the presence of the peak with an excitation/emission wavelength pair of 289/421 nm in excitation–emission matrix spectra.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2010.10.057