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Study of the organic matter evolution during municipal solid waste composting aimed at identifying suitable parameters for the evaluation of compost maturity.
Waste Manag. 2005; 25(2):209-13.WM

Abstract

In this work the composting process of municipal solid wastes was studied in order to characterize the transformations of organic matter, particularly humic acid (HA). A composting process, lasting three months, was monitored by chemical methods; the following parameters were measured: water-soluble carbon concentration (WSC) and humic substances content (humic and fulvic acid (FA)). The effects of humification on the molecular structure of humic acid (HA) were also evaluated by Fourier transform infrared (FT-IR) and (13)C NMR spectroscopy. WSC concentration rapidly increased reaching a maximum at day-14 of the composting process and then declined. The humic and fulvic acid content (HA and FA, respectively) slightly increased during the process. The FT-IR and (13)C NMR spectra of HA indicate a high rate of change in structure during composting. The groups containing aromatic and carboxylic C increased, while polysaccharides and other aliphatic structures degraded during composting, resulting in HA structures of higher aromaticity. Therefore, spectrometric measurements could provide information significantly correlated to conventional chemical parameters of compost maturity.

Authors+Show Affiliations

Università di Sassari, Di.S.A.A.B.A, Sez. di Chimica Agraria ed Ambientale, Viale Italia 39, 07100 Sassari, Italy.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15737720

Citation

Castaldi, Paola, et al. "Study of the Organic Matter Evolution During Municipal Solid Waste Composting Aimed at Identifying Suitable Parameters for the Evaluation of Compost Maturity." Waste Management (New York, N.Y.), vol. 25, no. 2, 2005, pp. 209-13.
Castaldi P, Alberti G, Merella R, et al. Study of the organic matter evolution during municipal solid waste composting aimed at identifying suitable parameters for the evaluation of compost maturity. Waste Manag. 2005;25(2):209-13.
Castaldi, P., Alberti, G., Merella, R., & Melis, P. (2005). Study of the organic matter evolution during municipal solid waste composting aimed at identifying suitable parameters for the evaluation of compost maturity. Waste Management (New York, N.Y.), 25(2), 209-13.
Castaldi P, et al. Study of the Organic Matter Evolution During Municipal Solid Waste Composting Aimed at Identifying Suitable Parameters for the Evaluation of Compost Maturity. Waste Manag. 2005;25(2):209-13. PubMed PMID: 15737720.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Study of the organic matter evolution during municipal solid waste composting aimed at identifying suitable parameters for the evaluation of compost maturity. AU - Castaldi,Paola, AU - Alberti,Guido, AU - Merella,Roberto, AU - Melis,Pietro, PY - 2004/12/17/accepted PY - 2005/3/2/pubmed PY - 2005/7/12/medline PY - 2005/3/2/entrez SP - 209 EP - 13 JF - Waste management (New York, N.Y.) JO - Waste Manag VL - 25 IS - 2 N2 - In this work the composting process of municipal solid wastes was studied in order to characterize the transformations of organic matter, particularly humic acid (HA). A composting process, lasting three months, was monitored by chemical methods; the following parameters were measured: water-soluble carbon concentration (WSC) and humic substances content (humic and fulvic acid (FA)). The effects of humification on the molecular structure of humic acid (HA) were also evaluated by Fourier transform infrared (FT-IR) and (13)C NMR spectroscopy. WSC concentration rapidly increased reaching a maximum at day-14 of the composting process and then declined. The humic and fulvic acid content (HA and FA, respectively) slightly increased during the process. The FT-IR and (13)C NMR spectra of HA indicate a high rate of change in structure during composting. The groups containing aromatic and carboxylic C increased, while polysaccharides and other aliphatic structures degraded during composting, resulting in HA structures of higher aromaticity. Therefore, spectrometric measurements could provide information significantly correlated to conventional chemical parameters of compost maturity. SN - 0956-053X UR - https://www.unboundmedicine.com/medline/citation/15737720/Study_of_the_organic_matter_evolution_during_municipal_solid_waste_composting_aimed_at_identifying_suitable_parameters_for_the_evaluation_of_compost_maturity_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-053X(05)00015-2 DB - PRIME DP - Unbound Medicine ER -