Molecular composition of recycled organic wastes, as determined by solid-state ¹³C NMR and elemental analyses

S. M. Eldridge, C. R. Chen, Z. H. Xu, P. N. Nelson, S. E. Boyd, I. Meszaros, K. Y. Chan

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    Using solid state ¹³C NMR data and elemental composition in a molecular mixing model, we estimated the molecular components of the organic matter in 16 recycled organic (RO) wastes representative of the major materials generated in the Sydney basin area. Close correspondence was found between the measured NMR signal intensities and those predicted by the model for all RO wastes except for poultry manure char. Molecular nature of the organic matter differed widely between the RO wastes. As a proportion of organic C, carbohydrate C ranged from 0.07 to 0.63, protein C from <0.01 to 0.66, lignin C from <0.01 to 0.31, aliphatic C from 0.09 to 0.73, carbonyl C from 0.02 to 0.23, and char C from 0 to 0.45. This method is considered preferable to techniques involving imprecise extraction methods for RO wastes. Molecular composition data has great potential as a predictor of RO waste soil carbon and nutrient outcomes.
    Original languageEnglish
    Pages (from-to)2157-2169
    Number of pages13
    JournalWaste Management
    Volume33
    Issue number11
    DOIs
    Publication statusPublished - 2013

    Keywords

    • Carbon sequestration
    • Detergent fibre analysis
    • Lignin
    • Molecular mixing model
    • Nitrogen mineralisation
    • NMR

    Fingerprint Dive into the research topics of 'Molecular composition of recycled organic wastes, as determined by solid-state ¹³C NMR and elemental analyses'. Together they form a unique fingerprint.

    Cite this