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Home composting versus industrial composting: Influence of composting system on compost quality with focus on compost stability

Authors
  • Barrena, Raquel
  • Font, Xavier
  • Gabarrell, Xavier
  • Sánchez, Antoni1, 2, 3, 4, 5, 2, 6
  • 1 Composting Research Group (GICOM)
  • 2 Department of Chemical Engineering
  • 3 Universitat Autònoma de Barcelona (UAB)
  • 4 SosteniPrA Research Group
  • 5 Institute of Environmental Science and Technology (ICTA)
  • 6 Universitat Autònoma de Barcelona
Type
Published Article
Journal
Waste Management
Publisher
Elsevier
Publication Date
Jan 01, 2014
Accepted Date
Feb 11, 2014
Identifiers
DOI: 10.1016/j.wasman.2014.02.008
Source
Elsevier
Keywords
License
Unknown

Abstract

Stability is one of the most important properties of compost obtained from the organic fraction of municipal solid wastes. This property is essential for the application of compost to land to avoid further field degradation and emissions of odors, among others. In this study, a massive characterization of compost samples from both home producers and industrial facilities is presented. Results are analyzed in terms of chemical and respiration characterizations, the latter representing the stability of the compost. Results are also analyzed in terms of statistical validation. The main conclusion from this work is that home composting, when properly conducted, can achieve excellent levels of stability, whereas industrial compost produced in the studied facilities can also present a high stability, although an important dispersion is found in these composts. The study also highlights the importance of respiration techniques to have a reliable characterization of compost quality, while the chemical characterization does not provide enough information to have a complete picture of a compost sample.

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