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Study of the composting process of winery and distillery wastes using multivariate techniques

Authors
Journal
Bioresource Technology
0960-8524
Publisher
Elsevier
Publication Date
Volume
100
Issue
20
Identifiers
DOI: 10.1016/j.biortech.2009.04.033
Keywords
  • Compost
  • Winery–Distillery Residues
  • Multivariate Analysis
  • Factorial Analysis
  • Linear Discriminant Analysis
Disciplines
  • Biology
  • Chemistry

Abstract

Abstract Physico-chemical, chemical and biological parameters were studied throughout the composting process of four winery and distillery composts and the data set of compost characteristics was analysed using multivariate techniques: factorial analysis (FA) and linear discriminant analysis (LDA), in order to classify the different parameters studied and thus, to establish those that better describe the composting process of this type of wastes. Through factorial analysis (FA) of the parameters studied throughout the composting process, four components that explained 85.6% of the variability were established. The parameters associated to compost maturity, agronomic character, water-soluble fraction and ammonia and temperature increment were grouped in the components F1, F2, F3 and F4, respectively, which can reduce the number of determinations needed to ascertain the maturity and quality of the composts. In addition, the linear discriminant analysis on the factorial components makes possible to classify the four composts with a percentage of success around 95%.

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