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Assessment of sampling and chemical analysis of source--separated organic household waste

la Cour Jansen, Jes LU ; Spliid, H; Hansen, TL; Svard, Åsa and Christensen, TH (2004) In Waste Management 24(6). p.541-549
Abstract
The quality of the waste sampling procedure and chemical analysis was evaluated in a research program on characterization of organic waste obtained after disc screening of source-separated organic household waste. The sampling procedures focused on a truckload of waste and involved several steps of subsampling including shredding, mixing, blending, high-speed-blending, drying and milling prior to analysis of the organic waste with respect to ash content, crude fibers, crude fat, crude protein, sugar, starch, enzyme-digestible organic matter, P, N, C, H, S and calorific value. The statistical evaluation of the procedures involved 10 samples of the same truckload of waste obtained by splitting the sample at each level in the procedure... (More)
The quality of the waste sampling procedure and chemical analysis was evaluated in a research program on characterization of organic waste obtained after disc screening of source-separated organic household waste. The sampling procedures focused on a truckload of waste and involved several steps of subsampling including shredding, mixing, blending, high-speed-blending, drying and milling prior to analysis of the organic waste with respect to ash content, crude fibers, crude fat, crude protein, sugar, starch, enzyme-digestible organic matter, P, N, C, H, S and calorific value. The statistical evaluation of the procedures involved 10 samples of the same truckload of waste obtained by splitting the sample at each level in the procedure according to a staggered, incomplete nested statistical design. Furthermore, one sample was analysed six times over a period of approximately one year. The statistical evaluation showed that no single step in the sampling procedure contributed with excessive variance and that the variance caused by the sampling procedure was approximately the same as the variance in the chemical analysis observed over a year. The variance varied with the analytical parameter but for most parameters the uncertainty was satisfactorily low (of the order of 3-10% expressed as the relative standard deviation, which is considered to be satisfactory for waste characterization). (C) 2004 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Waste Management
volume
24
issue
6
pages
541 - 549
publisher
Elsevier
external identifiers
  • wos:000222854500003
  • scopus:3042598273
ISSN
1879-2456
DOI
10.1016/j.wasman.2004.02.013
language
English
LU publication?
yes
id
c351d9cb-d2eb-472c-89f0-e7ee88a22167 (old id 272288)
date added to LUP
2007-08-02 15:54:18
date last changed
2017-05-28 04:30:59
@article{c351d9cb-d2eb-472c-89f0-e7ee88a22167,
  abstract     = {The quality of the waste sampling procedure and chemical analysis was evaluated in a research program on characterization of organic waste obtained after disc screening of source-separated organic household waste. The sampling procedures focused on a truckload of waste and involved several steps of subsampling including shredding, mixing, blending, high-speed-blending, drying and milling prior to analysis of the organic waste with respect to ash content, crude fibers, crude fat, crude protein, sugar, starch, enzyme-digestible organic matter, P, N, C, H, S and calorific value. The statistical evaluation of the procedures involved 10 samples of the same truckload of waste obtained by splitting the sample at each level in the procedure according to a staggered, incomplete nested statistical design. Furthermore, one sample was analysed six times over a period of approximately one year. The statistical evaluation showed that no single step in the sampling procedure contributed with excessive variance and that the variance caused by the sampling procedure was approximately the same as the variance in the chemical analysis observed over a year. The variance varied with the analytical parameter but for most parameters the uncertainty was satisfactorily low (of the order of 3-10% expressed as the relative standard deviation, which is considered to be satisfactory for waste characterization). (C) 2004 Elsevier Ltd. All rights reserved.},
  author       = {la Cour Jansen, Jes and Spliid, H and Hansen, TL and Svard, Åsa and Christensen, TH},
  issn         = {1879-2456},
  language     = {eng},
  number       = {6},
  pages        = {541--549},
  publisher    = {Elsevier},
  series       = {Waste Management},
  title        = {Assessment of sampling and chemical analysis of source--separated organic household waste},
  url          = {http://dx.doi.org/10.1016/j.wasman.2004.02.013},
  volume       = {24},
  year         = {2004},
}