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

Waste Management
Jes la Cour JansenThomas H Christensen

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 w...Continue Reading

Citations

Sep 26, 2013·Evidence-based Complementary and Alternative Medicine : ECAM·Qian Zhang, Chunsheng Li
Apr 15, 2004·Waste Management·Trine L HansenThomas H Christensen
Apr 21, 2006·Waste Management·Asa DavidssonJes la Cour Jansen
May 23, 2006·Waste Management·Trine Lund HansenThomas H Christensen
Aug 12, 2015·Waste Management·Maklawe Essonanawe EdjabouThomas Fruergaard Astrup
Apr 9, 2016·Waste Management·Anna JankAnke Bockreis
Nov 16, 2010·Bioresource Technology·Cecilia SundbergHåkan Jönsson
Jul 24, 2012·Waste Management·A BernstadJ la Cour Jansen
May 30, 2016·Waste Management·Rosalinda Campuzano, Simón González-Martínez
Jul 14, 2021·Environmental Science and Pollution Research International·Mohamed Abdulrahman Al-SametSaqr Abdulrakeeb Al-Muraisy

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