(determination of physico-chemical properties)

For the design and the optimisation of waste treatment and disposal facilities it is essential to possess knowledge about the physico-chemical waste properties. This is directed at procedural processes as well as at the achievement of defined quality properties of products. While the physico-chemical analyses are subject to standardised procedures, it still remains a challenge to produce representative samples out of the heterogeneous waste stream and to scale down the sample mass to laboratory scale.

To derive samples in a laboratory scale, ARGUS applies a multistage procedure. In a first step the waste samples are manually sorted according to categories, e.g. glass, paper, plastics etc. The single waste categories are then comminuted separately. After the comminution the categories are more homogeneous. On the next stage subsamples are taken from the categories and grinded to a particle size <2mm. On the last stage a composite sample is produced out of the grinded categories, considering to the share of each category in the original sample. This composite sample is now ready for the analysis in a laboratory. For the conduction of physico-chemical analyses we are co-operating with a certified laboratory.

Selected references
1.   physico-chemical waste analyses Berlin 2002/03
2.   physico-chemical waste analyses Potsdam 2000
3.   Determination of physico-chemical parameters for residues from a light-packaging
      sorting plant