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Digestion of Secondary Recovered Fuel Samples with PDC

Multiwave 7000 with its PDC (Pressurized Digestion Cavity) offers the opportunity to digest any of the diverse fractions of secondary recovered fuels for subsequent element analysis even within one run.

1 Introduction

Secondary Recovered Fuels (SRF) are different streams of material from the garbage recycling and are a challenging mix of materials. In many countries there are limits of heavy metals for this type of fuel, as they are emitted into the environment after the incineration.

As secondary recovered fuels consist of very different materials like polymers, wood chips, ground used tires etc., the chemical behavior of the material can vary considerably due to its origin, main components, but also fillers. This also makes the homogeneity of the sample a major issue. Moreover, as it is not predictable, which types of polymers are present in the secondary fuel samples, the method should be tolerant and be capable to handle the mentioned variability without deviation in recoveries.

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