Workshop: X-ray fluorescence for waste characterization

SESSION H16 / / 11:10 - 12:50
Workshop: X-ray fluorescence for waste characterization
Chair / Presidente: F. Part (AT)

This workshop aims to introduce handheld X-ray Fluorescence (hXRF) instruments, as a tool for rapid analyses for solid waste characterisation. hXRF is a non-destructive and portable method for determining the elemental composition of diverse solid wastes - theoretically, it works for all elements with an atomic number > 8. This method allows to measure relatively large sample sizes in-situ and consequently allows to study the heterogeneity of diverse waste streams. The elemental composition of heterogeneous waste is an important parameter to make a decision on its further treatment. It can tell if a material contains valuable components suitable for recycling or if the sample is contaminated and must undergo a specific treatment before disposal. On the contrary to hXRF, standard lab equipment is located in laboratories. Consequently, samples have to be taken on-site, transferred to a lab and need to be prepared (e.g. using microwave-assisted digestion) prior to being analysed, for instance, via ICP-OES or GC-MS. Hence, days pass before an evaluation report is available to make a final decision on how to adequately treat a certain material charge. In conclusion, in terms of quality management hXRF is a promising method to be used on-site for waste characterisation in order to quantify valuable substances (e.g.: phosphor) or to screen contaminants (e.g. mercury). Read the full appetizer on the website.

Introductory lectures:

C. Zafiu, A. Jandric, F. Part (AT)
Applicability of portable X-ray fluorescence devices for waste characterisation: challenges and opportunities

C. Zafiu (AT)
Principles, limitations and available hXRF devices

F. Part (AT)
Application study on sewage sludge ashes

A. Jandric (AT)
Application study on plastics