Municipal waste incineration fly ashes: from a multi-element approach to market potential evaluation.

ABSTRACT:

Background

Fly ashes from municipal solid waste incineration contain significant amounts of (technology critical) elements. Processes to recover Cu or Zn are already in practice, but it still remains difficult to evaluate the full secondary resource potential of the ashes. One reason is the absence of a worldwide comparable analytical basis for detailed market analyses. To encounter this, (i) an advice on how to analyse 65 elements after microwave-assisted digestion by ICP-OES and ICP-MS is delivered, (ii) the heterogeneity (hours to annual cycle) is evaluated for a incineration plant, (iii) leaching efficiency with three different eluents and (iv) the market potential of the elements as commodities are evaluated.

Results and conclusions

Aqua regia digestion was found to be

SUBMITTER: Fabricius AL 

PROVIDER: S-EPMC7301355 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature