Transforming Used Shoes into SRF: An Innovative Waste-to-Energy Solution

When it comes to discarded shoes, many people think about how to properly dispose of them, and one potential solution is to convert old shoes into solid recovered fuel (SRF). Although this may sound surprising, in theory, this approach is possible. Here are some considerations for converting old shoes into solid recovered fuel .

SRF Production
Solid Recovered Fuels (SRF)

Why can old shoes be used as solid recovered fuel ?

Discarded shoes contain a variety of materials such as rubber, leather, synthetic fibers and metal trimmings. The processing and utilization of these materials, especially the combustion potential of rubber and synthetic fibers, makes discarded shoes a potential solid recovered fuel .

Advantages of using old shoes as solid recovered fuel

  • High calorific value
  • Small particle size
  • low moisture content

Manufacturing process of using old shoes as solid recovered fuel

  1. Primary shredding (shred to 30 mm),
  2. Screening to remove fine materials (helps reduce moisture content), trommel screen recovery or air density separation to remove heavy components,
  3. Eddy current separation recovers (and removes) non-ferrous and iron,
  4. Secondary shredding to meet size specifications (depending on primary shredder specifications),
  5. Sieve for later use.

SRF Production Line
SRF Production Line

Applications and potential issues

The converted solid recovered fuel can be used in heating, power generation and other fields. However, when going through this process, you need to be aware of the chemicals the shoes may contain, as well as the emissions they may produce during combustion. It is important to ensure that this process meets environmental standards.

While converting old shoes into solid recovered fuel is conceptually feasible, in practice, the composition of the material, the complexity of the disposal process, and potential environmental and health risks need to be considered. This requires more research and in-depth evaluation to ensure safety, environmental protection and sustainability. It is recommended that you contact a professional solid recovered fuel technology solution provider for professional support!

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