Homogeneous Waste

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Waste that is uniform in nature (e.g. steel cans, plastic bottles). There are 2 key aspects to classifying a waste as homogeneous:

  • a process with demonstrably consistent, well characterised, and controlled inputs/raw materials that do not vary in composition or quantity, and
  • the results from the sampling demonstrate that no statistical difference exists between samples taken over the time period (i.e. one batch is the same as any other)[1].

The Homogenisation of waste is a common process used in the production of Waste Derived Fuel preparation, to meet a specific feedstock requirement of an EfW facility[2]. Homogenous waste is preferred for EfW processes as it provides consistent outputs and reliable electricity/heat/chemical generation.

References

  1. Environment Agency, 2015. Waste Classification. Guidance on the classification and assessment of waste (1st Edition v1.1 ). Technical Guidance WM3. SEPA, Environment Agency, NIEA, Natural Resources Wales.
  2. WRAP (2012). EfW Development Guidance. Waste and Resources Action Programme.