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VPD technology · Sorting · Resource recovery

Technology: from waste to resources

GMS treats solid waste in two process groups: Sorting to separate material streams, and VPD technology to convert suitable feedstock streams into new output products. The plant is in operation; the six output streams remain a planned direction.

One stream in, two processing branches, six resource streams

Sorting

Separates suitable material streams for further processing or value recovery.

See the sorting stages

VPD technology

Aims to convert suitable feedstock streams into new output products.

See the VPD stages

Six streams, planned direction

The plant is in operation; the output streams remain a planned direction, not products currently supplied.

See output products
Branch 1

Sorting: separating the right streams first

Sorting separates suitable material streams for further processing or value recovery.

  1. Feeding

    Even feeding onto the line.

  2. Bag opening

    Bag opening to separate contents.

  3. Rotary screening and stream collection

    Rotary screening and collection of each stream.

    • Plastic film
    • Organic humus
    • RDF
3D rendering of the sorting line: conveyors, screens and stream separatorsArtist's impression
The GMS sorting line.
Branch 2

VPD technology: converting into new output streams

VPD is a thermal decomposition technology that aims to convert suitable feedstock streams into three output streams.

  1. Intake and storage

    Incoming feedstock is gathered in a covered store before entering the line.

  2. Bag opening and loosening

    Bags are opened and the mass is loosened so free water can drain off.

  3. Dewatering press

    A press removes more of the remaining water.

  4. Drying

    The material is dried in a recirculating dryer to suit the thermal stage.

  5. Thermal decomposition

    In a closed chamber the material breaks down under heat; the remaining solids are collected separately.

    • Activated carbon

  6. Gas cleaning and separation

    The gas mixture is cooled, cleared of dust and split into separate streams.

    • Recycled oil
    • Separated water
    • Syngas

  7. Gas drying and storage

    Syngas is dried and sent to the product storage tank.

  8. Return loop

    Part of the syngas is fed back to heat the decomposition chamber.

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