At the PST plant in Tiel we reclaim high-quality raw materials from shredder waste. There are four main raw-material streams: minerals, fibres, plastic and metal.
These raw materials are used in a range of markets to make new products. For instance, minerals are used to make street-name signs. Plastic is re-used in new vehicles, and as granulate for artificial turf. As with minerals, fibres are used in the construction industry. Any number of other uses are conceivable.
Interested in the use of our raw materials in your product? Please do not hesitate to contact us.
The mineral fraction consists mainly of sand and glass particles, which are sieved out of the shredder waste. This yields around 6,100t of usable material each year. The minerals are used in a number of different ways. Basalt-effect stone can be made using a high-quality smelting technology. The minerals are also used in roadway construction.
The PST plant separates materials including iron, stainless steel, copper and aluminium. This yields approximately 1,400t of usable material each year. Among other things the reclaimed iron is processed into low-grade steel that is suitable for reinforcing concrete structures. Materials such as stainless steel, aluminium and copper are further purified and processed at a third-party plant.
The PST plant produces between around 7,000 and 8,000t per year of fibrous material from such things as seats, upholstery, seat belts and dashboard finishes. This fraction is put to many uses, for example in construction and, in part, as a fuel in an energy recovery system.
An end-of-life vehicle has more than twenty sorts of plastic. Three streams remain after the separating process in the PST plant, each one with a different composition and density.
The light plastic fraction is largely made up of polypropylene, polyethylene and styrene compounds. These are materials that are suited to recycling. Around 3,000 – 4,000t of this material is returned to the chain as granulate per year. For instance for use in the production of new vehicles.
The middle fraction amounts to around 2,000t per year and is used as a reducing agent in blast furnaces.
The heavy plastic fraction accounts for between 5,000 and 6,000t per year and still contains a lot of copper. This is bought and re-used by a third party. This fraction also contains a lot of PVC, a difficult material to process due to the chloride it contains.
ARN, together with NPSP Composieten, has developed a new composite material with the brand name BlueRoots. To do this, minerals from the PST plant are mixed with a bio-based synthetic resin. This makes a rigid, environmentally-friendly material comparable with aluminium. It can be poured and forced into various shapes and has many potential uses. BlueRoots is already being used in street-name signs and street furniture.
Do you want more information on BlueRoots? Visit www.blueroots.nl.