Stadler sees an increase in sorting demand
Stadler Anlagenbau GmbH, a Germany-based sorting equipment supplier in Altshausen, says the increased recycling rate for construction and demolition (C&D) provides the company with the opportunity to work with customers and society at large to achieve circular economy objectives.
Stadler calls the construction industry “by far the largest generator of waste in the European Union – around 870 million tonnes in 2017 – which accounts for 30-40% of total waste generation in industrialized countries”.
Although recycling rates in EU countries may vary, says Stadler, “in any case, most recovered material is recycled – mainly used for backfill in road construction, building foundations or landfill – or sent to landfill”.
Commenting on the materials upgrade, Dr. Juan Carlos Hernández Parrodi, Senior Project Manager at Stadler, says: “This represents huge untapped potential. Typically, [C&D material] is composed of concrete, wood, metals, glass, masonry rubble, stones, earth, sand, gypsum, plasterboard, asphalt, plastics, insulation, paper, cardboard and reclaimed construction elements. There are very few things that cannot be recycled – the recycling potential of this [material] may be over 90%. »
He continues: “Some previous studies have pointed out that, if treated appropriately to remove moisture and impurities, reclaimed aggregates may even have advantages over raw materials in some cases, such as resistance to higher compression and a wider range of applications in the construction industry. ”
According to Stadler, awareness of C&D recycling among governments, environmental organizations, educational institutions and the general public is growing. “This development is accelerating,” says Hernández Parrodi. “Legislation regulating the quantities of [C&D material] that can be landfilled is increasingly restrictive and aims to promote the recovery of secondary materials and recycling. At the same time, new regulations are setting high standards for recycled building materials, encouraging a shift from downcycling to recycling and upcycling. All of these factors lead to rapid growth in the demand for technological innovation.
Stadler says he is able to bring his experience in designing advanced municipal solid waste (MSW) sorting plants to the construction industry, developing tailor-made solutions to meet individual situations: taking into account all the specific factors, together with our know-how, allows us to provide effective, efficient and high-quality sorting facilities,” says Hernández Parrodi.
The company claims that its systems are designed to process large quantities of mixtures of various materials under very difficult conditions, such as the presence of fines and moisture, as well as heavy and bulky objects. Stadler claims to have successfully applied its sorting know-how in a number of C&D projects – the most recent for Sogetri in Switzerland and Remeo Oy in Finland.
This latest facility which combines a mixed C&D sorting plant capable of processing 30 tons per hour and a commercial and industrial materials plant with a capacity of 15 tons per hour. It also incorporates artificial intelligence (AI) technology from the Finnish company ZenRobotics. Mauri Lielahti of Remeo said he was impressed with Stadler’s tailored approach to the project, commenting: “We appreciated Stadler’s ability to innovate, his willingness to seek new solutions and his willingness to listen to customer needs.
Stadler sorting centers can produce a range of finished products, including sand, gravel, metal, wood and others. Reclaimed concrete can be used to produce recycled concrete. “This means that with recovery, not only is it possible to close the loop of material life cycles and move towards a circular economy, but it also enables upcycling, thus expanding applications and increasing added value. recovered materials”, concludes Hernández Parrodi.