Circular salt for Sweden

A new mineral reclamation process by Swedish recycling group Ragn-Sells could bring more environmentally-friendly-produced road salt to Scandinavia’s highways this coming winter.
June 22, 2022
Swedish road maintenance contractor Peab will be using the circular NaCI salt in Stockholm, Uppsala and the suburbs during winter 2022/23 (image courtesy Peab)
Swedish road maintenance contractor Peab will be using the circular NaCI salt in Stockholm, Uppsala and the suburbs during winter 2022/23 (image courtesy Peab)

In May 2020 Ragn-Sells started construction of the first Ash2Salt process plant at the group’s recycling site at Högbytorp site just outside Stockholm – a US$55 million investment. Initially, the plant will be able to receive and process up to 135,000 tonnes of fly ash annually – just under half of the 300,000 tonnes of fly ash that Sweden produces each year. Right now, around half of this is sent to a discontinued limestone quarry on the Norwegian island of Langøya, near Oslo.

Fly ash, which is classified as hazardous waste, is what is left-over from scrubbing the flue gas from waste incineration carried out by local communities and cities. The Ash2Salt plant will wash the fly ash and recover its constituent salts: sodium chloride, calcium chloride and potassium chloride and sell these forward to manufacturers of various products and a range of commercial applications, including road salt manufacture.

Meanwhile, EasyMining has a contract to supply GC Reiber, based in Oslo, Norway, and one of northern Europe’s largest manufacturers and distributors of industrial-use salts, including road salt. In turn, Reiber has signed a contract with road maintenance company Peab to supply it with road salt starting by the end of this year for winter 2022/23.

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