From toxic ash from garbage incineration, you can extract…ordinary edible salt. In Högbytorp, between Stockholm and Enköping, 17 tons of ash are received every hour from the chimneys of waste incineration plants, and today their facility was inaugurated. – What is unique is that we take a very dangerous waste and turn it into a non-hazardous waste, while at the same time we recycle resources, salts of various kinds, says Jonas Wibom, business development manager at Ragnsells. The facility in Högbytorp expects to receive fly ash containing heavy metals from many waste facilities around the country. It has a capacity to receive 134,000 tonnes per year. Residual product Ash is a residual product that you get when you burn garbage to get electricity and district heating. The process of disposing of it can be likened to a coffee maker. The ash is mixed with hot water and the mixture is run through a filter. What drips down from the filter is a saline solution which is then dried and crystallized into different types of salt. – The salts are so pure that they can replace ordinary salts on the market. It will be both anti-slip, dust control, industrial raw material and there they will directly replace regular salt, says Jonas Wibom. The heavy metals are deposited The toxic heavy metals remain in the filter. Perhaps at some point in the future they could be used, but today they are a residual product. – We can deposit it under safe conditions to detoxify the cycle. And at the same time we work to be able to recycle it in an environmentally friendly way.
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