Prague wants to obtain instructions for processing slag from waste incineration
It will be possible to use eye slag on metallic and non-metallic materials in road construction, which has been made possible by law since the beginning of the year.
The capital needs to obtain instructions for the cleaning and further use of slag, which arises from the incineration of waste in the Malešice incinerator. According to Deputy Mayor Petr Hlubuček (STAN), slag cleaned of metallic and non-metallic materials can be used in road construction, which has been possible by law since the beginning of the year. According to the deputy, the line for 250 million crowns could be installed in the incinerator within two years.
According to Hlubuček, after the waste that the incinerator incinerates, the slag remains in the weight of about a quarter of the original material. Every year, it creates 65,000 to 70,000 tons of slag in Malešice, which the town now dumps. The deputy added that the municipality wants to be inspired, for example, by Copenhagen, where the slag processing line works.
“Currently, we are completing a feasibility study, we are investing in the whole way for slag processing, we estimate approximately 250 million crowns,” said the deputy. He added that although the law has allowed slag processing since the beginning of the year, it is still awaiting the issuance of implementing decrees by the Ministry of the Environment.
According to Hlubuček, the investment in the line should return quickly, because the city would save up to 45 million crowns a year in landfills and at the same time it should earn 40 to 80 million crowns every year for metals and other raw materials separated by the slag link. “In Copenhagen, a similar line was paid for in four years,” said Hlubuček. According to him, up to 1,500 tons of non-ferrous metals could be obtained from the slag per year.
This is not one investment that the city is preparing in the area around the Malešice incinerator. The plan is to build a biogas plant that would process organic waste into compressed gas to power vehicles as well as electricity. In addition, according to Hlubučka, the municipality is also considering the construction or purchase of another period of the station outside Prague, which would be focused purely on gastro-waste from restaurants and canteens.
The Prague services that operate the incinerator are also going to install a plastic waste sorter, which offers the sale of plastics by specialized companies. According to the deputy, on the other hand, the city withdrew from the plan to set up composting in the area, because it had reservations about the city district due to possible fears and it is more appropriate to place a similar facility behind the city.
According to the deputy, Prague Services is now completing the installation of the last of the four new boilers as part of the overall modernization of the incinerator for 2.7 billion crowns. The operation is now able to process up to 400,000 tons of waste per year, the efficiency must be incinerated and incinerate into the air no longer emits virtually any emissions, the deputy concluded.
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