Abstract

The possibility of using modern high-tech flotation equipment at RUSAL Bratsk PJSCis considered, which allows to significantly reduce discharges of extremely hazardous waste of fluorine, sodium, and aluminum to the sludge fields, and to initiate recycling of waste from the sludge fields. The results of operation are presented for a coal foam column flotation system at PJSC RUSAL Bratsk. An innovative technique has been developed allowing to recycle lining waste from aluminum electrolysis pots. The recycling of the waste lining coming from aluminum electrolysis pots is a completely closed waste-free cycle, which provides alumina and cryolite — products that can be used in the aluminum electrolysis, as well as allows using all the secondary solid waste in the satellite cement production.

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