Method for improved and low-cost wet deposition of mercury from flue gases

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Is a particularly economical method for improved wet deposition of mercury from Of flue gases, wherein the multi-stage combustor and/or the flue gas, if necessary, in a the furnace a bromine-containing compound and/or bromine and/or following plant part. a mixture of different bromide-based compounds is supplied, wherein the temperature is at least 500 °C upon contact of the bromine-containing compound with the flue gas, the combustion in the presence of a sulfur-containing compound, with the addition of sulfur and/or a sulfur-containing compound and/or a mixture of different sulfur-containing compounds is carried out and then the flue gas a, optionally multistage, wet laundry is subjected to, characterized in that the washing liquid in at least one of the washing stages an alkali or alkali and/or or a mixture of several alkaline-earth polysulfidealkaline-earth polysulfides is supplied.