Process for the biological treatment of waste water from a flue gas desulphurization plant

摘要

1. Process for the biological treatment of waste water from a flue gas desulphurisation plant, the waste water containing, per litre, 10 to 100 g. salts, 0.1 to 10 g. organic compounds, and 100 to 2000 ppm water-soluble nitrogen-oxygen compounds, characterised in that the waste water is conducted through a bed of granular carrier material, consisting predominantly of carbon, which bed is charged with activated sludge bacteria and from which bed air is excluded.