FGD Wastewater Treatment

The waste waters produced during the flue-gas desulfurisation process have to be treated before being discharged. The main requirements are: Gypsum desaturation, Reduction of solids, Removal of heavy metals.

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FGD wastewater

The treatment procedures for flocculation, precipitation and sedimentation will be designed as two-staged processes. If requested by our clients a continuous sand filtration will be added.

Depending on the location of the water treatment plant and the discharge requirements to be fulfilled there further treatment steps can be necessary:

Further reduction of solids (filtration)
Further reduction of specific substances (nitrate)
Evaporation (ZLD = Zero Liquid Discharge processes) for reliable compliance with water drain regulations

FGD Wastewater Treatment

The treatment procedures for flocculation, precipi...