Power Plant Chooses Siemens' FGD Scrubber

One of the largest power producers in the United States has selected Siemens Water Technologies to provide a system to treat wastewater from a Flue Gas Desulfurization (FGD) scrubber being constructed at an eastern power plant, according to a recent press release.

Installation of the wet scrubber will reduce emissions of mercury and sulfur dioxide. The wastewater treatment system will remove suspended solids and heavy metals from the scrubber waste stream so the water can be safely discharged. Siemens' scope of supply on the new physical/ chemical wastewater treatment system for this project includes system design, equipment supply, project management, system start-up, staff training, and system commissioning. When completed in 2012, the system will be the company's fourteenth FGD scrubber wastewater treatment system installed at a U.S. power plant.

Scrubbers are used in numerous U.S. power plants to meet emissions standards set by the U.S. Environmental Protection Agency and/or state agencies. Flue gas systems frequently use limestone-forced-oxidation scrubbers to convert sulfur dioxide in the flue gas to gypsum, which can be recycled and sold for wallboard manufacturing, cement additive, or agricultural applications, thus turning a waste stream into a usable resource.