White Paper
Wastewater Treatment For FGD Purge Streams
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•White Paper: Wastewater Treatment For FGD Purge Streams
By Siemens Water Technologies
In developing a wet limestone flue gas desulfurization (FGD) retrofit program, utilities must also develop a strategy for the associated wastewater treatment system (WWTS) to treat the scrubber chloride purge stream. This purge stream is required to control chloride concentrations and solids fines build-up in the scrubber.
In this paper, characteristics of FGD purge streams will be identified and items affecting those characteristics will be discussed, including the coal source, limestone quality, scrubber design, and makeup water quality. Key elements affecting the design and sizing of FGD wastewater treatment systems will also be discussed. A number of case studies will be presented to illustrate different wastewater treatment systems that resulted from the combination of the FGD purge characteristics and the final treated effluent requirements. Operational procedures and system flexibility for future changes will be covered. Lessons learned will be presented on systems currently in operation, as well as some under construction or design.
Click Here To Download:•White Paper: Wastewater Treatment For FGD Purge Streams
