Study on Biological Treatment of Limestone-gypsum Wet Desulfurization Wastewater

摘要

The limestone-gypsum wet desulfurization wastewater was studied in this paper, and the biological treatment method was proposed for the problem that the water quality of the desulfurization wastewater after the physicochemical treatment was still not up to standard. In this experiment, the domestic sewage of a power plant was added into the desulfurization wastewater to make the desulfurization wastewater biodegradable, then SBR biological treatment was carried out to make the effluent water quality met the relevant requirements of Sewage Discharge Standard (GB8978-1998) and Water Quality Control Index of Limestone -gypsum Wet Desulfurization Wastewater of Thermal Power Plant (DL/T 997-2006).