Flue gas desulfurization waste liquid treatment and activated sludge reduction treatment method

Abstract

The invention relates to a flue gas desulfurization waste liquid treatment and activated sludge reduction treatment method, belonging to the field of environmental protection. Excess activated sludge from a sewage treatment plant is introduced into a flue gas desulfurization waste liquid oxidation treatment device. Sulfite in wastewater is converted into sulfate under the action of the activated sludge, and meanwhile, the activated sludge is in the endogenous respiration state, and can acquire energy by self-consumption, thereby implementing activated sludge reduction. The invention can be implemented only by laying one pipeline and introducing a right amount of excess activated sludge from the sewage treatment plant into the flue gas desulfurization waste liquid oxidation device; and therefore, the technique is simple, and is especially suitable for enterprises in which a sewage treatment plant and a flue gas desulfurization facility are simultaneously constructed.

Description

technical field

[0001] The invention provides a flue gas desulfurization waste liquid treatment method and a sludge reduction treatment method, belonging to the technical field of environmental protection. Background technique

[0002] Sulfur dioxide is the most important gaseous pollutant affecting the quality of the air environment, and countries all over the world often use sulfur dioxide as one of the main indicators to measure the state of their air quality. At present, there are many flue gas desulfurization methods researched by various countries, more than one hundred kinds, and they are divided into two categories: dry method and wet method. Among them, the wet desulfurization technology has the characteristics of simultaneous desulfurization and dust removal, flexible maneuverability, strong applicability, low investment and low operating costs, and is considered by the environmental protection department and relevant experts and scholars as a practical technology ...