Mine water defluorination and boiler room desulfurization comprehensive treatment method

Abstract

The invention discloses a mine water defluorination and boiler room desulfurization comprehensive treatment method, relates to the technical field of thermal power generation water treatment and environmental protection, and solves the problem of how to improve the utilization rate of defluorination and desulfurization chemicals of a thermal power station, including mine water defluorination, defluorination filter material regeneration and waste liquid defluorination, desulfurization and reutilization. The method comprises the following steps of: emptying the fluorine-containing NAOH concentrated liquor in the defluorination filter tank and the regenerated liquid tank into a waste liquid tank; starting a boiler room liquid inlet pump to pump the fluorine-containing NAOH concentrated liquidin the waste liquid pool into a boiler room ash settling pool for a boiler room desulfurization reaction; using industrial-grade CA (OH) 2 used by a boiler room ash settling pond to react with the fluorine-containing NAOH concentrated solution, and removingfluorine ions. A fluorine removal system and a desulfurization system are integrated, NAOH concentrated liquor is utilized, caustic soda flakes used in a boiler room are saved, fluorine is removed through industrial-grade CA (OH) 2, the high cost of food-grade CA (OH) 2 and the utilization rate of fluorine removal and desulfurization drugsare saved, and obvious economic benefits are obtained.

Description

technical field [0001] The invention relates to the technical field of thermal power generation water treatment and environmental protection, in particular to a comprehensive treatment method for mine water defluorination and boiler room desulfurization. Background technique [0002] The ecological environment in Northwest my country has always been quite fragile, and water resources are seriously scarce. The development and utilization of groundwater has become an important way for people to use water for living. The groundwater in western my country generally has high fluorine content, which exceeds the sanitary standard for drinking water stipulated by the state. Long-term drinking of high-fluorine water may cause stained teeth and joint pain in mild cases, and affect bone development in severe cases, resulting in loss of labor force. Defluoridation of groundwater is a necessary link to ensure the sanitation of drinking water. [0003] One of the more advanced technologie...

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Problems solved by technology

[0007] Although the above-mentioned Chinese invention patent application can achieve continuous use, good fluoride removal effect, and does not require regeneration, it does not solve the problem that the defluoridation and desulfurization chemicals caused by the independent operation of the mine water defluorination system and the boiler room desulfurization system are not reused. waste problem

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