Drinking water defluorination treatment system

Abstract

The invention provides a drinking water defluorination treatment system. The system comprises a defluorination agent adding device, a pipeline mixing device, a membrane filtering device and a central control device; the defluorination agent adding device is used for adding a defluorination agent into a raw water inlet pipeline; the water inlet end of the pipeline mixing device is connected with a raw water outlet; the membrane filtering device is used for carrying out turbidity treatment on the water body flowing out of the pipeline mixing device; and the central control device is used for controlling the operation of the whole system, monitoring the fluorine content of the produced water in the produced water side of the membrane filtering device, and regulating and controlling the dosage of the defluorination agent of the defluorination agent adding device according to the fluorine content. The system is easy to operate, high in water production rate, low in operation cost, high in water production qualification rate and convenient to use, and meanwhile, parameters of a medicament metering pump can be adjusted according to the local fluorine content, the agent adding amount can be changed, and it is ensured that the water quality after fluorine removal reaches the national drinking water hygienic standard.

Description

technical field [0001] The invention relates to the technical field of drinking water treatment, and mainly relates to a drinking water defluorination treatment system. Background technique [0002] my country's "Drinking Water Sanitation Standard" GB5749-2006 stipulates that the concentration of fluoride in drinking water should not exceed 1.0 mg / L. It is generally believed that the appropriate fluorine content in drinking water should be 0.5-1.0 mg / L. Nearly 100 million people in my country live in areas with high fluoride content, and there are tens of millions of victims of fluorosis. The intake of fluoride mainly comes from drinking water. At present, in drinking water sources in many areas at home and abroad, the fluoride content exceeds the health standard, and the highest even exceeds the health standard by more than ten times. The defluoridation of drinking water is closely related to the health of the people. Therefore, there are many problems in the defluoridation...

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Problems solved by technology

[0003] However, the existing mainstream defluorination equipment mainly includes membrane method and adsorption method. Membrane defluorination equipment generally has the problems of large power consumption, low water production rate, and serious waste of water resources. Adsorption defluorination equipment has regeneration The cycle is getting shorter and shorter, the regeneration operation is frequent, and the problem of consuming a lot of labor costs. At the same time, in the saturation regeneration stage of the defluoridation filter material, the effluent will be suspended or the fluorine of the effluent will be unqualified, that is, the qualified rate of water quality cannot reach 100%. It will also produce high pH value and high concentration of fluorine-containing wastewater. The wastewater treatment operation is more complicated, and it is difficult to realize automatic operation or remote control, resulting in higher overall operating costs.

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