Defluorination treatment device for underground water

Abstract

The invention discloses a defluorination treatment device for underground water. The device comprises a deep-well pump house, a high fluorine-content water constant-pressure water tank, a PAC solution feeding pot, a PAM solution feeding pot, a rotational flow reaction pool, an inclined-tube sedimentation pool, a pressurizing pump, an active aluminum oxide adsorption filter, a regenerated liquid preparing tank, a regenerated liquid feeding pump, a waste liquid tank, a multi-medium filter, an ultraviolet disinfection pool, a clear water pool and a water delivery pump house which are connected with one another through pipelines. According to the device, first-stage treatment is conducted on the underground fluorine-containing water through the active aluminum oxide adsorption filter, second-stage treatment is conducted on the underground fluorine-containing water through the multi-medium filter, the advantages of being high in adsorption capacity and good in adsorption effect are achieved, deep defluorination can be achieved, and the device is not influenced by the alkalinity and the temperature of the raw water.

Description

technical field [0001] The invention relates to the technical field of special water treatment devices, in particular to a groundwater defluorination treatment device. Background technique [0002] Groundwater is an important part of water resources. With the improvement of people's living standards and the continuous development of small towns, groundwater resources have attracted people's special attention. In some areas, groundwater contains fluorine, which seriously affects people's use of groundwater. [0003] Fluorine has certain toxicity to the human body and organisms, but it is also a useful substance. Fluorine is one of the trace elements needed by the human body. It is an indispensable component of teeth and bones. A small amount of fluorine can promote the resistance of tooth enamel to bacterial acid corrosion and prevent dental caries. Therefore, water treatment plants generally add a small amount to tap water and drinking water. of fluorine. According to sta...

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Problems solved by technology

[0005] At present, common groundwater defluoridation technologies include coagulation (flocculation) precipitation method, ion exchange method, membrane filtration method, electrodialysis method, etc. It has been proved by engineering practice that these methods have more or less problems of one kind or another. , the processing effect is unsatisfactory

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