Fluorine removal device and high-fluorine water fluorine removal system

Abstract

The invention relates to a fluorine removal device and a high-fluorine water fluorine removal system. The fluorine removal device comprises a cylinder, wherein the upper part of the cylinder is provided with a water inlet, and the lower part is provided with a water outlet; the inside of the cylinder is sequentially provided with an activated carbon and absorbent cotton layer, a fluorine removal filler layer and a support layer from top to bottom; the fluorine removal filler layer is 500-100mm thick, and is formed by filling a modified zeolite filter material; the particle size is 0.5-2.5mm; and the nonuniformity coefficient K of the filter material is less than or equal to 2. Two or more than two fluorine removal devices and a filter material activation and regeneration unit constitute the high-fluorine water fluorine removal system. The average fluorine removal rate of the device and system is up to more than 99%; the invention has the advantages of low manufacturing cost, low operating cost, and low cost for fluorine removal and water production; the equipment is simple to operate and convenient to install and use, and has small occupied area; and the high-fluorine water fluorine removal system can select one-stage or multi-stage treatment according to the local fluorine content, thereby implementing modular operation on the fluorine removal system and ensuring that the quality of water subjected to fluorine removal achieves or exceeds the drinking water standard.

Description

technical field [0001] The invention relates to the technical field of water purification treatment, in particular to a fluoride removal device and a high-fluorine water removal system. Background technique [0002] Fluorine is an essential trace element for the human body. It is an essential element for the formation of hard bones and teeth. It can prevent dental caries, maintain the normal calcium and phosphorus metabolism of the human body, and improve the anti-aging ability of the organism. However, excessive intake can cause bone deformities, eventually make people lose their ability to work, and can also cause various allergic reactions, hereditary diseases, cancer, and neonatal defects, seriously affecting people's health and the development of the national economy. The human body needs about 2.4mg of fluorine intake per day. my country stipulates that the concentration of fluorine in drinking water should not exceed 1.0 mg / L. The distribution of high-fluorine water...

AI Technical Summary

Problems solved by technology

At present, there are still 77 million people in my country who drink water with excessive fluorine content, mainly in rural areas, and about 5 million of them drink water with fluorine content exceeding 5.0mg / L, which seriously affects human health and safety.

A lot of research has been done on the treatment technology of high-fluorine drinking water at home and abroad, and the developed methods for removing fluorine mainly include: adsorption method, precipitation method, electrocoagulation method, electrodialysis method, reverse osmosis method, etc., but the existing methods The fluoride removal method has problems of high treatment cost, poor applicability, and difficulty in stably meeting the standard of fluorine content

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