The dangers of fluoride

Release time:

2021-11-12 10:57

Fluorine alone is a life element, and a certain amount of fluorine is required to maintain human health, but excessive fluorine may cause fluorosis.

Hydrogen fluoride is very toxic. When the content of fluoride in the air exceeds 1 mg/m3, it will cause direct harm to human eyes, skin and respiratory organs;

Hydrogen fluoride also has a greater impact on plants than sulfur dioxide. Excessive hydrogen fluoride content will cause the leaves of plants to die; livestock can also cause chronic poisoning if they drink water and feed with high fluoride content.

If you drink water with a fluoride content of more than 1.5mg/L for a long time, you will have bone fluorosis.

The harm of fluoride to the human body is mainly that fluoride will damage the bones, mainly manifested as physical activity disorders. In severe fluoride poisoning, the bones will be evacuated or deformed, and spontaneous fractures are prone to occur.

In addition, fluoride can make people's teeth fragile, but also spots, damage to the skin, pain, eczema and various dermatitis.

Hydrogen fluoride has a very strong stimulating effect on the respiratory organs of the human body, which can cause rhinitis, bronchitis, and pulmonary fibrous tissue hyperplasia.

1. Chemical method

Chemical treatment methods include coagulation precipitation method and calcium salt precipitation method.

2. Adsorption method

Common adsorbents used for defluorination mainly include activated alumina, activated zeolite, activated magnesium oxide, bone char, etc

3. Ion exchange method

The ion exchange method mainly adopts ion exchange resin, sulfonated bituminous coal, sawdust, etc., and uses ion exchange to achieve the purpose of fluoride removal.

4. Electrochemical method

Electrochemical methods are mainly divided into electrodialysis method, electrocoagulation method and electroadsorption method.

Fluoride is an essential element of the human body, but the intake should be moderate, and excessive intake of fluoride is harmful to health. According to the requirements of the sanitary standards for drinking water, the fluoride in each liter of drinking water should not exceed 1 mg. If you drink water that exceeds the sanitary standards for a long time, it may cause fluorosis. Fluorosis is first reflected in children. If children drink water with high fluoride content for a long time, the probability of children suffering from dental fluorosis is very high. It is understood that the fluoride content of drinking water sources in some parts of my country is very high, and some villages often have all children suffering from dental fluorosis. If the fluoride in drinking water is higher, for example, when it contains 3-4 mg of fluoride per liter of water or more, a considerable number of adults will suffer from osteofluorosis. This is a very painful bone disease. These patients have limited mobility, and some are even incapacitated and cannot take care of themselves.

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