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[Chemical Knowledge]：How to remove chloride ions

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Chloride ion is a common ion, which is widely used in tap water, food processing, industrial manufacturing and other fields. However, in some cases, chloride ions can have adverse effects on human health, so it is necessary to remove chloride ions. This paper will discuss the source and harm of chloride ion, and the method of removing chloride ion.

sources and hazard

chloride ions widely exist in nature and human activities. In nature, chloride ion exists in seawater, groundwater and surface water, and is a common inorganic salt ion. In human activities, chloride ion is widely used in drinking water disinfection, food processing, pulp manufacturing, textile printing and dyeing, chemical manufacturing and other fields.

Although the wide application of chloride ions has brought many benefits to human beings, excessive chloride ions will also have adverse effects on human health. Common hazards include:

1, hinder the body's absorption of iodine, affecting thyroid function.

2, causing allergic reactions and skin itching.

3, the lungs and respiratory system have a stimulating effect.

4, may be related to the occurrence of cancer.

Therefore, the removal of chloride ions is very important for the protection of human health.

of

to remove chloride ions are described below several common methods of removing chloride ions:

1, activated carbon adsorption method

activated carbon adsorption method is a physical method of removing chloride ions. The activated carbon material has a large surface area and a small pore structure, which can adsorb the chloride ions in the solution in the pores, thereby removing the chloride ions. The method is simple, low cost, but there is a certain degree of saturation of chloride ion adsorption, the need for regular replacement of activated carbon materials.

2, reverse osmosis technology

reverse osmosis technology is a comprehensive physical and chemical action of efficient membrane separation technology, suitable for the removal of chloride ions, nitrate, drugs, herbicides and other different sizes of ions, molecules. The technology has the advantages of high removal rate, low energy consumption and no need to add chemical substances. It is widely used in various fields, such as drinking water treatment, seawater desalination, industrial wastewater treatment and so on.

3. Anion Exchange Resin

Anion exchange resin is a method of chemically removing chloride ions. The method uses the anion exchange resin with the characteristic of specific adsorption of chloride ions, and the chloride ions in the solution are exchanged with other anions on the surface of the resin to remove the chloride ions. This method is effective in removing chloride ions, but it is necessary to consider the selection and regeneration of the resin.

To sum up, the removal of chloride ions is an important measure to protect human health. Through reasonable selection of removal methods, efficient, economical and environmentally friendly treatment effects can be achieved, contributing to society and human health.