The role of residual chlorine in water treatment

Residual chlorine plays a vital role in the water treatment process. Its main functions include disinfection, prevention of secondary pollution, and maintaining stable water quality. The following are some specific roles of residual chlorine in water treatment:

 

Sterilization and disinfection

As a strong oxidant, residual chlorine can effectively kill bacteria, viruses and other microorganisms in water, thereby preventing water pollution and the spread of waterborne diseases. By detecting the residual chlorine concentration, it can be ensured that the disinfection effect of water meets the hygienic standards and ensures the safety of the water supply system.

 

Preventing secondary pollution

During the process of water being transported from the water plant to the user, it may be secondary polluted by pipelines and facilities along the way. The presence of residual chlorine can continuously sterilize and prevent the water from being contaminated again during the transportation process, thereby ensuring the drinking water safety of the end user.

 

Maintaining stable water quality

Residual chlorine can also adjust the pH value in water and maintain the stability of water quality. In swimming pool water treatment, the concentration of residual chlorine needs to be strictly controlled to avoid irritation to the skin and eyes of swimmers, while ensuring the cleanliness and safety of water quality.

 

Regulatory compliance

In many areas, there are regulatory requirements for residual chlorine concentration for public water supply systems and industrial water. Residual chlorine detectors can help water treatment plants and related units ensure that water quality meets regulatory standards, comply with relevant regulations, and prevent health and environmental risks caused by water quality problems.

 

Precautions

Although residual chlorine plays an important role in water treatment, its concentration must be strictly controlled. Excessive residual chlorine concentrations can cause harm to human health, such as irritation to the skin and eyes, and even allergic reactions. Therefore, when using residual chlorine, it is necessary to strictly control the dosage, accurately monitor the water quality, and regularly maintain the water treatment equipment to ensure the safety of water quality and the health of swimmers.

 

In summary, residual chlorine plays an irreplaceable role in water treatment, but its use must be cautious to ensure that it achieves the purpose of disinfection and pollution prevention without causing harm to human health.

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