Pure water equipment is a kind of equipment used to prepare high-purity water, and the principle of producing pure water is mainly to remove impurities in the water through physical and chemical methods to achieve the purpose of purification. The following will introduce in detail the principle of pure water production of pure water equipment.
1. Pretreatment.
In the preparation process of pure water equipment, pretreatment is the first step. The purpose of pretreatment is to remove large particles of impurities, suspended solids, colloids and other substances in the water to ensure the normal operation of subsequent treatment. Common pretreatment methods include sand filtration, activated carbon filtration, etc.
2. Reverse osmosis.
Reverse osmosis is one of the main treatment technologies for pure water equipment. A reverse osmosis membrane is a semi-permeable membrane with high selectivity that allows only water molecules to pass through and prevents other solutes from passing through. In the reverse osmosis process, when water passes through the reverse osmosis membrane, due to the action of pressure, the water molecules will flow from the high pressure side through the membrane to the low pressure side, while other solutes are trapped on the high pressure side, thus achieving purification.
3. Post-processing.
After reverse osmosis treatment, the water quality has been greatly improved, but there may still be some trace impurities. Therefore, post-treatment is required to further improve water quality. Common post-processing methods include electrodeionization (EDI), ultraviolet disinfection, and more.
Fourth, disinfection. Disinfection is an important part of pure water equipment, the purpose is to kill bacteria, viruses and other microorganisms in the water to ensure the safety of water. Common disinfection methods include ozone disinfection, ultraviolet disinfection, etc.
In short, the principle of pure water production of pure water equipment is to remove impurities in water through physical and chemical methods to achieve the purpose of purification. In the preparation process, after pretreatment, reverse osmosis, post-treatment and disinfection and other steps, the final high-purity water is obtained. This kind of pure water equipment is widely used in electronics, medicine, chemical industry and other fields, providing high-quality water sources for all walks of life.