Types and Differentiation of Direct Drinking Water Equipment on Campus

 

There are many types of water purification equipment that can be classified based on different principles and application scenarios. The following are common types of water purification equipment and their distinctions:

 

 

 

1. Reverse osmosis equipment and ultrafiltration equipment

 

 

 

Reverse osmosis equipment and ultrafiltration equipment both belong to membrane separation technology, and their core components are semi permeable membranes, but their separation effects and application scenarios are different.

 

 

 

Reverse osmosis equipment can remove various pollutants such as ions, organic matter, bacteria, viruses, etc. from water, with a water purification effect of over 99%. It is currently one of the most efficient water purification technologies and is commonly used in production of drinking water and industrial water. Ultrafiltration equipment, on the other hand, has a larger pore size, typically between 0.001 and 0.1 micrometers, and can remove pollutants such as macromolecular organic matter, bacteria, and viruses from water. However, the removal effect of ions and low molecular organic matter from water is not ideal, and it is commonly used in industrial and municipal wastewater treatment, seawater desalination, and other fields.

 

 

 

2. Activated carbon adsorption equipment and nanofiltration equipment

 

 

 

Both activated carbon adsorption equipment and nanofiltration equipment belong to physical adsorption technology, but their adsorption capacity and application scenarios are different.

 

 

 

Activated carbon adsorption equipment usually uses activated carbon particles or carbon fibers as the adsorption medium to remove pollutants such as color, odor, taste, and organic matter from water through the physical adsorption force between the adsorbent and the pollutant surface. It has the characteristics of strong selectivity, good reversibility, and simple operation, and is commonly used in household water purifiers and drinking water treatment equipment.

 

 

 

The pore diameter of nanofiltration equipment is generally 0.001~0.01 μ m, between ultrafiltration and reverse osmosis, and it can remove bacteria, viruses, colloids, macromolecular organics and other pollutants in water, but the removal effect of trace inorganic compound and low molecular organics in water is not ideal, and it is often used for water treatment in electronic, pharmaceutical, food, chemical and other industrial fields.

 

 

 

3. Ion exchange equipment and electrolysis equipment

 

 

 

Both ion exchange equipment and electrolysis equipment are designed for the removal of ions from water, but their principles and effects are different.

 

 

 

Ion exchange equipment is the process of removing and converting ions from water using ion exchange resins. Resin is usually a porous polymer material with strong chemical reactivity, which can selectively adsorb or release ions in water, achieving the removal and softening of sodium, magnesium, calcium, iron, and manganese plasma in water. Ion exchange equipment is commonly used in household and commercial water purification equipment, which can effectively reduce water hardness, improve taste and cleanliness.

 

 

 

Electrolytic equipment is the process of removing and converting ions from water through electrolysis. Electrolytic equipment decomposes water into acidic and alkaline water, among which alkaline water has strong reducing and cleaning capabilities, and can remove pollutants such as bacteria, viruses, and trace organic matter from the water. Electrolytic equipment is commonly used in the preparation of high-purity water, pharmaceutical water, and electroplating water.

 

 

 

4. UV disinfection equipment and ozone disinfection equipment

 

 

 

UV disinfection equipment and ozone disinfection equipment are both disinfection technologies targeting bacteria and viruses in water, but their principles and effects are also different.

 

 

 

Ultraviolet disinfection equipment uses the wavelength and intensity of ultraviolet radiation to kill microorganisms in water, with a sterilization rate of over 99.9% and no secondary pollution to water quality. It is commonly used in household and commercial water purification equipment.

 

 

 

Ozone disinfection equipment uses ozone molecules to oxidize microorganisms in water, causing them to destroy cell membrane structure and metabolic function, achieving a killing effect. Ozone disinfection equipment also has the function of oxidizing organic matter in water, which can remove odors and chromaticity issues in water. Ozone disinfection equipment is commonly used in water treatment, drinking water, swimming pools, and other fields.

 

 

 

In summary, different water purification devices have their own advantages, disadvantages, and applicable scenarios. Consumers need to choose appropriate water purification devices for purification treatment based on their actual needs and water quality conditions when choosing water purification devices.