The water treatment industry is divided into the following categories

1, ultrafiltration (UF): the filtration accuracy is 0.00 1-0. 1 micron, which is one of the high and new technologies in 2 1 century. It is a membrane separation technology using pressure difference, which can filter out harmful substances such as rust, sediment, suspended matter, colloid, bacteria, macromolecular organic matter and keep some mineral elements beneficial to human body. It is the core component in the production of mineral water and mountain spring water. The recovery rate of water in the ultrafiltration process is as high as 95%, which can realize flushing and backwashing conveniently, is not easy to block, and has a relatively long service life. Ultrafiltration does not need electricity and pressure, and can be filtered only by tap water pressure, with large flow rate and low use cost, which is more suitable for comprehensive purification of domestic drinking water. Therefore, the purification of drinking water in the future will be mainly based on ultrafiltration technology, combined with other filtering materials, in order to achieve a wider treatment range and eliminate pollutants in water more comprehensively.

2. Sodium filtration (NF): the filtration accuracy is between ultrafiltration and reverse osmosis, and the desalination rate is lower than that of reverse osmosis. It is also a membrane separation technology that requires electricity and pressure, and the water recovery rate is low. In other words, nearly 30% of tap water will be wasted in the process of making water with sodium membrane. This is unacceptable to ordinary families. Generally used for industrial pure water manufacturing.

3. Reverse osmosis (RO): The filtration accuracy is about 0.000 1 micron, which is an ultra-high precision membrane separation technology developed by the United States in the early 1960s using pressure difference. It can filter out almost all impurities (including harmful and beneficial) in water and only allow water molecules to pass through. In other words, nearly 50% tap water will be wasted in the process of reverse osmosis membrane water production. This is unacceptable to ordinary families. Generally used for producing pure water, industrial ultrapure water and pharmaceutical ultrapure water. Reverse osmosis technology needs pressurized power supply, with small flow and low water utilization rate, which is not suitable for purifying domestic drinking water in large quantities.

4. Microfiltration (MF): The filtration accuracy is generally 0. 1-50 microns. Common PP filter element, activated carbon filter element, ceramic filter element, etc. All belong to the category of microfiltration. They are used for simple coarse filtration to filter large-particle impurities such as sediment and rust in water, but they cannot remove harmful substances such as bacteria in water. The filter element can't be cleaned at ordinary times. It is a disposable filter material and needs to be replaced frequently. ① PP cotton core: generally, it is only used for coarse filtration with low requirements to remove large particles such as sediment and rust in water. ② Activated carbon: It can eliminate different colors and odors in water, but it can't remove bacteria in water, and the removal effect of sediment and rust is also very poor. ③ Ceramic filter element: The minimum filtration accuracy is only 0. 1 micron, which is usually small in flow and difficult to clean.

5.EDI (ultra-pure water): the filtration accuracy is below 0.0000 1 micron, in megabytes, and it is used in chemical, pharmaceutical, electronic and other industries with high requirements for pure water, and the production conductivity is below 0.

Shanghai Jinben Machinery Manufacturing Co., Ltd. is the most professional manufacturer of water treatment and beverage production lines.