Ultra-filtration system Applications

What is an ultra-filtration membrane system:

Ultra-filtration membrane is one of the first polymer membranes developed. It is a micro-porous filtration membrane with a rated pore size ranging from 0.001 to 0.02 microns.

In the field of water treatment, the ultra-filtration membrane system has a high efficiency in filtering impurities, and its filtration accuracy can reach 99.99%, which can effectively remove most of the harmful substances in the water; and due to the strong chemical stability of the ultra-filtration membrane material, it is resistant to acid and alkali corrosion and high temperature, so it can be sterilized at high temperature, thus it has a wide range of applicability.

Ultra-filtration system applications:

1. Urban drinking water purification: Urban drinking water mainly comes from groundwater and surface water. The pollution mechanisms of the two water sources are different, but the pollutants are mainly asexual organisms, bacteria, fungi, viruses, suspended solids, etc. The traditional drinking water purification methods can achieve the inactivation and purification of fungi and microorganisms, and the purification of micron-level suspended particles, while ultra-filtration system can also achieve effective removal of nano-level particles on this basis, so that the product water quality can be better

2. Seawater desalination: The ultra-filtration membrane system began to be used for pretreatment before reverse osmosis. Its excellent separation performance and physical and chemical performance have further improved the efficiency of seawater desalination, while greatly reducing energy consumption

3. Treatment of electroplating waste water: The amount of waste water produced by the electric industry is huge, and it contains a lot of heavy metals such as hexavalent chromium, copper, nickel, etc., which is extremely harmful and extremely low in biodegradability. In actual work, iron oxidation method electrolysis is often used, but iron oxidation method will A large amount of sludge is produced, and this sludge needs further treatment: Although the electrolysis method can treat electric waste water well, it has a high operating cost and is not suitable for large-scale promotion. The combined use of ultra-filtration system and reverse osmosis system is considered to be an effective method for electrical waste water treatment. It uses two membrane technologies to remove most of the heavy metals, organic carbon and nitrate in electroplating waste water. Besides, the use of the ultra-filtration membrane also reduces the pollution of the reverse osmosis membrane and to extend the service life of system..

4. Food industry waste water recycling: In addition to improving the quality of the effluent, the ultra-filtration membrane technology can also concentrate and recover a large amount of useful solid substances. The most typical application is in the food industry. The waste water produced by the food industry contains a lot of fat, protein, starch, yeast, etc. If these substances are discharged into the external environment, not only will it cause environmental pollution, but also a lot of waste. Therefore, the ultra-filtration mold technology is used to remove the waste water. The useful components in the water are intercepted, and the BOD and COD in the water are also separated from the water. The separated peripheral substances are extracted and recovered, which can bring greater economic benefits to the enterprise.

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