ultrafiltration membrane What is the pass rate accuracy of? When selecting ultrafiltration membrane products, many people first consider the filtration accuracy of ultrafiltration membrane. Therefore, the filtration accuracy of ultrafiltration membrane is one of the main standards to consider the quality of ultrafiltration membrane products. If you want to master this problem, you should first understand what is ultrafiltration.

What is ultrafiltration (UF)

Ultrafiltration (UF) is one of the membrane separation technologies driven by the burden. It uses the blocking ability of porous structural membranes to separate the number of different constituent particles in the saturated solution by means of physical interception, so as to achieve the goal of saturated solution purification. Ultrafiltration (UF) membrane separation technology plays an important role in industrial production, health care and industrial wastewater treatment.

Precision definition of ultrafiltration membrane

So, what is the precision of ultrafiltration membrane? According to the national standard, ultrafiltration (UF) membrane separation technology can intercept 0.001-0.1 μ M Middle macromolecular substances and residues. Therefore, there is a great difference between the filtration accuracy of different materials and different brands of ultrafiltration membranes. The ultrafiltration membrane will allow small molecules of hydrochemicals and solubility of solid (carbonate), and at the same time will retain colloidal solutions, proteins, microbial strains and biomacromolecules of organic compounds. Generally, we consider the ability to intercept the molecular structure by laser cutting the relative molecular weight, Generally, the relative molecular weight of laser cutting of ultrafiltration membrane is in the middle of 1000Da-500000Da, and the operating pressure of ultrafiltration membrane is generally 0.3-5bar. Therefore, the precision of the same ultrafiltration membrane will be different under different standards. The filtration accuracy of ultrafiltration membrane is one of the main standards for considering ultrafiltration membrane products. In addition, there are also large seepage working pressure, operating temperature range, etc., which are also the main reference index values for ultrafiltration membrane quality. Therefore, it is particularly critical to select a suitable ultrafiltration membrane.

Reference for selection of ultrafiltration membrane

1. There are four key categories of ultrafiltration membrane structure: tubular ultrafiltration membrane, overhead chemical fiber ultrafiltration membrane, roll ultrafiltration membrane and platform ultrafiltration membrane. Ultrafiltration membranes with different structures have different advantages and disadvantages, and their application ranges are also different.

2. Raw materials of ultrafiltration membrane: There are many raw materials that can be used as ultrafiltration membrane. The specific raw materials available are polysulfone (PS), polyethersulfone (PES), polythiophene (PAN), polyvinylidene fluoride (PVDF), polypropylene (PP), etc. All kinds of materials have their own advantages and disadvantages. The key to commodity characteristics is decided by the manufacturer's modified materials and different technical levels.

3. Famous brands of ultrafiltration membrane: At this stage, famous brands of ultrafiltration membrane in the field include Toray, DuPont, Suez, Koch, Bintel, Minone, Yingge, etc. The filtration precision of ultrafiltration membrane of different specifications and brands is different, and the main parameters of ultrafiltration membrane are different, and the price is certainly different.

The above is a summary of the filtration rate accuracy of ultrafiltration membrane. If there are other problems, you are warmly welcome to contact Tianshui Blue Environmental Protection. Our company will provide you with a lot of specific guidance on ultrafiltration membrane information.