Applications of Microporous Filter Membrane
Main Applications
Microporous membrane filters are made of macromolecule chemicals and pore-forming additives which are specially treated and coated on the support layer. It is widely used in scientific research, food detection, the chemical industry, nanotechnology, energy, environmental protection, and many other fields.
Membrane filters are used in food and beverage, medical pharmaceuticals, municipal industrial water treatment, industrial high-purity water, boiler water supply, seawater desalination, ultra-pure water in electronic industry, wastewater treatment and reuse, material concentration and purification, and other industries.
Bacteria that filter out particulate matter such as medicinal liquid, gas, oil, beverage, alcohol, electronic instrument, etc. can also be used for embolism tests of particulate matter and bacteria.
In industry, it can be used in dairy products manufacturing, semiconductor manufacturing, food manufacturing, paper manufacturing, and pharmaceutical manufacturing.
| Material | Symbol | Main Properties | Application |
| Mixed cellulose filter membrane | CA-CN | 1. High porosity and good interception effect. 2. Intolerant to organic solutions, strong acid and strong alkali solutions. 3 High value-cost ratio. | 1. In labs and small craft products, especially during removal filtration of bacteria and particle removal. 2. Detection OF coil-group in water. 3. Filter membranes of two and five microns are also applied to oil filtration. |
| Grille Membrane | G/CA-CN | It is an ideal and accurate product of laboratories and quality supervision departments, also a super-clean blend membrane with printed grids for operators to easily count retentate amounts. It is usually applied to particle and bacteria detection as a composition of culture medium. | 1. Detection of coil-group in water. 2. Detection of bacteria in medical industry |
| Nitrate Cellulose | CN | High adsorbability to biological macromolecules such as proteins. | 1. Bacterial Cultivation and bioengineering of medical research and diagnosis. 2 DNA-RNA hybridization experiments and identification. 3. Liquid scintillation determination and super-clean preparation of radioactive tracers. 4 Electrophoresis, microelement analysis, etc. |
| Acetate Cellulose | CA | Low adsorbability to proteins. | 1. Suitable for filtration of low molecular alcohols and oils. 2. Analysis and detection of some special components in scientific researches. |
| Nylon | JN | Resistant to alkaline and organic solutions. | — |
| Polyethersulfone | PVS | Large flux and low adsorbability to proteins. | — |
| Glass Fiber Membrane | BF | High flow velocity and high temperature resistance. | 1. Detection of air pollution. 2. Filtration of biological macromolecule sediments. 3. Pre-filtration of membranes. |
Water Treatment
Microfiltration membranes are commonly used in the treatment of feces and urine, urban sewage, and various wastewater.
Membrane filter has been applied to the treatment of paint-spraying wastewater, metal processing wastewater, food industry wastewater, and the recovery of useful substances in the automobile manufacturing industry. Ultrafiltration has good removal characteristics for all kinds of colloids in water, so it can be extended to the pretreatment of condensate water purification and ion exchange desalination system.
More extensive, household ultrafiltration water purifier, ultrafiltration membrane. It can remove macromolecules, colloids, proteins, and particles in solution, and has the characteristics of low pressure, large water production, and easy operation.
In addition to water treatment, membrane filters can also be used for ultra-pure water production and desalination.
Along with the rapid development of filtration technology, it has been being applied in more and more industries. In the wine industry, the filter membrane is usually selected according to the different specific wine species.
Wine Industry
Along with the rapid development of filtration technology, it has been being applied in more and more industries. In the wine industry, the filter membrane is usually selected according to the different specific wine species.
Application in Beer Production
The beer could be divided into two categories – pasteurized and draught beer, depending on whether it has been pasteurized or not. During the production of pasteurized beer, the PP filter membrane of pore size 3μm and 1μm are commonly used for coarse filtration and fine filtration respectively.
The Nylon and PES filter membrane could meet a higher filtration standard in the fine filtration process. For the draught beer, both pore size 3μm and 1μm PP membranes are used for coarse filtration. However, the pore size of the membrane has to be 0.22μm or 0.45μm to ensure absolute sterilization in the terminal stage.
Application in the Liquor And Fruit Wine Production
In the production of liquor and fruit wine, the PP membrane is used for the pre-filtration in terms of its high resistance to strong acids and high flow rate. When it comes to the terminal stage, the performance of the PVDF and the Nylon membrane is better for liquor filtration, and the PES membrane is better for fruit wine.
It is hydrophilic, non-toxic, and hygienic. It is a porous membrane filter material. Its pore size distribution is uniform and penetrating, and its micropore rate is as high as 80. It is mainly used for the filtration of water system solution, so it is also called a water system membrane.
Characteristics of the HAWACH Microporous Membrane Filters
- High porosity: 70% – 80% with the pore size distributed evenly.
- Membrane thickness: 100-160um.
- Fast filtration speed, less adsorption, no medium shredded.
- Appearance: white, flat, smooth, without pinholes.
- Filtration accuracy(um): 0.1, 0.22, 0.45, 0.65, 0.8, 1.2, 2.0, 5.0, 10.
- With food-grade polypropylene as raw material, there is no additive in the whole process of production.
- The physical and chemical properties are stable and compatible.
- It has a series of pore sizes, high porosity, large pollution acceptance, and can be back-washed.
We can be made according to customer requirements, contact us for customization of different specifications. info@hawach.com
