Ultrafiltration system for water: what is it and how to choose it
Ultrafiltration systems are similar in structure and principle of work with reverse osmosis filters. However, the pore size in them is larger - from 0.01 to 0.1 micron. Of course, the purification level is not as high as that of reverse osmosis membranes. But it is high enough to neutralize hazardous and poisonous impurities and harmful substances. On the other hand, their productivity and filtration speed are noticeably higher. The use of ultrafiltration systems will be the best choice, if you have made sure that there are no hazardous chemicals in the water. Therefore, it is advisable to analyze the water beforehand. It will reveal the presence or absence of such impurities.
As with reverse osmosis filters, these models have pre-filtration cartridges in front of the Ultrafiltration membrane and post-filtration cartridges after it. The membrane allows you to remove the following types of contaminants:
germs and bacteria;
mechanical particles;
colloids;
molecules of protein compounds.
Ultrafiltration membranes, due to their performance and high efficiency, are widely used in the following industries:
food industry;
chemical and pharmaceutical industries;
metallurgical industry;
textile industry, etc.
Given this, it is not surprising that ultrafiltration systems are so popular in the home. The basic principles of their choice are the same as those of reverse osmosis models. Another interesting solution is Ionizer Machine by Bawell. They have high popularity.
Nanofiltration systems for water: what do you need to know about such filters?
The operation of such filters is based on the reverse osmosis principle described above. The purification also takes place virtually at the molecular level and water under pressure passes through the membrane. Pure - is directed to the storage tank, and the concentrate of negative impurities - to the sewerage. The pore size in such membranes is larger than in reverse osmotic membranes, but smaller than in ultrafiltration membranes - from 0.001 to 0.1 micron. However, in contrast to the reverse osmotic models, nanofiltration involves the division of the water flow into unequal parts. The smaller part is a concentrate of impurities, and the larger one is pure drinking water.
The main features of nanofiltration systems:
the ability to retain only cations (the reverse osmotic membrane retains cations and ions);
lower water consumption;
high performance.
Nanofiltration systems for water: what do you need to know about such filters?
The operation of such filters is based on the reverse osmosis principle described above. The purification also takes place virtually at the molecular level and water under pressure passes through the membrane. Pure - is directed to the storage tank, and the concentrate of negative impurities - to the sewerage. The pore size in such membranes is larger than in reverse osmotic membranes, but smaller than in ultrafiltration membranes - from 0.001 to 0.1 micron. However, in contrast to the reverse osmotic models, nanofiltration involves the division of the water flow into unequal parts. The smaller part is a concentrate of impurities, and the larger one is pure drinking water.
The main features of nanofiltration systems:
the ability to retain only cations (the reverse osmotic membrane retains cations and ions);
lower water consumption;
high performance.
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