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Introduction To The Difference Between The Reverse OSMOSIS AND ULTRA FILTRATION

Different pore size:

Ultrafiltration membrane is a kind of microporous filtration membrane with the same pore size standard and an extra pore size of 0.001-0.02 microns. Applying proper pressure on one side of the membrane can screen out solute molecules smaller than the pore size to separate particles with a molecular weight greater than 500 Daltons (atomic mass units) and a particle size greater than 10 nanometers.

The pore size of the RO membrane is only 1/100 of the pore size of the ultrafiltration membrane, so the RO membrane can remove very small organic molecular pollution in the water, such as chemical organics and organic pesticide pollution. Ultrafiltration membranes cannot. The reverse osmosis membrane also has the function of softening water quality, turning hard water into soft water.

Different filtration accuracy:

The filtration accuracy of the ultrafiltration membrane is 0.01 microns, which can remove microorganisms, colloids, diatoms and other substances that cause turbidity. It has good hydrophilicity, long life, strong anti-fouling ability, and can keep beneficial minerals. It is used in kitchen water purifiers with large water output.

The RO reverse osmosis membrane has a filtration accuracy of 0.0001 micron (one ten-thousandth of a micron), which is currently the highest filtration accuracy filter element that can filter bacteria, heavy metals, organics, residual chlorine, colloids and other harmful substances in the water. RO membrane has the same quality of purified water, long service life, automatic sewage discharge, large water production, and safe drinking.


Different scales of use:

    Ultrafiltration membranes are used in: drinking water treatment, domestic sewage and industrial wastewater treatment, other sewage treatment, and in food, they are used in the concentration and clarification of fruit juice, beer production and nutrient extraction, etc.; in pharmaceuticals. It is used in the separation and purification of drugs, depyrogenation, sterilization, etc., especially in the separation and extraction of antibiotics and vitamins.

    The RO membrane is used in: steel, electronics, medicine, electricity, petrochemical, food and beverage, municipal and environmental protection, etc., in the desalination of seawater and brackish water, boiler feed water, industrial pure water and electronic grade ultrapure water preparation, pure drinking. It plays an important role in water production, wastewater treatment and special separation processes.

The working principle is different:

the working principle of the ultrafiltration membrane: the ultrafiltration membrane is a membrane separation technology. That is, under a certain pressure, water flows on the membrane surface. The water and dissolved salts are tiny particles with other electrolytes, which can penetrate the Osmosis And Ultra Filtrationmembrane, while the particles with large molecular weight and colloidal substances are blocked by the ultrafiltration membrane, thus making Technology to separate some particles in water. It is suitable for water treatment needs of medium pollution and low hardness water sources. The working principle of reverse osmosis: reverse osmosis technology, also known as RO membrane technology, under pressure, water molecules flow through the membrane layer, but impurities cannot penetrate the RO membrane, thus realizing the sharing of pure water and contaminated impurities.

RO membrane can filter out heavy metals, organic matter, bacteria, residual chlorine, etc. in water, and reverse osmosis membrane does not separate dissolved oxygen, so the produced water is living water, which is especially suitable for water treatment requirements of high pollution and high hardness water sources.

It can be seen from the above analysis that there are still differences between ultrafiltration membranes and RO membranes. But, with the country and the world attaching importance to environmental protection and the continuous updating of technology, that whether it is ultrafiltration membranes or RO reverse osmosis membranes, they all play a great role in water treatment.

Tags- Osmosis And Ultra Filtration, Ultrafiltration Membranes, RO Membranes, RO Reverse Osmosis Membranes, Waste Water Treatment Coimbatore, Tamilnadu, Chennai, Madurai, Kerala, Karnataka, Packaged Sewage Treatment Plant Manufacturers

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