What is the difference between a reverse osmosis water purifier and an ultrafiltration machine?

What is the difference between a reverse osmosis water purifier and an ultrafiltration machine?


The difference:
First, the principle of purification
First of all, although both water purifiers can purify impurities in water, the purification principle is not the same. RO reverse osmosis water purifier is equipped with RO reverse osmosis membrane. Under the action of pressure, water can pass through RO membrane. Those inorganic salts, heavy metal ions, bacteria, viruses, and other impurities will be blocked by reverse osmosis membranes.
The ultrafiltration water purifier purifies the water source through its internal ultrafiltration membrane. Under the pressure difference, the water source can pass through the membrane and filter the impurities.

Second, purification accuracy
The two water purifiers with different purification methods have different purification precisions according to different principles. There is a layer of RO membrane inside the RO reverse osmosis water purifier. The pore size of this membrane is as small as a nanometer, while the size is as small as the virus and bacteria, and its volume is also a thousand times that of the RO membrane. The RO membrane is basically only water, does not contain other elements, and the filtered water can be boiled or boiled.
The ultrafiltration water purifier has an ultrafiltration membrane inside. The pore size of this filter membrane ranges from 0.01 to 0.001 μm, which is an order of magnitude larger than that of the RO reverse osmosis water purifier. At the same time, ultrafiltration membranes not only allow water to pass through but also allow small, small molecules to pass through, such as some mineral elements.
Third, the filter results
RO reverse osmosis water purifier separates water and concentrated water under a certain pressure, which makes the water purifier not only need electricity but also produces a certain proportion of wastewater.
The ultrafiltration water purifier relies entirely on water pressure for adjustment, eliminating the need to plug in the power supply.

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