What is the difference between ultrafiltration and reverse osmosis water purifiers

The difference between ultrafiltration and reverse osmosis water purifiers: water purification effect
In fact, the structure of ultrafiltration and reverse osmosis water purifiers is roughly similar. They are equipped with PP cotton, activated carbon and other coarse filter elements in the first half of the ultrafiltration membrane and reverse osmosis membrane. The final gap lies in the ultrafiltration membrane and reverse osmosis membrane. The membrane filtration performance. Generally speaking, the filtration accuracy of ultrafiltration water purifiers is roughly 0.01-0.1 microns, while the filtration accuracy of reverse osmosis membranes can reach 0.0001 microns, which is like a sieve with a pore size for comparison. The accuracy is higher.
As far as the filtering effect is concerned, the ultrafiltration water purifier can remove rust, sediment, bacteria, viruses, residual chlorine, different colors and odors and heavy metals in the water for you, while the reverse osmosis water purifier can further filter out the water. And harmful metal ions, but the calcium and magnesium ions needed by the human body will also be discharged with the waste water. The output of RO reverse osmosis water purifier is almost pure water, and it can even desalinate water and sea water.

Difference between ultrafiltration and RO reverse osmosis water purifier two: wastewater rate
If the amount of raw water entering is the same as the amount of purified water produced, no one believes that they can purify the water? Therefore, if you want to obtain pure and healthy water, you must sacrifice a certain percentage of wastewater. Generally speaking, ultrafiltration water purifiers have very little waste water, but pay attention to regularly open the flushing port to clean the filter element.
In contrast, reverse osmosis water purifiers are more wasteful. In order to ensure the longevity of the reverse osmosis membrane, increasing the ratio of wastewater can prevent the reverse osmosis membrane from fouling and damage. Generally speaking, the wastewater rate of reverse osmosis water purifiers has developed from the earliest 5:1 to 3:1 or even 2:1, which means that two cups of water of the same volume are wasted by a cup of pure water produced. Of course, even the water called "waste water" is very clean. Its purity is higher than raw water but lower than pure water, but its salinity is higher, so it will not be wasted when it is used for washing clothes, mopping the floor or flushing the toilet.
Three differences between ultrafiltration and RO reverse osmosis water purifiers: installation complexity
The reverse osmosis water purifier works by increasing the osmotic pressure to achieve the principle of reverse movement of pure water against the natural osmosis direction. It needs high water pressure to "push", so mainstream reverse osmosis water purifiers can work normally with a booster pump. Reverse osmosis water purifiers need to be connected to the mains before they can be used, and the booster pump will increase the noise of the water purifier.
Ultrafiltration water purifiers use physical filtration. Ultrafiltration water purifiers can filter water normally without pressure in areas where the water pressure reaches the standard. In addition, some ultrafiltration water purifiers are only suitable for the filtration of the single-tube structure filter element, which is less restrictive in terms of space occupation and installation conditions.
The difference between ultrafiltration and RO reverse osmosis water purifier four: outlet water flow
If there is no pressure, the RO reverse osmosis water purifier will not even produce pure water for you, and its fine filtering structure will greatly reduce the flow rate of the water.
Ultrafiltration does not need to worry about the flow rate. They produce about 1.5L of water per minute. In addition, there are some large flow reverse osmosis water purifiers above 400GPD on the market. The flow rate is about 1.2L per minute. If the water consumption is large, you should look at the water flow rate. This key value.