The filtration accuracy of nanofiltration (NF) is between ultrafiltration and reverse osmosis, and the desalination rate is lower than that of reverse osmosis. It is a membrane separation technology that requires electricity and pressure, and the recovery rate of water is low. Most of nanofiltration membranes come from reverse osmosis membranes, but compared with reverse osmosis, its operating pressure is lower, so nanofiltration is also called "low pressure reverse osmosis", which is mainly used to purify drinking water and industrial water.
antiosmosis
The filtration accuracy is about 0.000 1 micron, which is an ultra-high precision membrane separation technology developed by the United States in the early 1960 s using pressure difference. It is a membrane separation technology that needs electricity and pressure, which can filter out almost all impurities (including harmful and beneficial) in water and only allow water molecules to pass through. Generally used for producing pure water, industrial ultrapure water and pharmaceutical ultrapure water.
The water consumption ratio of Haier reverse osmosis water purifier refers to the volume ratio of pure water produced by the water purifier to wastewater discharged in unit time.
"The wastewater ratio of the water purifier is 1:3", that is to say, when the water purifier makes water, each portion of pure water will produce 3 portions of wastewater.
The waste water contains impurities such as rust, virus, bacteria and sand, which will be discharged.
How to install the bucket of Haier reverse osmosis water purifier Under normal circumstances, there will be a label "pressure bucket" on the water purifier. Take over the pipe, then install the ball valve on the pressure barrel, and then connect the PR pipe with the label (pressure barrel) to the pressure barrel.
How much is Haier water purifier HRO50 17-5-5 reverse osmosis water purifier? The prices of different brands of water purifiers vary greatly, so it is impossible to launch them at a unified price. It is recommended to refer to the market situation. The general price of ultrafiltration water purifier is about 2000 yuan. It's not worthwhile to buy more than this price! In the case of reverse osmosis pure water machine, incidental costs, warehousing, transportation, intermediary, brand and other comprehensive costs, 3000-4000, it is not cost-effective to buy more.
The difference between ultrafiltration water purifier and reverse osmosis water purifier depends on the water quality. Reverse osmosis will be better. Generally speaking, the more filter elements tap water flows through, the better the water quality. Therefore, when choosing water purification equipment, we must first look at how many stages (several filter elements) the water purification equipment has filtered. The first and second products are basically eliminated by the market, and the water quality is too poor to choose. If you consider saving money, the three-stage filter element can barely be used. If you pay attention to hygiene, safety and health, you'd better buy four-level or five-level filtration and purification water purification equipment. At present, Bolebao water purifier has four-stage filtration and reverse osmosis technology, which is relatively safe.
Ultrafiltration water purifier is to filter out most impurities in water and improve water quality. It is not recommended to drink this water directly. It is better to boil it. The reverse osmosis membrane of reverse osmosis water purifier is nano-scale, and purified water comes out. For areas with extremely poor water quality, reverse osmosis water purifier is recommended. However, personally, drinking mineral-rich mountain spring bottled water is better than water purifier.
The main difference between reverse osmosis water purifier and ultrafiltration water purifier is filtration accuracy and water purification effect.
The main difference between reverse osmosis machine and ultrafiltration machine lies in filtration accuracy.
The filtration accuracy of ultrafiltration machine is mostly 0.0 1 nm. Using 1 micron PP cotton filter element and activated carbon filter element, rust, sediment, bacteria, viruses, organic matter, bleaching powder and so on with particle size above 0.0 1 nm can be filtered. It can be drunk directly in areas with good water quality and no heavy metal pollution, but it is generally recommended that you boil the water before drinking.
The filtration accuracy of reverse osmosis water purifier can reach 0.000 1 micron. In addition to the above substances, it can also filter out metal ions and water-soluble salts. The filtered water is almost pure water and can be directly drunk. Suitable for areas with serious pollution and users with high water quality requirements.
Main difference: waste water rate
The water purifier will discharge a certain amount of wastewater when making water, and cleaning the filter membrane will also consume some water. Generally speaking, there is not much waste water from ultrafiltration machine, and there is more waste water from ordinary reverse osmosis machine, which is generally 1:3, that is to say, to make 1 part pure water, it is necessary to discharge three parts waste water. Some brands claim that the wastewater ratio is 1:3, but it is actually 1:4 or 1:5. Adding the water for washing the filter membrane, the wastewater ratio even reaches 1:8 or even 1: 10!
There is a lot of waste water, and it's scary! Not only spend money, but also waste the country's precious water resources!
Faced with the industry dilemma of high wastewater rate, Obi-Yuan vigorously researched and developed new technologies, broke through the bottleneck of the industry, and introduced micro-wastewater technology with national invention patents. The waste water ratio is 3: 1, and only three portions of pure water are discharged 1 waste water, which saves nearly 90% water compared with ordinary RO machines. After the waste water rate is reduced, the cost of water use is also greatly reduced, and the cost per ton of water is only half that of bottled water, saving money and worry.
Secondary difference
1, water flow:
The effluent flow of the ultrafiltration machine is large, and the effluent is about 60-70L per hour.
The filtration structure of reverse osmosis water purifier is fine, and the 50G model with the highest permeability on the market only produces 7.8L water per hour. However, in general, this kind of water purifier is equipped with a water storage bucket, and the user experience is the same. Of course, if you want to get a better drinking experience, you can choose a 400G large-capacity reverse osmosis water purifier, which can produce 60L water per hour and save cabinet space.
2. Price:
The filter element of reverse osmosis water purifier has high cost and complicated manufacturing process, so the price is higher than that of ultrafiltration machine.
Haier reverse osmosis water purifier generally does not consider heating. According to statistics, the water temperature of the water purifier is about 1-40 degrees. Below or above the constant temperature, there will be problems such as no water or water leakage in the heating pipe!
The difference between reverse osmosis water purifier and ordinary water purifier Hello, the main function of reverse osmosis is to filter out scale, and ordinary water purifiers also need to be classified. For example, some four-stage water purifiers are customized according to the water quality characteristics of different regions in China, and such water purifiers are completely optional.