The water from the water company is in line with the national health standards, but have you found that the water connected to the faucet will have sediment or white suspended solids?
The water from the water plant factory is sent to thousands of households, and it needs to go through the transportation pipeline, high-rise water tower, water tank, etc. The transportation pipeline is broken for a long time, and the pollutants such as sediment, bacteria, heavy metals, and organic matter in the soil will enter the pipeline through the cracked place, resulting in secondary pollution of tap water.
Urban high-rise users use water pressure is low, to pass through the water tower, the second water tank is water supply, water tower, water tank for a long time is not cleaned or cleaned up, will also lead to secondary pollution of water.
Tap water is added chlorine disinfectant before leaving the factory, killing microorganisms in tap water and tap water pipes, preventing the spread and epidemic of water-borne infectious diseases, and the water with residual chlorine will have white suspended solids just after joining, and there will be a pungent smell of bleaching powder when drinking.
If the residual chlorine residue in the water is not controlled in place, the excess exceeds the standard, and there will be hidden dangers to the health of drinking water.
Whether it is the secondary pollution of tap water or the hidden dangers caused by residual chlorine to human health, it is necessary to install water purifiers at home.
What are the differences between ultrafiltration and reverse osmosis water purifiers?
The water purifiers on the market are microfiltration, ultrafiltration, nanofiltration, RO reverse osmosis, and the mainstream water purifiers are ultrafiltration water purifiers and RO reverse osmosis water purifiers.
The filter element of the ultrafiltration water purifier adopts pp cotton + activated carbon + ultrafiltration membrane, and the filter element of the reverse osmosis water purifier is pp cotton + activated carbon + RO reverse osmosis membrane.
The different types of filter elements lead to their different working principles:
Ultrafiltration water purifier is a kind of physical filtration through the pressure of the tap water itself, through the ultrafiltration membrane.
Reverse osmosis water purifier is the principle of reverse osmosis, the water from one side of the reverse filter membrane to the other side, there must be additional pressure.
The different working principles also lead to great differences between them.
1. The filtration accuracy is different
The filtration accuracy of ultrafiltration water purifier is 0.001 ~ 0.1 microns, which can filter the vast majority of impurities, suspended solids, bacteria, viruses, but the filtration of heavy metals and organic compounds is only 60%, retaining trace elements such as minerals, and the water is not pure water and cannot be directly drunk.
The filtration accuracy of the reverse osmosis water purifier is 0.0001 microns, which can theoretically filter all impurities, and the filtered water is direct drinking water.
2. The production of wastewater is different
The work of the ultrafiltration water purifier is a kind of physical filtration, which only filters impurities and does not produce wastewater.
Anti-osmosis water purifier in the filter water, need to have a large amount of water to rinse RO reverse osmosis membrane, will produce wastewater, wastewater ratio is generally 1:2, that is, filter two cups of purified water, will produce a cup of wastewater (wastewater can only not be used as direct drinking water, but also can be collected and used)
3. The amount of water output is different
The physical working principle of ultrafiltration water purifier is not to produce wastewater, and the amount of water output is similar to the original amount of water.
1/3 of the inlet water of the reverse osmosis water purifier becomes wastewater, and the amount of water output becomes correspondingly smaller.
4. Power consumption is different
The physical work of the ultrafiltration water purifier does not require additional pressure, does not require electricity, and does not generate any energy consumption.
The reverse osmosis principle of reverse osmosis water purifier must require electricity to apply pressure to the water source, which requires electricity, and a part of the cost will be increased during use.
5. Prices vary
The RO reverse osmosis membrane of the reverse osmosis water purifier can make the filtration accuracy reach 0.0001 microns, and the effluent reaches the standard of direct drinking water. Ultrafiltration water purifiers can be bought for a few hundred yuan, and reverse osmosis water purifiers need thousands of yuan or even tens of thousands of yuan.
Ultrafiltration water purifiers and reverse osmosis water purifiers have their own advantages and disadvantages after comparison.
How should ultrafiltration water purifiers and reverse osmosis water purifiers be selected?
1. If the tap water is seriously polluted and it is necessary to drink direct water, choose a reverse osmosis water purifier
In areas with poor tap water quality, it is very important to drink healthy direct drinking water, although the reverse osmosis water purifier is expensive, the use process requires electricity, and it will also produce wastewater, increasing the cost of use, but its filtration effect is the best, can reach the standard of direct drinking water.
2. Tap water quality is better, budget is small, choose ultrafiltration water purifier
Areas with better water quality, there are fewer pollutants in the water, and it is not impossible to save costs, the purchase price is cheap, and the ultrafiltration water purifier that basically does not cost money in use, filtered water, and then boiled with a kettle is also a good choice.
According to the quality of water quality in different regions and their own needs, ultrafiltration water purifiers and reverse osmosis water purifiers are selected.
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