Why do some water purifiers filter water and slowly turn yellow when boiled?

There is also a rear one after the water purifier is filteredActivated charcoalThe water that comes out has trace minerals, and the yellow color that comes out of electrolysis is minerals.

Water purifiers can be divided into two categories: gradual tightening water purifiers and self-cleaning water purifiers according to the pipeline design level. The traditional water purifier is a progressive water purifier, and its internal pipeline design filter element is loose in front and tight in the back, and is composed of PP meltblown filter element, granular carbon, compressed carbon, and RO reverse osmosis membrane.

or ultrafiltration membrane and post-activated carbon, which are generally composed of these 5 stages connected end to end.

Retention is deposited inside the filter element and needs to be manually dismantled and cleaned at regular intervals to ensure proper machine operation. The other type is a more advanced self-cleaning water purifier, which is designed with two channels in the machine and adds a washing water channel, which is used as the washing water of ordinary domestic water through the channel to flush the raw water side of the filter element in the machine, especially the membrane filter element, to achieve self-cleaning.

And use the moment when the washing faucet is opened and closed, that is, the water that has flowed out of the head and tail sections, the intercepted dirt will be discharged in a timely and rapid manner, this structural design.

It saves the trouble of manual dismantling and washing, eliminates the re-pollution of the institution itself, and at the same time, reduces the cost of energy consumption.

However, consumers should pay attention to identify that the self-cleaning water purifier is different from the automatic sewage water purifier, computer automatic flushing water purifier and automatic backwashing water purifier seen on the market, the former is the whole machine self-cleaning, that is to say, all the filter elements inside the machine have a certain self-cleaning function; The latter flushes only one of the cartridges and not the entire machine.

In layman's terms, a self-cleaning water purifier is equivalent to installing a garbage disposer on the pipeline, and the dirt can be cleaned out at any time without staying in the machine. The traditional non-self-cleaning water purifier is equivalent to placing multiple garbage cans in the room, and the dirt is usually temporarily stored in the machine, so it needs to be drained, dismantled and cleaned regularly, and the filter element needs to be replaced frequently.

The above content reference: Encyclopedia - Water Purifier.

If these water purifiers are filtered and the water is boiled again, it is still okay to slowly turn yellow, because after all, the water can still be used in the future, so it is okay to re-boil the water.

After the water purifier is filtered, the water is boiled or slowly turns yellow, check the filter parts in the water purifier, if it needs to be cleaned, it can be cleaned, and the replacement that needs to be replaced can solve the problem of water turning yellow.

The water filtered by some water purifiers boils and slowly turns yellow, that is, your water purifier has been too long, you can't use it, you have to change it to a new one, and it's okay to change it to a Xin'er, and it's the phenomenon of deterioration after a long time.

There are two kinds of water purifiers, one does not need to be boiled.

Some water purifiers use ultrafiltration, which uses the fluidity of water to physically purify water. After the water is passed through the membrane, the contaminants are filtered. Although it is relatively inexpensive and causes a small amount of wastewater, the purified water cannot meet the standard of direct drinking water, so it cannot be directly drunk.

The other water purifier uses reverse osmosis filtration, and its filter membrane is similar to a semi-permeable membrane compared with the former, which can selectively pass through small molecule impurities and microorganisms in the water. Although it causes a large amount of wastewater, the purified water meets the standard of direct drinking water and can be directly consumed.

Precautions for daily use.

1. Frequent flushing: In the process of daily use of the tap to take water, it is recommended to open the tap to rinse after taking the purified water, and wash away the intercepted pollutants in time to maintain the high water flux of the water purifier, so as to prolong the service life.

2. Backwashing to restore water production: If the water production of the water purifier is still relatively small after passing the flush, you can consider backwashing the water purifier.

The above content reference: People's Daily Online-Can the water produced by the water purifier be directly drunk?

There are two main types of terminal water purifiers on the market:

One is the reverse osmosis direct drinking machine. It is suitable for areas with hard water quality and poor water quality, its core component is a RO membrane, which can filter out all the impurities in the water, and only water molecules can pass through, so the water filtered by this direct drinking machine is equivalent to pure water and can be directly drunk.

The other is an ultrafiltration machine. It is suitable for areas with relatively good water quality, it has no waste water, and removes microorganisms, bacteria and viruses in the water while retaining certain trace elements and minerals, so the water filtered by the ultrafilter is equivalent to mineral water, and it is recommended to boil it and drink.

I feel like the water from the water purifier is still going to boil, because it's not high-temperature sterilized, and if he gets rid of that magazine or something.

This depends on the filtration accuracy of the water purifier. Water purifiers with a filtration accuracy of 50-100 microns filter large particles of impurities such as rust and sediment; The water purifier with a filtration accuracy of up to microns filters turbid impurities such as organic matter and variegated colors; Water purifiers with a filtration accuracy of up to microns filter dissolved pollutants such as heavy metals, pesticides, and bacteria. Generally, it is filtered through a reverse osmosis water purifier, and water with a TDS value of less than or equal to 40 can be safely drunk directly.

Yes: Although the water purifier is filtered, there will still be some bacteria, in comparison, there is no hot water, there are not too many impurities, and drinking hot water often is better than drinking cold water.

In fact, it is no problem to drink it directly.

However, pay attention to the time of use.

It doesn't mean much if the water is boiled or not.

The function of the water purifier is that it can be drunk directly.

But here are the premises.

It is whether the filter element is replaced regularly.

The general water purifier filter is used for about a month.

If it is exceeded, the effect of filtration will not be achieved.

At this time, it is time to boil and drink.

There are also two types of water purifiers, one is that the water of the ultrafiltration water purifier may need to be boiled before drinking, and the other is that the water purified by the reverse osmosis water purifier can be directly drunk.

Dear, I'm glad to answer for you: This question has the following situations.

1. Local water quality problems.

The water quality of the subject is relatively poor, just like the northern city where I live, the water quality of the nearby water source is very poor, the water quality is relatively hard, and the phenomenon of scale often occurs. It is not possible to completely eliminate limescale by using a regular water purifier.

2. Secondary pollution in the community.

If the local water quality is relatively clean and nearby residents do not report the presence of scale, it is likely that the water source of the subject community has been polluted twice. Think about some older communities, will install a water storage tank on the roof of the building, this water storage tank is the biggest source of pollution.

3. The filtration effect of the water purifier is not good.

The filtration accuracy of the water purifier used is not enough, there are many types of water purifiers, there are several types of microfiltration, ultrafiltration, nanofiltration, and reverse osmosis, only the water purified by the reverse osmosis water purification is pure water, which can be drunk directly, of course, there will be no scale when boiled. Several other types of water purifiers are not thoroughly filtered, and it is easy to produce scale after the water Changli chain is boiled.

4. The filter element of the water purifier exceeds the use time.

The water purifier at home has been used for a long time, and the filter element cannot be filtered normally after the filter element replacement time is exceeded. It will also cause limescale after the purified water is boiled.

In detail, let's start with how scale is formed.

Too much calcium and magnesium ions in water are produced, and too much calcium and magnesium ions in water will lead to the formation of calcium carbonate, magnesium carbonate and other substances when heated. It appears as a loose white precipitate, which does not immediately form stubborn scaling, and this phenomenon itself is not harmful to the body, but it is unacceptable to the senses.

The composition of scale is mainly composed of calcium, magnesium, colloids and other substances, and the tap water with high hardness before purification is soluble in water before purification and filtration. For example, calcium and magnesium ions will adhere to the bottom of the pot to form scale; Purified tap water with high hardness.

After purification by the water purifier, the colloids in the water are filtered out, making calcium and magnesium ions insoluble in water. These are not visible in cold water. When boiled, it will float on the surface of the water.

At present, some Nasun water purifiers use micro-spicy pore size to isolate all water-insoluble harmful substances through ultrafiltration technology, and only water-soluble beneficial trace elements and minerals are retained in the water. In this way, we don't need to drink harmful and rotten substances, and we can enjoy the beneficial substances in the water with confidence. Because of the energy, there are no harmful substances in the water that are insoluble in water.

The minerals released by heating have no place to attach, so the white floats we see appear.

When calcium and magnesium ions remain in the water, they will form scale adhesion to the bottom of the boiling water container for a long time.

The realization of trembling orange as a white precipitate in bulk will not immediately form stubborn scaling, which itself will not be harmful to the body, but it is unacceptable to the senses. After purification of water, the colloids in the water are filtered out, making calcium and magnesium ions insoluble in water. These are not visible in cold water.

When boiled, it will float on the surface of the water.

The white floating objects that the user sees after boiling the water purified by the water purifier are not released by the water machine, but the raw water. White floaters are actually minerals in the raw water. The advantage of ultrafiltration technology is that it can not only remove harmful substances such as sludge, rust, sand, bloodworms, heavy metals, germs, oxides, etc., but also retain the original trace elements and minerals in the water.

If the removal effect of the water purifier is not good enough, it may lead to a certain amount of pollutants remaining in the water, and boiling the dust-resistant water will produce scale.

Say a thousand, say ten thousand, the reason is that the quality of the water purifier is not good.