Is tap water dirty? Can you drink it directly?

Tap water is not recommended to be drunk directly, if you need to drink it, it is recommended that you buy a filtered product, filter it and boil it before using it.

Conveyance of tap water

Tap water is transported to the home through the city's municipal pipe network, and the water supply pipes are intertwined in the city's underground disk, and it is necessary to pass a long distance from the water plant to the user end of the pipe network. Therefore, the first and most important question is the age of the water, which is the time that the water stays in the water supply network, of course, the fresher the better. You should have such a life experience, when we turn on a faucet in our home when it is not used often, the water that flows out is rusty, this kind of water is not fresh water, and we need to put the water for a period of time before using it.

Secondly, the issue of water quality is also very important. Often, the water quality at the outlet end of the waterworks is in line with the national standard, but after a long municipal pipeline, the water quality will generally decline when it reaches the user end. The pipes of the municipal pipe network are usually used for decades, and the situation of the inner wall of the pipeline is usually shown in the following figure due to the phenomenon of pipeline leakage pollution, corrosion, and settlement.

Another point is the residual chemicals in the water produced by the waterworks. Usually, after the water plant takes water from the water source, it has to go through four processes: coagulation, sedimentation, filtration, and disinfection. The coagulation process requires the use of coagulants, and the disinfection process requires the use of chlorine.

Therefore, the water flowing from the faucet in our home has residual chlorine, although the residual chlorine is also required by the national standard, but we ordinary people do not have professional equipment to measure whether the tap water quality at home is up to standard.

The situation with tap water in the home is more complex than theoretical, as there are many factors that affect water quality. SoIt is recommended that everyone do not drink raw water and boil it before drinking.

Tap water cannot be drunk directly.

About 50% of the surface water sources are polluted, hundreds of organic compounds and heavy metal ions enter the water sources, and there are also problems such as fluorine, arsenic, iron, and manganese exceeding the standards in underground water sources. In addition, after the tap water is transported through the pipeline for a long time, it is susceptible to secondary pollution due to the aging and rusting of the water pipes. Although chlorine can kill viruses and bacteria in tap water, it cannot remove sediment, rust, heavy metals, volatile substances, etc.

Tap water disinfection mostly adopts chlorination method, the main purpose of public water chlorination is to prevent water-borne diseases, this method has been promoted for more than 100 years, with more perfect production technology and equipment, chlorine for tap water disinfection has the advantages of good disinfection effect, low cost, and almost no harmful substances. However, after understanding and studying the theoretical data, it is found that the use of chlorine for tap water disinfection still has certain drawbacks. The world's safest method of disinfection of tap water is ozone disinfection, but this method is too expensive to treat, and the retention time of ozone treated water is limited, and there is no exact concept of how long it can be retained.

Therefore, only a few developed countries use this treatment.

Tap water is generally not recommended to be drunk directly, but tap water is usually disinfected before entering the house, drinking will not cause serious adverse consequences, and there will be no harm.

1. The tap water standard is set to take care of the actual water quality of the vast area of our country, and is the most basic safety line, figuratively speaking, the tap water standard is equivalent to 60 points in the exam, which is just a passing line.

2. The 106 indicators of tap water cannot completely exhaust all kinds of harmful elements to the human body, but only common harmful substances. Therefore, even if all 106 indicators are qualified, there is no guarantee that there are still harmful substances other than 106 indicators.

3. The tap water safety standard is based on statistical data and is a basic guarantee line for safety. In real life, because of individual physical differences, each person's tolerance to harmful substances is different, and for those whose tolerance is lower than the average, the content that is safe for the vast majority of people may be dangerous or even fatal to him.

4. The effect of some harmful substances is gradually accumulated, such as heavy metals. Even safe doses of harmful substances can cause illness when they accumulate in a certain amount in the body.

5. Residual chlorine always exists in tap water, because chlorine is deliberately added in the tap water process, and residual chlorine is not good for human health.

Tap water refers to the water produced by the tap water treatment plant after purification and disinfection that meets the corresponding standards for people's life and production. In other words, tap water is sterilized, filtered water. But disinfection filtration is not a panacea, and some things cannot be filtered.

The tap water we use in our daily lives may have the following problems:

1. Disinfectant bleach.

When the waterworks disinfect the tap water, they will use a large amount of bleach, the bleach is mainly chloride, even if it is boiled water, it is difficult to remove and decompose, and the long-term use of water containing bleach will affect health.

2. Rust. Tap water is generally transported by galvanized iron pipes, and rust is formed when water and iron are oxidized. Almost all of us have had the experience of turning on the faucet for the first time every morning, and the reddening substance in the water is rust.

Excessive iron content in water will increase the burden on the kidneys, leading to endocrine system disorders, high blood pressure and other diseases.

3. Bacteria. Whether it is surface water or groundwater as a water source, bacteria and E. coli in tap water can be said to be ubiquitous. Especially in this hot summer, it is easy to breed bacteria.

Water is the source of life, water contains nutrients, and water has relative thermal stability, so it provides an excellent environment for all kinds of bacteria to grow and multiply.

4. Heavy metal pollution.

More than 4,000 water plants above the county level in the country, 98% still use traditional water treatment processes, if the water source is polluted by heavy metal ions and organic compounds, it is difficult to filter out heavy metals by traditional process filtration.

However, as long as it is not a contaminated water source, there is basically no problem with boiling it and drinking it. But if you want to drink tap water directly, you can install a Rolet reverse osmosis water purifier at home.

It doesn't look dirty but it doesn't meet the drinking requirements, so it's safer to boil it before drinking.

Otherwise, you have to buy a reverse osmosis water purifier, and the filtered pure water can be drunk directly.

As long as the tap water provided by the regular water plant can meet the standard of drinking water. But it's best not to drink it directly, because during transportation, a small amount of bacteria may seep in.

Tap water is not drinkable. There are the following problems in tap water: 1. Heavy metal pollution, surface water source is polluted. Second, the quality of the water supply pipe network is generally low.

Due to the problem of water pressure, the city's high-rise buildings have the problem of secondary water supply pollution, which is really not directly drinkable, tap water has strict testing, but this time it is sent to your secondary water supply tank, and then you pressurize the water supply, the box is not clean and polluted, which can not rely on the tap water is not good.

After the tap water is treated by the water plant, it is difficult to say whether it is qualified and then flows through the underground pipeline and is sent to thousands of households, and it is best not to drink it directly.

It stands to reason that tap water has removed a lot of impurities and microorganisms after disinfection, but compared with boiling water, it is still not as good as boiling water, boiling water is heated and boiled, it can be sterilized and sterilized, and it is safer and hygienic to drink after that. After all, tap water has to go through various pipes, and microbial impurities in the pipes cannot be avoided.

The current tap water, to be precise, cannot be drunk directly.

Tap water is not recommended to be drunk directly.

There are a lot of impurities in it, don't drink it directly, you need to filter it.

Tap water is drinking water produced by professional equipment through multiple complex processes.

The treatment process of tap water is as follows: the water source is pumped from the rivers and lakes to the water plant; After sedimentation, filtration, disinfection, storage (clear reservoir), and then by the water pump high-pressure input into the water pipeline; Shunt to the user faucet. The whole process has to go through multiple water quality tests, and in some places, it has to go through secondary pressurization and secondary disinfection before entering the user's home.

Disinfection method: At present, most of the tap water disinfection is chlorinated, and the main purpose of chlorination of public water supply is to prevent water-borne diseases. The use of chlorine for tap water disinfection still has certain drawbacks.

Chlorinated tap water can produce carcinogens, and experts in the relevant field have also proposed many improvement measures. At this stage, in addition to chlorine, disinfectants also include chlorine dioxide and ozone, and the use of alternative disinfectants can reduce the amount of harmful substances and improve treatment efficiency.

- So the water must contain chloride ions, in addition to various minerals, metal ions, etc.; Although it has been disinfected, there is a high risk of bacteria being mixed in when passing through the water pipes. Therefore, tap water is not completely clean and should not be drunk directly for a long time.

It's not a sentence or two that can be said to be accurate, now most of the tap water is treated by the water company, the tap water purification process is not exactly the same, but the main thing is to be disinfected by the hypochlorous acid component, so the tap water will contain a small amount of hypochlorous acid, which is why you can't use tap water to raise fish directly, and people can't drink it directly, but as long as the water company regulates the treated water, it should be safe.

The water produced by the waterworks is drinkable. However, this does not indicate that it is standard drinking water. There are two reasons for this:

1) Although the use of chlorine to purify the water in the production process of tap water can kill harmful substances such as pathogenic microorganisms, the addition of chlorine itself can cause new chemical pollution. Chlorine can be combined with organic matter in water to form chloroform, which is a carcinogen. At the same time, chlorine also destroys nutrients and can easily lead to heart disease.

2) In the pipe network of tap water, long-distance pipeline transportation, old and rusty pipelines, urban high-rise water tanks and building reservoirs are not clean or used all year round without disinfection, which can cause secondary pollution. Secondary pollution causes bacteria, viruses and algae to multiply, plus the original chlorine and chloride, rust, heavy metals, radioactive substances, make the water turbid, have a peculiar smell, and its harm is endless. Therefore, tap water is not standard drinking water.

In a variety of increasingly polluted environments, we must have strict standards for the water we drink in our bodies. To return the original face of water, drinking pure water is in line with the needs of the human body, and drinking raw water is more beneficial to people's health than drinking boiled water. Because boiled water loses too much oxygen, drinking boiled water is not conducive to supplying oxygen to the human body.

Some friends may want to say, I have drunk tap water all my life, and my body is not still good? First of all, the disease of the human body is a cumulative and gradual process, and if you do not drink or drink less unclean water, the body will definitely be healthier than it is now. Second, the water environment today cannot be compared to what it was a few years ago.

In the past, water pollution was mainly due to organic matter and natural pollution, and the main pollutants were bacteria and viruses, so the tap water after boiling can basically achieve the purpose of disinfection. As we have already talked about in modern water pollution, it is mainly chemical pollution and heavy metals in industrial wastewater, and these pollutants cannot be removed by boiling water. Therefore, boiled water is likewise not standard drinking water.

Clean tap water is water that meets the corresponding standards after purification and disinfection by the tap water treatment plant for people's life and production. Domestic water is mainly absorbed from rivers, lakes, groundwater and surface water through the water intake pumping station of the water plant, which is treated by the waterworks in accordance with the relevant health standards for domestic drinking water, through precipitation, disinfection, filtration and other technological processes, and finally transported to various users through the water distribution pumping station. <

Clean tap water is water that meets the corresponding standards after purification and disinfection by the tap water treatment plant for people's life and production. Domestic water is mainly absorbed from rivers, lakes, groundwater and surface water through the water intake pumping station of the water plant, which is treated by the waterworks in accordance with the relevant health standards for domestic drinking water, through precipitation, disinfection, filtration and other technological processes, and finally transported to various users through the water distribution pumping station.

There are many factors that determine how clean tap water is, but in general, tap water is generally drinkable. First of all, tap water is strictly treated and filtered to ensure that it does not contain pathogenic microorganisms and other harmful substances, such as bacteria, viruses, chemical pollutants, and heavy metals. Therefore, tap water undergoes extensive treatment and testing at the source to ensure the safety of water quality for consumers.

Secondly, tap water is also strictly controlled and monitored during the distribution process. The water company will regularly conduct sampling tests on tap water to ensure that the water quality meets the standards. In addition, the pipes also need regular maintenance and cleaning to ensure the stability and safety of water quality.

However, the cleanliness of tap water is also affected by a number of factors. For example, tap water can be affected by other sources of leakage during transportation and distribution, such as sewage discharge and agricultural fertilizers. In addition, tap water can also be contaminated with plastic bottles or other containers that contain chemicals such as organic matter and chlorine, reducing the safety and health of the water quality.

In general, tap water is one of the main drinking water products, and in most cases, tap water is drinkable. However, there are steps we can take in our daily lives to keep tap water safe, such as using filters, drinking boiled water, and reducing the use of plastic bottles and containers. Through these measures, we can ensure that tap water meets higher safety and quality standards, ensuring people's health and safety.