How to determine if the water in your community is water from the water company

If you want to know whether the water in your community is the water of the water company, you can call the water company's ** consultation, or go to the property management center of the community for psychological counseling.

Tap water disinfection mostly uses chlorination, the main purpose of public water chlorination is to prevent water-borne diseases, this method has been promoted for more than 100 years, with a relatively complete production technology.

and equipment, chlorine.

It has the advantages of good disinfection effect, low cost and almost no harmful substances for tap water disinfection.

However, after understanding and studying the theoretical data, it is found that the use of chlorine for tap water disinfection still has certain drawbacks. Chlorinated tap water can produce carcinogens, and experts have proposed many improvement measures.

Chlorine dissolves in water and reacts with water to form hypochlorous acid.

and hydrochloric acid, hypochlorous acid plays a major role in the entire disinfection process. For inorganic substances that produce odors.

It can completely oxidize and disinfect it, and for living natural substances such as algae and bacteria, it can penetrate the cell wall.

Oxidizing its enzyme system (enzymes as biological catalysts) renders it inactive, causing the bacteria to die due to their impaired vital activities.

Hypochlorous acid itself is close to neutral, easy to approach the bacterial body and shows a good sterilization effect, hypochlorite ion also has a certain disinfection effect, but it is negatively charged and difficult to approach the bacterial body (the bacterial body has a negative charge), so compared with hypochlorous acid, its sterilization effect is much worse, so the chlorine disinfection effect is better than the use of bleach disinfection.

At this stage, disinfectants include chlorine dioxide in addition to chlorine.

Ozone, the use of alternative disinfectants can reduce the amount of harmful substances generated and improve treatment efficiency.

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. So there are only a few developed countries.

This method of processing is used.

The water in my community comes from **, of course, it comes from the water company. As for which company it came from, it's hard to say. This is because companies do not supply water separately.

Some old communities may be using their own wells for water supply. This exists in some cities in the north. But residents are still not very aware of this.

The most convenient way is to ask the property management staff if the water in the community is from the water company.

Summary. There are two kinds of tap water, one is to drill wells to extract groundwater, one is to take surface water from reservoirs, rivers and lakes, and the general domestic water is mainly used to absorb rivers, lakes and groundwater through the water pumping station of the water plant, and the surface water is treated by the sedimentation, disinfection, filtration and other processes of the water plant, and finally transported to each user family through the water distribution pumping station. Tap water refers to the water that meets the corresponding standards and is produced for people's life and production after purification and disinfection by the tap water treatment plant.

There are two kinds of tap water, one is to drill wells to extract groundwater, one is to take surface water from reservoirs, rivers and lakes, and the general domestic water is mainly used to absorb rivers and lakes and groundwater through the water pumping station of the water plant, and the surface water is processed by the sedimentation, disinfection, filtration and other processes of the tap water plant, and finally transported to each user family through the Qiaobei water distribution pumping station. Tap water refers to the water that meets the corresponding standards and is produced for people's life and production after purification and disinfection by the tap water treatment plant.

First of all, the water source must be pumped from the rivers and lakes to the water plant (the water intake is different in different regions, and the water source directly affects the quality of drinking water in an area); Then after coagulation, sedimentation, filtration, sent to the clear water pool and disinfection, the water pump is fed into the tap water pipeline at high pressure, and the main pipeline generally uses prestressed concrete pipes, steel pipes, PE pipes, ductile iron pipes and other pipes; Eventually, it is shunted to the user's 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. The main purpose of chlorination of public water supply is to prevent water-borne diseases, which has been popularized for more than 100 years, and has a relatively complete bio-based sensitive production technology and equipment.

The chlorination method has the advantages of good disinfection effect, low cost and almost no harmful substances. The world's safest tap water disinfection method 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.

6 ways to judge your own water quality.

1. Look: Observe directly with the naked eye, you can use a transparent glass to fill a glass of water from your own faucet, precipitate for three hours, and then observe whether there is sediment at the bottom of the cup, if there is, it means that there are too many suspended impurities in the water.

2. Smell: It is to feel the smell of water with your nose, most of the tap water in China is disinfected with chlorine, and if the chlorine exceeds the standard, it will produce a very pungent smell.

3. Taste: Of course, it is to drink and try, drink hot boiled water, whether there is a taste of bleaching powder (chlorine), if you can smell the taste of bleaching powder (chlorine), it means that the residual chlorine in the tap water exceeds the standard! Terminal treatment must also be carried out using a water purifier.

4. View: It is different from looking, the view is to observe the condition of the water in a certain period of time, make tea with tap water, and observe whether the tea turns black after overnight, if the tea turns black, it means that the iron and manganese in the tap water are seriously exceeded, and the water purifier equipped with iron removal and manganese filter should be used for terminal treatment.

5. Taste: Tasting water is also the same as tasting tea, you have to experience it with your heart, pour a glass of boiled water, taste boiled water, taste whether there is a feeling of astringency, if there is, it means that the hardness of the water is too high.

6. Check: It is to check the water heater and boiling kettle at home, whether there is a layer of yellow scale on the inner wall, if the water quality is hard, some of the water containers in the home will be scaled, which is what we often call "scale".

1.Look: Fill a glass of water with a glass of transparency, and look at the light to see if there is any fine substance suspended in the water? Let it sit for three hours and then observe the bottom of the cup for sediment? If there is, it means that the suspended impurities in the water are seriously exceeded.

2.Smell: Take a glass of water as far away from the faucet as possible, and then smell it with your nose, is there a smell of bleaching powder (chlorine)? If you can smell the smell of bleaching powder (chlorine), it means that the residual chlorine in the tap water exceeds the standard.

3.Taste: Drink hot boiled water, whether there is a taste of bleaching powder (chlorine), if you can smell the smell of bleaching powder (chlorine), it means that the residual chlorine in the tap water exceeds the standard! Terminal treatment must also be carried out using a water purifier.

4.Opinion: Make tea with tap water, and observe whether the tea turns black after overnight? If the tea turns black, it means that the iron and manganese content in the tap water is seriously exceeded, and a water purifier equipped with iron removal and manganese filter elements should be selected for terminal treatment;

5.Product: Tasting boiled water, does the taste feel astringent? If so, it means that the hardness of the water is too high.

6.Check: Check the water heater and boiling kettle at home, whether there is a layer of yellow scale on the inner wall?

If there is, it also means that the hardness of the water is too high, (the content of calcium and magnesium salts is too high), and the softening treatment should be used as soon as possible! Note: Water with too high hardness can easily cause scaling of water heater pipes, and burst pipes due to poor heat exchange; Long-term drinking of water with too high hardness can easily cause people to get all kinds of stones.

Whether the tap water quality at home is good or not, teach you a few tricks, easily identify, don't drink the wrong one.

Although some tap water forms a lot of scale, it does not affect human health when drinking because it presides down after boiling baboons.

Typically, you can tell by the look, smell, and taste of tap water. The appearance of normal tap water should be clear and colored, smell no odor (the smell of slightly disinfected water is a normal phenomenon), and there is no peculiar smell when drinking (the smell of slightly disinfected water is a normal phenomenon).

The judgment is very simple, the current water quality, look at it, smell it and you can know. What do you want to say about heavy metals, organic matter, etc., etc. Then I won't say anything. I just want to know now, what water purifier is good.

Upstairs is right, I really didn't think the water quality was dirty before, the pollutants in the original water were invisible to our naked eyes, since I used the water purifier, I knew that it was not ordinary dirty... It is recommended to install a water purifier at home.

I think the best way to test is to filter it through a filter for a while, and you will understand how dirty the water we drink is... The whole filter is yellow...

(1) Determination of chloride ions in water.

b) Determination of CODCR.

3) Determination of water quality color.

I didn't study chemical engineering, so I naturally didn't understand it. But I know that the water pollution is serious now, and it's chilling to think about it.

It's usually a matter of the senses.

Summary. In addition to identifying water quality with the naked eye and smell, you can also use a TDS pen for water quality testing.

In addition to identifying water quality with the naked eye and smell, you can also use a TDS pen for water quality testing.

If the tap water at home tastes stiff, it is recommended to install a water purifier to filter it.

This is a sample of the water in the community after it was measured with a pen.

Do you usually feel anything special when you drink it, it is more stiff or something?

Or let a glass of water sit to see if the water is cloudy.

It is recommended to boil the water and drink it, judging from the results of the test, the water quality should not be ideal, but the machine cannot be completely trusted.

Tap water refers to the fresh water taken from lakes, rivers, wells or reservoirs and other water sources by the water plant, through coagulation, sedimentation, filtration, disinfection and other water purification processes, and finally supplied to users by pumps through water transmission and distribution pipelines. Some countries and regions stipulate that tap water must meet the national sanitary standards for drinking water and can be drunk raw, otherwise it must be boiled before it can be consumed.

There is also a kind of seawater desalination to become drinking water, advanced countries have developed seawater desalination plants, but due to the high cost of treatment, most of them are only used in places where there is a lack of water sources. As part of the indoor plumbing project, tap water began to appear in the late 19th century and became popular in the mid-20th century.

Clear and transparent. There is no noticeable sediment (hardness) after boiling.

No odor.

It has a very slight bleaching powder taste (residual chlorine).

Buy a TDS pen, it's not expensive, there are a lot of them.

The simplest is to judge whether the water is soft or hard, hard water is alkaline, soft water is acidic, look at the state of soapy water when washing clothes, if there are particles without much foam is hard water, rich foam without agglomeration is soft water.