What harmful substances are in the water?

1) Tap water is obtained after the water plant treats the water in the river, river, and lake. At present, China generally adopts the water plant treatment, concentrates the water supply, and then supplies the drinking water through the tap water pipeline to the households. For high-rise buildings, the secondary pressurized water supply method for high-rise water tanks is adopted. However, the pollution of water sources caused by industrial development is becoming more and more serious. Due to the limitations of the process, technology, and economy, the waterworks can’t do anything about some pollution.
At present, a certain amount of chlorine preparation (bleaching powder) is used in the disinfection process of tap water, which causes residual chlorine in water and reacts with organic matter in water to form chloroform. It is known that chloroform is the main carcinogen in tap water, in cold water. In the state, chloroform is in the specified range, but the content of chloroform in the tap water rises rapidly after heating, especially at 95 ° C to 100 ° C, and the residue is reduced after boiling for more than five minutes. In addition to chemical pollution, the pipeline Corrosion, water-insoluble calcium, organic matter and storage tanks of high-rise buildings, etc. are also more serious secondary pollution of tap water.
2) boiling water is stagnant water
Chinese people are used to drinking boiled water, that is, boiling water obtained after boiling. It is said that tap water is not safe. After all, there is a certain amount of dissolved oxygen and minerals. In the process of heating water, dissolved oxygen in the water will be lost due to temperature rise. The terrible thing is that the content of chloroform in boiling water is 3-4 times that of tap water. It is no wonder that the water is cooled with boiling water after cooling, and the fish is dead.
3) Pure water (space water, distilled water)
Drinking pure and hygienic water is our current drinking standard, and scientists remind people that “pure water is not equal to healthy water.” Scientists define the new standard for drinking water: oxygen-rich on a pure basis, with activation, solvency and Strong penetration.
Although pure water does not contain impurities and harmful substances, it has been widely debated about its nutrition and secondary pollution.
4) Mineral water is said to contain minerals and trace elements, but some medical experts have suggested that there is no scientific quantitative research on how much mineralization is beneficial to the human body. Moreover, mineral water is not beneficial to anyone, and there are many counterfeit products on the market. Hard to distinguish.
6. How much is human disease related to drinking water?
A: According to the World Health Organization survey, 80% of human diseases are related to water. The main disinfection method for tap water is chlorination. Although it can remove a large number of bacteria, there are also harmful substances, especially heavy metals, chlorine molecules, and nitrous acid in water. Salt and other ingredients. At the same time, the transportation process, water tower storage, etc. all cause a certain degree of secondary pollution. Although the water is boiled, it can not remove harmful substances such as heavy metals in the water. The excessive intake of these substances can cause great harm to the human body.
7. What are the main diseases caused by water pollution in humans?
Answer: Cancer: nitrous acid compounds, chloroform, radiation particles.
Liver disease: toxic organic matter contained in industrial wastewater and pesticides, heavy metals, etc.
Stone: high hardness groundwater.
Cardiovascular: high content of inorganic salts.
Dementia: metal aluminum and so on.
Skeletal disease: heavy metal cadmium.
Hematopoietic system disease: heavy metals.
Endocrine disorders: toxic organic matter, high levels of inorganic salts, heavy metals, etc.
8. What are the characteristics of diseases caused by water pollution?
Answer: (1) Gradual: All kinds of toxic substances accumulate slowly in the human body until the onset of the disease, because it is not easy to detect for a long time, and it is more concealed.
(2) It is not easy to divide the most toxic organic substances and all heavy metals in the human body can not be decomposed and metabolized, can only stay in the human body for a long time, and constantly accumulate.
(3) easy to accumulate in the body: once the heavy metal enters the body, it combines with human protein to form a compound that is difficult to metabolize.

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Olansi tells you four ways to determine water quality at home!

As mentioned above, food is the first need of people, water is the basic food and water is clean. Because water is very important, we have begun to demand the quality of drinking water. More generally, some people will ask: Is it necessary to install water purifiers?

Water purifier Olansi (2)

In fact, tap water looks clean, but before it comes to household faucets that may contain more impurities, water treatment plants chlorinate, municipal pipelines transport, and even two residential water tanks pass through the next water supply system. Let’s use these simple methods to check the water quality at home, which is beyond imagination.

Check your water quality

1. Look

Fill the water with highly transparent glass to check whether there are floating or precipitated impurities in the water. If there are impurities in the water, excessive drinking can not meet the drinking standard, which means.

You have a yellow layer on the inner wall. Look at the kettle. Look at the common kettles in the house? The explanation of water hardness is too high (and may contain rust) to see that there is no sediment after water shutdown:

Water purifier Olansi (3)

2. Smell

If it picks up the water in the glass, it smells bleach (chlorine), which means there is more residual chlorine in the water.

3. Taste

To taste boiling water, if you feel poisoned, it means that the water is very hard.

4. Feel if the water is sticky and slippery

If you find that the water has a certain viscosity, the result is that when you turn off the tap water, the water has a wire drawing shape. When you wash your hands, it will slide easily, indicating that the water is contaminated by microorganisms.

Water purifier Olansi (4)

You can distinguish water quality by the above four methods. What if the water is polluted? Can you solve the water purifier? I think many people know little about water purifiers.

What is the function of the water purifier?

The water purifier is a device that converts “unclean water” into “relatively clean water”. Its classification can be classified according to its filtration level. Ultrafiltration water purifier and reverse osmosis are more generally classified in the market. Use a water purifier. Water softener

The function of the water purifier is to remove impurities such as bacteria, bacteria, and microorganisms by removing rust, sand, gravel, and residual chlorine, odor, color and pesticides in water. Heavy metals in water.

Water purifier Olansi (5)

Should I use a water purifier?

A water purifier can directly clean tap water, remove the residual chlorine in water, and change the quality of drinking water at home.

Whether you use a water purifier, please check the filter element below and you will find the answer.

Water purifier Olansi (1)

The filter element of the water purifier is like the human kidney. The water quality of the water purifier depends not only on the quality of the filter element but also on whether the filter element is replaced or not. If the filter elements are not replaced for a long time, the water will be blocked, not only the water will be very small, but also the filtering effect will be produced. It can not be fully purified, and purity will naturally decrease.

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