How many potentially recalcitrant bacteria and microorganisms are in tap water?

All kinds of substances in the biological world have caused our current ecological environment, so all things in nature must be indispensable bacteria and microorganisms, of course, the same in the water, tap water may contain some pathogenic microorganisms such as bacteria, viruses, parasites or eggs, etc., in addition to may contain some chemical ingredients harmful to the human body, for everything in the natural water now, we have also tried our best, when drinking these unhygienic raw water, it is easy to get sick. Although the city's tap water is disinfected, it is impossible to be completely assured. In addition, tap water is disinfected with chlorine, and tap water contains chlorine, which is not good for the human body.

With the development of science and technology, water purifiers are more and more appearing in our lives, and the emergence of filters is also a great convenience, but for some stubborn bacteria and microliters. We can't remove it all, many people will think that boiling water can be sterilized, after all, the ointment asks for sterilization, but although there is a certain scientific basis for such a statement, it is not all, on the contrary, if the hot water is boiled for too long, it is likely to cause other germs, which is why we can't recycle boiling, and there will be a lot of bacteria and microorganisms through overnight water, so it is generally not allowed to drink overnight water. <>

But it is also because we know that there are stubborn bacteria and microorganisms, so there is a great sense of health, so that some of the machines that filter water in the TV, we will blindly follow, but in fact, the removal of impurities inside is indeed very clean, but it is also unfavorable to the human body, in the usual tap water, although there are some microorganisms and bacteria, but there are a small number of bacteria and microorganisms that are helpful to the human body, a large number of removal, but harmful to the body, so that it can not play a better role in the human body, which also has the opposite effect. The gains outweigh the losses. <>

There are about 10,000 stubborn bacteria and microorganisms in tap water, and many bacteria live in it, and they must be steamed at high temperatures before they can be drunk!

There are many potential recalcitrant bacteria and microorganisms in tap water, such as E. coli, actinomycetes, sulfur bacteria, nitrifying bacteria, iron bacteria, photosynthetic bacteria, etc.

There are indeed many polluted areas in China's water resources, and there are at least more than 30 kinds of bacteria and microorganisms in tap water according to the survey, but the tap water in our homes is treated, such as bleach, which can kill most of the bacteria, and it can be drunk with confidence after boiling.

There are a variety of microorganisms present in tap water. For example, autotrophic bacteria, sulfur bacteria, nitrifying bacteria, photosynthetic bacteria. Heterotrophic bacteria, actinomycetes, fungi.

Nowadays, there may be some stubborn bacteria and microorganisms such as E. coli in tap water, but after filtering through a household water purifier and boiling tap water, it can meet the drinking standard.

The bacteria that are usually present in water can be broadly divided into three categories:

Bacteria present in natural water. The common ones are Pseudomonas fluorescens and Pseudomonas aeruginosa, which are generally considered to be non-pathogenic to healthy humans.

Soil bacteria. When there is more surface water during flood times or after heavy rains. They do not survive long in water and are easily removed during water treatment. Iron and sulfur bacteria that corrode water pipes also fall into this category.

Gut bacteria. They live in the intestines of warm-blooded animals, so they are abundant in feces. If such bacteria are found in water bodies, they can be considered to have been contaminated with faeces.

Pathogenic intestinal bacteria include Salmonella (typhoid and paratyphoid), Shigella (dysentery) and Vibrio cholerae.

Mainly legionella, E. coli, mold, this is in the tap water, because the tap water has been treated by the water treatment plant, but on the way to the water transportation, some pipes, after a long time, it is easy to breed scale, and scale is the natural hotbed of bacteria and other microorganisms, so it will cause the breeding of some bacteria. I hope my answer is useful to you.

The treatment of tap water often has to go through multiple precipitation and disinfection.

Therefore, the bacterial content in tap water can be said to be very low, because whether it is chlorine, chlorine dioxide or ozone, they are extremely strong oxidants and have great damage to microbial cells.

The type and amount of minerals depends on the source of the tap water, and the treatment of tap water does not include deionization, but multiple precipitation processes can reduce the ion content in the water.

Water with higher hardness contains higher calcium and magnesium ions, and as for the content of harmful heavy metal ions, depending on the environment near the water source, if there are heavy polluting industries such as papermaking and electroplating. Theoretically, these industries are not allowed to be built in water sources, or where there are these industries, they cannot become water sources.

As for the toxic substances you are talking about, it may refer to the chlorine disinfection stage, where fatty acids are oxidized by chlorine to produce some possible carcinogenic compounds, which are extremely low. First, the amount of chlorine gas introduced into the chlorine disinfection stage is not large, and the second is that the content of fatty acids in the water itself is low.

Some. Tap lead water is produced through the purification and disinfection of tap water treatment plants to supply people's daily life and production water, but in the process of conveying to every household, it is inevitable that there will be secondary pollution, so tap water generally needs to be boiled before drinking.

Tap water may contain pathogenic microorganisms such as bacteria, viruses, parasites or eggs, as well as chemicals that are harmful to humans.

China's national standard stipulates that the pH value of water consumption in the future life is within the range.

There are many types of disinfectants used for tap water disinfection, such as chlorine dioxide, bleaching powder, sodium hypochlorite, etc.

Is there any microorganism in ordinary tap water, tap water may contain some pathogenic microorganisms such as bacteria, viruses, parasites or eggs, etc., in addition, it may also contain some chemical ingredients that are harmful to the human body. When drinking this unhygienic raw water, it is easy to get sick. Although the tap water in the city has been disinfected, it is impossible to be completely assured, not to mention that the tap water is disinfected with chlorine, and the tap water contains chlorine, which is not good for the human body.

If you want to drink tap water, you should pay attention to the following 4 points: (1) The first bucket of tap water that flows out in the morning can be used as domestic water, but it is not suitable for drinking. Because this water stays in the water pipes overnight, bacteria may multiply, or a certain amount of metal elements may be dissolved from the water pipes.

2) Boiling water is generally boiled for 3 minutes, and drinking water that has not been boiled or boiled for too long is not good for the body. (3) Drinking water can be left for several hours before boiling (but not more than one day). 4) In the world, the harmful substances of halogenated hydrocarbons in the water can not be completely avoided by chlorine disinfection water, and the body's own detoxification function can prevent the harmful substances with little content.

Those who can afford to consider using a qualified activated carbon purifier to drink tap water more safely.

The bacterial items of drinking water inspection are generally the total number of colonies and total E. coli, and the bacterial examination of drinking water sources also includes fecal coliform items.

Fecal coliform bacteria.

Total coliform bacteria.

Total number of bacteria, total number of colonies.

Heat-resistant coliforms.

Escherichia coli.

Ascaris eggs coliforms.

Total number of colonies. Total number of bacteria.

Ordinary drinking water and tap water generally have harmful bacteria such as E. coli, and now many waterworks are using Xiuba's chlorine dioxide AB agent, which has a good sterilization effect and no residual substances.

Strictly speaking, there are no microorganisms in the disinfected tap water, but after the pipe network is transported, there is no guarantee that there are no microorganisms in the tap water that enters the residents' homes.

There are generally very few fungi because one of the processes in the waterworks is to add a certain amount of bleaching powder, which is to kill E. coli. Plus you cook it and drink it, and there will be no problem.

But now more than 80 percent of China's water sources are heavily polluted, and the pollution here is not related to bacteria, but to chronic carcinogens. Even if the water that is qualified in China is tested in developed countries, it is completely unqualified.

Usually drinking water with bottled pure water, find a better brand, **10 yuan a bucket. However, it should be noted that the bottled pure inlet water should not be opened for more than 15 days to drink, otherwise it is stagnant water and no nutrition, and the drinker should be opened and cleaned once a month.

In tap water that meets national regulations, the bacterial content does not exceed 100 per milliliter. Heating and boiling removes most bacteria and viruses from the water.

The bacterial content of qualified tap water is very low.

Heating and boiling can remove almost all bacteria and viruses.

Bacteria are naturally present in tap water, but viruses are rare, unless the water comes from a polluting source and has not been treated by a waterworks. Heating and boiling at a temperature of up to 100 degrees Celsius, most bacteria cannot survive in this condition, but it is not excluded that a small number of bacteria and its spores can survive. As for the virus, it needs to live in the cell to survive, it can multiply on bacteria, but with the death of bacteria after heating, the virus also dies, and the water after heating and boiling is generally harmless to the human body, and it is hoped that it will be adopted.