The reasons are:
Many tap water pipes are made of steel pipes or cast iron pipes to carry water. Over time, the interior walls of iron pipes rust and develop scale. , and the water will flow normally after the water stops, the pressure in the pipeline will decrease when the water returns, the pressure will suddenly increase, which will remove rust and scale on the pipe wall, causing l 'water. leak. It's very cloudy at first, but gets better after a while. The scale and rust are all washed away and the water becomes clear.
The reasons for the water outage are:
The water pipe is leaking and needs to be repaired.
The water station is regularly maintained.
The aquatic plant lacks water.
Power outage at pressurization station.
The pressure pump of the pressure station is defective.
Why is there a briefe turbidity before the water boils?
The water of the Yangtze River has become clearer, and it does have a certain connection with the Yangtze River dams, but it is not a single reason. There are other reasons. /strong>First, let's talk about why the water is cloudy. The reason why the water of the Yangtze River is cloudy is because it contains a lot of sediment. the amount of sediment can be reduced and the water will no longer become cloudy.
The Three Gorges Dam on the Yangtze River plays a role in sediment interception, which means that the amount of sediment flowing downstream is not that large, so the Natural water appears less cloudy and sediments roll around in it. the river, drifting with the current, so it seems murky. If there is a water storage location where sediment can settle, it will naturally not flow downstream. However, the Tro damis Gorges on the Yangtze River plays such an interception role, allowing a large amount of sediment to be deposited into the Three Gorges Dam, so the Yangtze River water we see is much clearer.
Another reason is that in the middle and upper reaches of the Yangtze River, we have taken many measures to prevent soil erosion, planting trees and berms, etc. , who also achieved remarkable results. Thus, the amount of sediment flowing into the river is reduced and the river water naturally becomes clearer. In addition, the upper reaches of the Yangtze River do not actually have a large rainfall area, and the upper reaches of the Yangtze River have not experienced major heavy rains in recent years, so there is no large amount of sediment that rushes into the river. making the river water cloudy.
Another reason is that the constructionn of the dam changed the flow of water. A very simple principle is that the faster the water flows, the more sediment can be carried away after the water. the flow decreases, the sediments will no longer roll in the river. And we know that the construction of the dam played a role in intercepting the flow of water, making the water of the Yangtze River less turbulent. the water became much clearer.
Since there are many ions in water, such as magnesium ions, calcium ions, etc., these ions are easily generated when water is about to boil because there are carbonic acid and ions in the water. Magnesium carbonate, calcium carbonate and other compounds, these are generally. It is insoluble in water, but as the water continues to heat, there are also hydrogen ions in the water, which immediately react to form magnesium bicarbonate and calcium bicarbonate. These are soluble in eau, so that the water becomes clear again. As the water temperature drops, it continues to rise and, as you can see, it becomes cloudy again. Ultimately, calcium carbonate, magnesium carbonate and other compounds that are not easily soluble in water are what we have. call scale, rushed.