Why don t artificial islands use groundwater fresh water?

Artificial islands are islands built by artificial means in relatively shallow sea areas, and artificial islands are located in the sea, and the sea is below, so there are no underground freshwater resources.

The island's fresh water can only be stored by rainfall.

The artificial island is located in the sea, and the sea is below, so there is no underground fresh water resources.

Long Zheng stuffy people Chang Lugong Island.

There is, of course, no groundwater underground.

Artificial islands are free of groundwater. , natural shouting Xunwan Island only has groundwater.

The main reason for this is the artificial pouring of groundwater, which is mainly seawater.

The artificial islands are in the sea, and the sea is all salty seawater, and there are still relatively few artificial islands with underground fresh water. Fresh groundwater has been found on Fiery Cross Island, which was built by China, but the reserves are currently unknown, and it is not allowed to be mined to prevent destructive exploitation. Fiery Cross Island is also the only island in the South China Sea archipelago that has fresh water, except for Taiping Island.

Artificial islands are not naturally formed, there is no fresh water, and if you want to extract groundwater, you have to drill deep into the seabed to extract it, which is difficult to imagine.

Artificial islands are generally found at sea and are saltwater. It is very difficult to lighten it.

First of all, it is impossible to complete the natural water cycle of the island by relying solely on the forces of nature. The specific reasons can be summarized in three points:

1.The amount of water is limited and the capacity is insufficient.

The island is surrounded by the sea on all sides, many islands have no passenger water, water resources are mainly in the groundwater on the island, relative to the island with the mouth, social and economic development, water consumption continues to grow, the island water resources are extremely limited, the land area is narrow, the rain collection area is limited, the water system is not large, and the freshwater resources basically rely on atmospheric rainfall. Due to the low hills, steep slopes and short sources of Qingxiaopin Island, poor water interception conditions and low storage capacity, most of the surface runoff goes directly into the sea.

2.Climate impacts.

Due to the influence of the island climate, spring is the concentrated period of rainfall, and if there are local showers in summer and autumn, especially the appearance of typhoon rain, it is easy to form drought and autumn drought, and autumn is the rainy season, which is easy to form a longer period of dry morning From a professional point of view, I will say two words What is the solution.

3.Ecosystems are fragile.

The natural environment and ecosystem of the island are fragile, so the island freshwater resources are inevitably fragile, the land area of the island is small, the environmental conditions are harsh, the land vegetation is poor and single, and it is vulnerable to damage, and the island is surrounded by the sea on all sides, and is vulnerable to the invasion of marine disasters.

Since we can't do the natural cycle without cost, we can only try our best to achieve low cost - the island water circular economy model.

It can be mainly divided into the following types:

1.Water conservation mode - the implementation of water-saving technology, improve water conservancy engineering facilities, the formulation of water-saving goals and plans, the development, introduction and promotion of water-saving equipment, strengthen the scientific and technological work of water-saving, and eliminate ineffective water supply and water waste;

2.developing local freshwater resource models – building reservoirs, extracting groundwater, harvesting rainwater;

3.continental water diversion model;

4.import virtual water model;

5.Desalination mode.

I won't go into detail about these patterns, so if you're interested, you can check it yourself. In general, each has its own advantages and disadvantages, and it is necessary to implement specific problems. But without exception, a certain amount of cost investment is required. <>

Nowadays, island reclamation in the South China Sea is extremely hot, but there is no natural fresh water. Although there is a net return instrument for Haizhi Shiliang Water, it requires additional energy and the production is limited. The important thing is that the South China Sea is not peaceful, and it would be safer and more important if there was naturally fresh water that did not need energy.

Condensation of temperature differences. A 10 cubic meter FRP tank on the ground is connected to a FRP tank at the bottom of the seawater. When exposed to the sun, a constant temperature difference of 80 degrees Celsius is generated.

The ground tank is filled with seawater, and then the diesel engine is vacuumed. Only a small amount of start-up energy is consumed. Then just sit back and wait for the solar energy and the underwater temperature difference to work.

The steam from the upper tank is constantly condensed in the bottom tank. Then pump it up with a water pump to get it wide. <>

All processes, including evaporation, transpiration, runoff, and condensation, can be achieved without energy consumption, but the amount of fresh water produced by condensation is not comparable to precipitation, and it is far from enough to maintain the demand on the island. To achieve a normal level, either increase the evaporation with energy to increase the water vapor saturation in the condensing system, or use energy to cool down and condense the condensation with condensation, or both. At this time, there are actually good energy options - a nuclear power plant, a small reactor, in the range of ten to one megawatts.

The greatness of nature lies in the fact that although human beings can make poor imitations and surpass nature in some aspects, the self-consistency and balance of the whole system will never be compared with nature. <>

Because under the satellite view, the island itself has water, and then it can create itself, which is the magic of nature, and slowly through its own circulation to produce this kind of fresh water is very magical.

The main reason is that Fiery Cross Island has relatively advanced seawater desalination technology, so the energy source continues to produce fresh water.

Fiery Cross Island, which is in the satellite view, is surrounded by sea water on all sides. However, it is constantly producing its own fresh water because of its own ecosystem.

According to common sense, there will be no freshwater resources in the vicinity of artificial islands, and this situation is mainly due to "freshwater lenses". Most of the island's groundwater floats on top of the saltwater, like a "transparent mirror". Because there is a large difference in the density of brackish and fresh water, there is a theory of underground freshwater resources in the vicinity of the island.

In addition, the reason for the emergence of freshwater resources is also due to the high temperature environment in which seawater is distilled to form fresh water and stored underground. Secondly, it has a tropical climate and has a lot of rain, so when it rains, it will also penetrate into the lower layers of the earth's surface.

The so-called artificial island found scarce resources, in fact, refers to the new artificial island of Fiery Cross Island found some geological conditions that can isolate the seawater, this geological conditions will be able to provide a steady stream of fresh water resources for Fiery Cross Island, which solves a major dilemma of artificial islands in China, which is the so-called solution to scarce resources. But there are no huge gas mines found on this island, so there is no huge benefit. <>

In recent years, with the development of China's economic strength, it can be said that there are some artificial island plans have been put on the agenda, we have built a lot of artificial islands in recent years, but to say that there are relatively few complete facilities, Fiery Cross Island is one of the more famous artificial islands. Although the artificial island is only one square kilometer, it has a complete infrastructure and may even become a distribution center for goods in the future, which shows the importance of Fiery Cross Island. <>

However, the biggest problem facing artificial islands is actually the problem of providing fresh water resources, if our fresh water resources are transported from the mainland to Fiery Cross Island, then it will undoubtedly cause a great waste of our resources, and the cost is also extremely high, so some experts want to make a place to provide fresh water on Fiery Cross Island.

In the end, after unremitting efforts, the experts found that the geographical location of Fiery Cross Island resembled the principle of a convex lens, and that there was actually a barrier around Fiery Cross Island, separating seawater from fresh water. <>

Personally, I don't think I found the situation on this island, but it is also a good thing to solve the problem of freshwater resources, after all, sometimes the biggest problem of artificial islands is the problem of freshwater resources, and the problem of freshwater resources is solved, everything on the artificial island can run as scheduled, and can create huge economic benefits.

Natural gas plays a great role in people's lives, such as stir-frying, bathing, etc., but natural gas is a non-renewable resource. The emergence of natural gas on artificial islands has greatly alleviated the shortage of resources.

Natural gas can be used to generate electricity to alleviate the shortage of other energy sources, and natural gas pollution is relatively less, which can reduce environmental pollution and reduce economic costs.

Natural gas as a power generation, heating fuel is significantly better than coal, oil and other traditional fossil energy, gas turbine has many advantages, such as high energy conversion efficiency, small footprint, small number of labor, short construction period, fast start and stop speed, strong peak regulation capacity, flexible and simple operation, large single capacity, safe and stable operation, low pollutant and carbon dioxide emissions, and less affected by geographical location and natural environment.

1.Natural gas power generation has an effective way to alleviate energy shortage, reduce the proportion of coal-fired power generation, and reduce environmental pollution.

2. Natural gas chemical industry, natural gas is the best raw material for the manufacture of nitrogen fertilizer, which has the characteristics of low investment, low cost and less pollution. Natural gas accounts for about 80% of the raw materials for nitrogen fertilizer production on average in the world.

3. City gas business, especially residential fuel. With the improvement of people's living standards and the enhancement of environmental awareness, the demand for natural gas in most cities has increased significantly. The economic benefits of natural gas as a domestic fuel are also greater than those of industrial fuels.

4. Compressed natural gas vehicles, which replace automobile oil with natural gas, have the advantages of low quality, less pollution and safety.

All you see is the sea level, with a stepped waterproof levee on the bottom of the sea, and as you can imagine, it's something of the same nature as the shallow reefs in the Maldives).

By the time the last level of the dam (two meters high and two meters wide above the sea) was reached, the energy had been reduced to 12% of its original level

It's safe, and it also protects the island's underwater ecology.

Because climatologists have improved the record of high tides for hundreds of years, what height usually rises to, what height the highest rise, and when the island is built, it is enough to be above this height.

This issue has long been taken into account during the construction of the island.

It looks closer, but there is actually a distance. Most of the images you look at are satellite images, and the height is difficult to judge.