Is Israel s freshwater technology reverse osmosis and what is reverse osmosis?

It is reverse osmosis technology.

Israel is located in the Mediterranean region, where most of the country is desert and rainfall is scarce, which also leads to a severe shortage of fresh water. Israel's development is constrained by the scarcity of freshwater resources, and the agriculture-related economy has not been fully developed. In order to no longer be limited by freshwater resources, Israel began to attack, and desalination is an important strategic strategy they have found to improve the ecological environment and obtain freshwater resources.

So far, there are only two ways to desalinate seawater, one is distillation and the other is using reverse osmosis devices. But no matter which method is used, the hardest part is essentially how to extract the salt from the seawater. Distillation works by heating seawater so that the resulting water vapour rises and eventually condenses in pipes, where it is collected in its entirety.

The working principle of the reverse osmosis device is to use the reverse osmosis membrane and the difference in pressure on both sides of the reverse osmosis membrane to make only water molecules pass through the reverse osmosis membrane in the seawater on one side of the reverse osmosis membrane. It is understood that the current equipment used in Israel is mainly reverse osmosis membrane equipment, and Israel almost has the world's top desalination technology.

In Israel's Tel Aviv region, there is a large desalination plant that pumps seawater from the Mediterranean Sea and simply filters out large particulate matter from the water through sand, which is then sent to a desalination plant. The seawater then proceeds to desalination, which works by pushing seawater at high pressure into microporous membranes through which only water molecules can pass through, while larger salt molecules cannot pass through. However, the filtration effect of reverse osmosis membranes is very good, and when desalination of seawater, microorganisms and other impurities in seawater will quickly block the micropores on the membrane.

Therefore, cleaning the substances on the reverse osmosis membrane has been bothering scientists for a long time. Scientists in Israel have developed a new system that uses empty lava to trap microorganisms before desalination, allowing the initial purification of seawater through membranes.

Israel's freshwater technology is reverse osmosis. Reverse osmosis is a membrane separation operation that uses the pressure difference as a driving force to separate a solvent from a solution. Separation, extraction, purification and concentration can be achieved through reverse osmosis.

Israel's freshwater technology is reverse osmosis, reverse osmosis refers to the extraction of cheap fresh water from seawater through technical means for production and living, this technology is currently widely used in some countries with scarce freshwater resources but abundant seawater.

At present, there are five desalination plants in Israel, which use reverse osmosis technology to desalinate seawater. Reverse osmosis technology is reverse osmosis technology, which is divided into two with a semi-permeable membrane barrier container that only water molecules can penetrate, and pure water and brine of the same height are injected into both sides of the semi-permeable membrane, and the pure water liquid level decreases and the brine liquid level rises after a period of time under the action of semi-permeable membrane filtration.

What is Reverse Osmosis? Since the 60s of the 20th century, reverse osmosis desalination has become an important way to obtain drinking water and an effective way to solve the shortage of freshwater resources. At present, reverse osmosis desalination technology is mainly used in two aspects:

Desalination of seawater and desalination of brackish water.

About 30% of the world's seawater desalination plants are realized by reverse osmosis technology, through which more than 99% of the salt ions in seawater can be removed through reverse osmosis membranes to obtain drinkable fresh water. In 2005, Ashkelon built the world's largest reverse osmosis desalination plant, which produced 15% of Israel's total water demand and produced about US$·m-3. China's largest reverse osmosis desalination station is located in Changhai County, Dalian.

Brackish water is widely distributed in northern China, containing more salt ions, and can be desalination through reverse osmosis technology to meet the drinking water standard. The demonstration project of Malian River Basin uses the brackish water resources of the upper reaches of the Malian River to establish a 1000m3·d-1 brackish water desalination project by using reverse osmosis membrane technology, and the effluent quality meets the national drinking water hygiene standards, effectively solving the drinking water problem of 50,000 residents in the urban area of Huanxian County. He Xuwen, Yao Yongyi, Sun Wei and others have carried out experimental research on reverse osmosis treatment of brackish water, and the systematic desalination rate is 95%, and the effluent quality is better than the national drinking water standard.

It seems that only the Communication University of China and Beihang University have them in the country.

This is nationally certified, and the others are all grass platform teams built by themselves, but game planning majors are not recommended.

If the landlord wants to do game planning, he can take the computer major in some colleges, so it is easier to enter the industry.

The planning industry is divided into several parts, and most of the numerical copywriting systems require logical thinking and mathematical ability.

If you go up, the computer is not good.

Therefore, the Department of Computer Science is recommended.

You can't apply for liberal arts schools, but you can apply for majors in literature and history.

If you are a science student, when you register for the college entrance examination, you will naturally apply for the "science, engineering, agriculture and medicine", and you can only fill in the science colleges and universities when you fill in the volunteers, but the current university filial piety is basically both liberal arts and sciences, for example, in addition to the traditional science and engineering, we D University also has foreign languages, economics and management, art transmission, politics and law and other partial or pure literature colleges.

When applying for the volunteer examination, you can pay attention to the enrollment plan of Yiqiao Bu Daxia School, which is a unified book issued by the Municipal Education Commission in our city. The above is a detailed record of the plan of recruiting colleges and universities in our city in that year. If you like the liberal arts major, you can fill in the recruitment of science students.

Many of the girls in my class went to college in liberal arts.

At least not from undergraduate to doctoral level.

There may be some software engineering bosses who set this direction, you can go to the research office to contact it.

I don't have this major.,Now game programming is all C language.,Images are rendered in software.。 I also learned it in my country.

The total score of the college entrance examination is 750 points (150 points in Chinese, 150 points in mathematics, 150 points in foreign language, 300 points in comprehensive liberal arts and comprehensive science).

The subjects and scores of each province are different.

Ningxia Hui Autonomous Region Chinese (120 points), Mathematics (120 points), English (120 points), Physics (85 points), Chemistry (75 points), Sipin (70 points), History, Geography, Biology (30 points), Physical Education (50 points), Physical and Chemical Biology Experiments (10 points), Comprehensive Quality (25 points), Spoken English (10 points), Microcomputer (15 points) 730 points.

Henan Province Chinese (120), Mathematics (120), English (120), Physics (70), Chemistry (50), Politics (Open Book) (70), History (Open Book) (50), Physical Education (50), Experimental Test (30) 680 points.

The landlord can input his own information into the study abroad volunteer reference system, and the system will match the cases of classmates similar to you according to your situation, see how others choose the school or major, and you can also filter according to the study abroad goals, and see what background your target colleges and majors have (how many points in language scores, what is the school background, what major, how much GPA, etc.) students have applied, and thus compare their own situation, so that you can have a clear understanding.

If you want to study abroad and don't know how to choose a school, you can give yourself a position through this study abroad positioning system, enter your GPA, major, language scores, school background, etc., and the system will automatically match the cases of classmates in the database who are similar to you, you can see which schools they have applied to, and understand the TA's handling agency and final admission results, so as to provide reference for your study abroad plan. Combined with their own situation, they can also have a general positioning. You can also check according to the study abroad goals, and see what backgrounds (how many points in language scores, what is the school background, what major, how much GPA is the GPA, etc.) of your target universities and majors, and then compare your own situation and formulate general goals and directions.

It is recommended that it is best not to take the art major of a science and engineering university, because the university is mainly science and engineering, and the recruitment of art is just to feel that the art tuition fee is high to make some money, and art is always an accessory in this kind of school, and if the enrollment and employment situation is not satisfactory in two years, it is possible to stop recruiting the major. And if you are admitted, you will not feel the atmosphere of art at all, and the employment is not competitive. It's embarrassing.

It is recommended to go to the Academy of Fine Arts or a comprehensive university with a focus on liberal arts.