Every glass of water you drink is a history of science and technology

In order to drink a good sip of water, for thousands of years, human beings have broken their hearts.

In the beginning, human ancestors could only drink water from rivers and lakes. As for what is in the water, what will happen if it is drunk, everything is up to fate.

In prehistoric times, Chinese ancestors mastered the method of boiling water with pottery to keep away pathogenic bacteria in raw water.

In the farming era of 5000 BC, people used groundwater sinking to obtain a cleaner and safer water source.

Hemudu water well site (restoration), image source: Wikipedia

In 300 BC, the ancient Romans pushed the water supply project to its peak, and today's tap water systems all over the world were born here.

At the beginning of the 20th century, people began to chlorinate and disinfect tap water, and the threat of water-borne infectious diseases such as typhoid fever and cholera was greatly curbed.

In 1988, France built the world's first Amoncourt water plant using ultrafiltration technology, and the third-generation water purification technology with membrane technology as the core was applied.

In the same year, China's first water purifier was born in Angel, which changed the way Chinese people drink water. Since then, Angel has been deeply involved in the field of drinking water purification for 33 years, leaving a strong mark in the history of human drinking water black technology.

Water purification technology has evolved in an all-round way, and Angel Black Technology surpasses the inventor

On March 10, Angel, known as "Water Purifier Dyson", held an online AR conference. Let us see another evolution of water purification black technology.

Angel released the self-developed long-acting reverse osmosis membrane 2.0 on the same day, which solved the three major headaches of ordinary reverse osmosis membranes.

With over reverse osmosis membrane water purifier knows, filter life is a big problem, for the core cost Routeng people. Why is the filter element so unusable? This, we must start from its principle.

The pore size of the reverse osmosis membrane is about 0.0001 micron, which is only one millionth of the thickness of a human hair. In contrast, the diameter of bacteria is about 0.2-1 microns, viruses are about 0.02-0.4 microns, and heavy metal particles are about 0.005 microns. The reverse osmosis membrane can completely isolate them.

However, with such a fine degree of filtration, it is naturally easy to block, which results in a limited life of the filter element, which requires replacement at any time, and a higher proportion of waste water is generated, which virtually increases the actual water cost.

The long-acting reverse osmosis filter element 2.0 released by Angell has changed the horizontal water outlet method of ordinary membranes. Through the original non-dead flow channel rolling method, spiral water outlet is realized, the water flow speed becomes faster, and the flushing speed of the membrane surface is higher than that of ordinary membranes. 5 times.

Under the scouring of high-speed water flow, bacteria and impurities in the water are difficult to deposit on the surface of the membrane, which makes it easier to avoid the problem of clogging of the filter element by impurities and foreign matter, and the service life of the long-term reverse osmosis membrane filter element is increased by 50% compared with ordinary membranes. , Up to 5 years . The life of the filter element is longer, and the cost of replacing the element is naturally saved.

Another big issue is the waste water ratio.

Tap water is pressurized to pass through the reverse osmosis membrane and become two parts of purified water and wastewater. Only purified water is drinkable. As the name implies, the higher the wastewater ratio, the greater the waste of water resources. With the continuous improvement of the technical level, the wastewater ratio of the water purifier has gradually changed from 1 cup of clean water: 3 cups of wastewater to 1 cup of clean water: 1 cup of wastewater.

In terms of saving water, Angel Long-acting reverse osmosis membrane 2.0 goes a step further.

It narrows the inlet flow channel to form a vortex pressurization, so that more pure water can be leaked out under strong water pressure. The flow channel rolling without dead ends increases the utilization efficiency of the diaphragm and also makes the water production higher. According to calculations, the water efficiency of Angel long-acting reverse osmosis membrane 2.0 is 75%, which is equivalent to producing three cups of good water while only producing one cup of wastewater. This indicator not only exceeds the national first-level water efficiency by 60%, and is more than half the water efficiency of ordinary membranes at 50%.

In addition to the life of the filter element and the waste water ratio, the safety of the filter element itself is also the focus of attention.

The structure of the reverse osmosis membrane determines that in order to isolate the purified water from the raw water, a material must be used to seal the filter element. Ordinary reverse osmosis membranes and even well-known foreign filter elements are made of polyamide, which is what we commonly call nylon. The filter element of this material has been repeatedly exposed to the detection of volatile phenolic substances in the sanitary test, which also makes people worry about its safety.

Angel long-acting reverse osmosis membrane 2.0 is coated with phenol-free polymer liquid silicone material. This baby food grade material is enough to reduce our anxiety about safety.

There are thousands of brands of water purifiers in China, but there are very few manufacturers who master reverse osmosis membrane technology, so that Wang Xiaomao, an associate professor at the Drinking Water Safety Teaching and Research Institute of the School of Environment, Tsinghua University, said, "China’s water purification membrane technology is like a chip. It has been monopolized by foreign companies for a long time."

The long-acting reverse osmosis membrane 2.0 technology developed by Angel last 3 years, costing 150 million and more than 500 experts, not only broke this monopoly, but also surpassed foreign countries in some technical indicators. Its desalination rate reaches 94%, while the desalination rate of well-known foreign brands is 86%. In addition, its 96 liters of water per hour is also higher than the 91 liters of foreign brands.

Aerospace-grade pure water comes from this black water purification technology

On the same day, Angel also released another aerospace black technology- nano-whisker antibacterial technology.

It is understood that the nano-whisker antibacterial technology is currently the only antibacterial material used in manned spaceflight. It has been selected into the "Lunar Exploration Project" and has become a space water purification technology.

Angel applied the results of this research to civilian water purification products, which means that you can drink the water that the astronauts drink at home.

Activated carbon is a very important material in water purifiers. Its strength is strong adsorption capacity, but the porous structure of activated carbon makes it extremely easy to breed bacteria. At a room temperature of 25 degrees, one bacteria in the activated carbon gap can multiply to more than 4000 in four days. If you don't do any treatment, drinking water is just drinking fungus soup.

Activated carbon under the electron microscope

To this problem, the traditional solution is to use silver-loaded activated carbon, relying on silver ions to inhibit bacterial growth. In this way, silver ions will inevitably cause pollution to the purified water.

Angel nanowhiskers bacteriostatic activated carbon using physical means, it relies on the cell wall structure of the four-pin stereo punctured to achieve bacterial inhibition rate of 99.99%, allowed to stand for 72 hours and filtered water is still able to effectively antimicrobial. In addition, this method is safer to the human body than the traditional silver ion antibacterial.

About 30% of the water we consume in our daily life comes from direct drinking, and the remaining 70% comes from the water contained in other foods. If you only focus on the quality of drinking water, only 30% of the problem will be solved . When you use tap water to wash rice, vegetables, fruits, and even cups, water safety issues will reappear. However, most of the water purifiers on the market have only a single faucet, and the water flow is small, which cannot meet the needs of washing rice and vegetables, but wastes time.

Another pioneering technology of Angel- AFC composite filter element was born to solve this problem. This kind of filter element has stronger adsorption capacity than other activated carbons, and reaches a water output of 10 liters per minute, which is equivalent to the output of tap water. It not only solves the safety of drinking water, but also filters out residual chlorine, silt, rust, antibiotics and other substances to protect The health of water for washing rice and vegetables.

Angel's 33-year road to black technology

Behind Angel Black Technology is its long-term attention and investment in research and development.

Since the creation of China's first water purifier in 1988, Angel has been deeply involved in the field of water purification for 33 years. In these 33 years, Angel has obtained a total of 768 patents each year, established 4 water quality laboratories and 3000 water quality testing points across the country, and participated in the formulation of 14 national and industry standards.

This allows Angel to gain high recognition from the industry and the market. Angel's water dispenser has ranked first in sales in the country for 11 consecutive years. Among China's top ten real estate developers, seven companies including Vanke, Country Garden, Greenland and Xincheng are Angel's strategic partners. The drinking water equipment at Beijing Daxing International Airport and Shenzhen Baoan Airport are also supplied by Angel. In 2020, Angel will become a supplier of special water purification equipment for top 100 hospitals such as Henan Provincial Hospital, Wuhan University Zhongnan Hospital, and Wuhan Union Hospital.

In 2020, Angeer invested 5.168 billion yuan to build an environmental science and technology smart park in Shaoxing, Zhejiang .

The park covers an area of ​​more than 600,000 square meters and is currently the world's largest water purification industrial park. Nine functional sectors, including Angel Environmental Technology Research Institute, High-end Drinking Water Equipment Industry Base, and Global R&D Headquarters, are all set up in this park. It may be a black technology engine that Angel created for himself. Angel predicts that the park can achieve an annual output of 10 million units of clean drinking water products. In Angel, the largest production base and core R&D base in East China, we may be able to see the birth of more black technology for clean drinking water.

Starting from the water in lakes and rivers, drinking water has gone through rounds of evolution before it becomes today’s cup of clean water. And every glass of water we drink is filled with the history of black water purification technology written by mankind for thousands of years.

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