How advanced is the water cycle in Asian Games venues, where "water users" have transformed into "water-saving benchmarks" and become internet famous?
The Hangzhou Asian Games will open on September 23rd. The Hangzhou Asian Games is hosted by Hangzhou as the host city, with Ningbo, Wenzhou, Huzhou, Shaoxing, and Jinhua as the five co hosting cities, jointly forming the six major competition areas of this year's Asian Games, including 56 competition venues. Among them, there are 12 new venues, 26 renovated venues, 9 continuing venues, and 9 temporary venues. There are also 31 training venues, 1 Asian Games village, and 5 Asian Games sub villages.
Starting today, the CCTV reporter will take you to visit the venues of the Hangzhou Asian Games and experience the "green, intelligent, thrifty, and civilized" Hangzhou Asian Games style together. Today, we first walked into the swimming pool of Hangzhou Olympic Sports Center. It, together with the Hangzhou Olympic Sports Center Gymnasium, is known as the "Butterfly Transformation" Twin Gymnasium. Looking down from the air, the two pavilions are like a pair of wings spread out by butterflies, lifelike.
During the Hangzhou Asian Games, the Olympic Sports Center Swimming Pool will hold swimming, diving, and synchronized swimming competitions, generating a total of 53 gold medals, which can definitely be called a "gold medal powerhouse". In addition to gold medals, the water treatment system hidden underground in the swimming pool also has a lot of gold content. Next, we will follow the reporter's camera to take a look.
At present, the warm-up pool, competition pool, and jumping pool in the swimming pool of Hangzhou Olympic Sports Center have all completed water storage according to international competition standards, with a storage capacity of 10000 tons, making it a true water user. However, this place has now become a recognized "water-saving benchmark" in the Asian Games venues.
![How advanced is the water cycle in Asian Games venues, where "water users" have transformed into "water-saving benchmarks" and become internet famous?](https://a5qu.com/upload/images/e8b15465a567fbb07455e368d3f04c05.png)
CCTV reporter Huang Da: We are now by the swimming pool of this Asian Games, and through the lens, you can see that the transparency of the entire pool water is very high. According to the staff, the pool water here can maintain international competition standards throughout the year and even reach drinking level. To maintain such water quality, according to the experience of similar venues, the water in the swimming pool needs to be changed once a week. However, in the Olympic Center Swimming Pool, the water here can be kept unchanged throughout the year. The mystery lies in a 24-hour uninterrupted water circulation system. We are now at the bottom of the swimming pool, and the more than 10 large cans around me constitute the filtration, disinfection, and organic matter decomposition system of the swimming pool. If we compare a swimming pool to a human body, where we are now is equivalent to its kidneys. The water that comes here through the outlet of the swimming pool wall will pass through seven gates here. This is the first level, the hair collector. As the name suggests, large impurities like hair will be filtered out in the bucket in front of us. The second level is the diatomaceous earth filter tank, which contains 310 filter rods. The rods adsorb diatomaceous earth with a touch finer than flour. The combination of the two can make the filtration accuracy fine to 1-2 microns. Suspended solids in water that cannot be seen by the naked eye, as well as parasites that cannot be killed by conventional disinfection, can be filtered out in this tank.
Afterwards, the water will be disinfected through an ozone filtration tank and then through a urea decomposition tank to remove residual sweat and other components from the water. Before returning to the swimming pool, the water will also pass through devices such as automatic heaters, dynamic water quality monitoring equipment, and sodium hypochlorite generators. The process of round-trip swimming in this way continues every minute and second during non competitive periods.
Fang Tao, the operation supervisor of the swimming pool water treatment equipment at the Hangzhou Olympic Sports Center Swimming Pool: Through this system, it seems that our swimming pool does not change water, but in fact, it is constantly circulating, updating, and treating to achieve a freshness in the pool water.
Through mobile terminals, personnel can access water quality data and other information at any time on their mobile phones. At the same time, they can also control the filtering equipment on and off based on the real-time situation of water quality on the mobile end. According to venue staff, with this filtration system, the venue can save 90000 tons of water annually, which is equivalent to providing water consumption for 4000 people per year.
![How advanced is the water cycle in Asian Games venues, where "water users" have transformed into "water-saving benchmarks" and become internet famous?](https://a5qu.com/upload/images/8a1b0177ccb740b7d9ff72dbba4c7352.png)
CCTV reporter Huang Da: Walking through the Hangzhou Olympic Sports Center Gymnasium and Swimming Pool, we see not only buildings facing the future, but also vivid practices of frugal hosting of the Asian Games. Through forward-looking green, low-carbon, environmentally friendly, energy-saving, and water-saving design and construction concepts, the buildings here can achieve an annual energy efficiency of over 60% compared to ordinary buildings. This year's Asian Games has a distinct "green" background because of the practical actions of promoting energy conservation through intelligence.