Israel's "water secret" "biomass carrier" to purify sewage
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- Time of issue:2018-10-27 17:58
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(Summary description)For the use of water, Israel can be said to have done its utmost, and sewage is another water resource, and the Israelis will not be neglected. In a sewage treatment plant called Aqwise, the reporter
Israel's "water secret" "biomass carrier" to purify sewage
(Summary description)For the use of water, Israel can be said to have done its utmost, and sewage is another water resource, and the Israelis will not be neglected. In a sewage treatment plant called Aqwise, the reporter
- Categories:Industry News
- Author:
- Origin:
- Time of issue:2018-10-27 17:58
- Views:
Information
For the use of water, Israel can be said to have done its utmost, and sewage is another water resource, and the Israelis will not be neglected. In a sewage treatment plant called Aqwise, the reporter saw the superior ability of Israelis to incorporate technology into the details.
The sewage treatment plant is a one and a half hour drive from Tel Aviv, passing through a green vegetable field, where the sewage treatment plant is located. Looking at it, there is not much difference between the sewage treatment plant and the reporter's visit to Beijing. Some steps related to sewage treatment such as flocculation and sedimentation are also available here. However, the staff of the water plant pointed at the hand, and the small plastic particles tumbling in a pool of sewage caused the attention of the reporters.
Thousands of small plastic particles that tumbling with water waves in the lagoon are the "core technology" of this sewage treatment plant. At the side of a circular sewage sedimentation tank, the staff told reporters that they are using the latest biological wastewater treatment technology. They developed a small particle called a "biomass carrier", which is a circular plastic structure, each of which has a size of a scorpion, and has a large surface area because it is filled with voids.
In the lagoon, this small particle will provide more room for bacteria that decompose harmful substances in the sewage to grow and multiply to consume more bio-waste. Next to a sewage mixing tank, the staff used the net to pick up some small particles. These small blue and green particles, under the adhesion of bacteria, all turned into dark colors.
Surprisingly, these treated sewage is the main source of water for the nearby vegetable fields. The reporter was taken to the vegetable fields that passed through the sewage plant. In this green farmland, carrots, lettuce and potatoes grew very strong. A farmer who took care of the land told the reporter, "The water source for this land is all from the sewage treated by the sewage treatment plant. The water source is very safe. We usually eat the crops produced in this field."
The treated medium water not only nourishes the land, but also supplies a large area of other land. “The treated water, although not meeting drinking standards, is sufficient for agricultural irrigation.” The staff said that the reclaimed water was introduced into reservoirs for agricultural irrigation in different regions through designated water pipelines. The pumping station control center timely allocates the water output of each reservoir according to the demand for agricultural water in various places and the stock of water in each reservoir. In his view, the difference between this new technology and traditional sewage treatment is that it occupies less space and does not pollute the environment.
At present, Israel's wastewater recycling is second to none in the world, and 70% of urban and industrial wastewater is recycled to irrigated farmland in the arid and desert regions of southern Israel, which is the third largest in Spain in the world. Times.
In addition to the treatment of sewage, Israel's management of the reservoir is also quite high-tech film taste. At Israel's National Water Company, there is a huge artificial lake, which is called the “Israel National Water Strategic Reserve Base”. In special circumstances, this war reserve reservoir can guarantee the water for all seven days of Israeli nationals. Looking from a distance, this reservoir is like an artificial lake in a park, but there are barbed wire around it, and soldiers with guns around it are standing guard.
After review and release, the reporter came to the "command tower" of the reservoir. Here, a row of computers, three or two engineers, only need to use their fingers, can observe the water quality, supply situation, reservoir security and other information of the entire Israel reservoir through the network, and is a 24-hour real-time monitoring. Not only can we observe even the microscopic conditions of each water pipeline, but we can also grasp the water network of Israel as a whole. According to reports, as long as the command tower issued instructions, it can even remotely control the Sea of Galilee, which is at the northernmost end of the country. How long does it take to open the gate, and how many cubic meters of water are discharged, all in the control of this small control tower.
After the trip to Israel, the reporters were amazed at their ubiquitous water technology. Under the harsh natural conditions, Israelis use their wisdom and rely on high-tech means to make themselves a country without water shortage in the desert. These technologies and experiences are worthy of introduction and reference.
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