Chapter 583: Tang River Governance Live Broadcast (5)
You must know that it is not just ordinary netizens who are watching this water control activity at this moment.
Because this water control project is aimed at an inferior Class V water body that has been polluted for decades, and the total length of the Tang River system has exceeded 1,000 kilometers.
Once this length of polluted water system is successfully treated, then this case of using [sewage weed] to treat river water system can be naturally promoted to the whole of China and even the world.
Therefore, when the major popular headlines were pushing this unprecedented river management activity, water conservancy and environmental protection experts from all over China, as well as staff from local water conservancy bureaus, participated in the live broadcast.
"Purifying the sewage to the point where it can be drunk in just 30 minutes?"
"If this kind of [sewage weed] can be promoted in our side, then the treatment plan for several stubbornly polluted rivers in the county will be in place!"
"Yes, the most important thing is that this kind of [sewage weed] can not only purify water, but also have an unexpected reinforcement effect on the silt in the water body. ”
"If the silt at the bottom of the riverbed can be condensed into plates like in the live broadcast screen, then the traditional dredging method will have to say goodbye to the historical stage. ”
The traditional dredging method in the mouth of these experts and scholars is actually the most common river treatment and dredging method in China, which is divided into three steps:
The first step, called a "cofferdam", uses a method of stacking bagged sand to cast a temporary embankment upstream and downstream of the river that needs to be cleaned to cut off the river flow.
The second step is called "pumping", as the name suggests, the use of high-power sewage pumps to completely drain the severed river sewage, so that the silt at the bottom of the riverbed is completely exposed for subsequent cleanup.
The third step is "cleaning and transfer", using a special suction pump to pump out the silt on the surface of the riverbed, and then using large tankers to transport the silt to a designated place for stacking.
Of course, due to the high cost of such special sewage suction pumps, many places have not been able to spend a lot of money on the introduction of such dredging equipment.
Most of the rivers can only be relegated to more backward mechanical operation methods. That is, we often use excavators and muck trucks to clean and transfer the sludge.
Of course, some rivers are narrow and the river is not so deep, and most of them do not need to carry out "cofferdams" to build temporary broken dams.
In many places, excavators are sent directly into the water, digging indiscriminately into the bottom of the riverbed, and then throwing the silt onto the hull of a ship such as a sand carrier for silt transfer.
It's just that this simple and crude way of operation brings serious secondary pollution.
In the process of transportation, it is inevitable that the liquid sludge will leak and be left behind.
If the tanker truck and sewage carrier for transshipment are not airtight, it is almost all the way, and the sludge has to be sprinkled all the way!
In addition, the bucket of the excavator is half leaked for the liquid silt, and the operation efficiency can be said to be outrageously low.
So much so that this traditional dredging method has been promoted in China for decades, and there have been no particularly good cases of river management until now.
But it can't be helped!
Who let Huaguo pollute the water system too much?
If other high-tech dredging methods are used, the amount of money needed to clean up the water will be lost.
Although China has paid more and more attention to environmental protection in recent years, if we want to completely eliminate this traditional dredging method, we must find an effective and feasible alternative, right?
However, no matter how many experts and scholars study and plan, they cannot come up with a more effective follow-up plan than the traditional dredging method, which makes this rough and bold traditional dredging method rampant in China for decades.
Of course, it's not just Huaguo who can't do anything about this kind of river silt!
Even internationally, there is no efficient and feasible dredging technology researched so far.
Take the Thames River in England, for example, the mother river of England that originally flowed through the capital Langton, but in the 19th century, it was no better than the Tang River in front of us.
A large amount of industrial wastewater and domestic sewage are discharged directly into the Thames River without treatment, and the garbage along the coast is piled up at will, and the stench is so smoky that the Queen of England almost loses her breath.
The English government has no choice but to invest a lot of money in river management.
As for their governance methods, they are also quite rude!
Every few kilometers, a small sewage treatment plant is set up next to the river.
Boy!
A total of 402 kilometers of river channels, in the end, hundreds of sewage treatment plants were built in one go, directly according to the method of quantitative changes causing qualitative changes, the Thames sewage problem was completely solved.
Unfortunately, the sewage problem has been solved, but there is still not much progress in the silt underneath.
Even in the 21st century, you only need to take a trip to Langdon to find that the surface of the Thames River looks like a dark gray color from afar, and there is no clarity or greenery that the river should have.
In the end, the English government is not going to invest money in the mud.
The method of changing cages for birds was directly applied to dredging, and a large amount of silt from the bottom of the river was transferred and discarded into the ocean by boat, which made the Thames look a little "clean".
Of course, people can't manage a river with the power of the whole country!
According to England's management idea, building a sewage treatment plant every few kilometers is almost unrealistic for such a dense water network in China.
Take the Tang River in front of us as an example, the total length of more than 1,100 kilometers of the Tang River system, if the English method is used, wouldn't it be necessary to build thousands of small sewage treatment plants?
If this is the case, then the people in Wenshi and Ruicheng don't have to do anything, and they all go to work at the sewage treatment plant?
Besides, even if the sewage is cured, what will happen to the silt in the Tang River?
You can't follow England's example and dump it all into the sea, right?
The workload of this sea alone is enough for the staff of the environmental protection bureaus and water conservancy bureaus in the two places to drink a pot!
Therefore, when these experts and scholars saw that [Removing Sewage and Grass] actually had the effect of solidifying sludge in the live broadcast, they all burst into tears with excitement, and the phones in their hands kept dialing the old leaders they knew well.
"Hey!"
"Dong Lao?"
"It's me!"
"Xiao Liu of the Water Conservancy and Environmental Protection Laboratory!"
"Dong Lao, let me tell you, turn on the computer and go online to watch the live broadcast of xx TV!"
"The traditional dredging method that has plagued us for many years has finally found a feasible alternative!"
----
ps: It's almost 2 o'clock, and the data is a hammer tonight!