Turn to Xi An satellite news report:

On August 2, a heavy road pollution removal vehicle debuted in Xi’an, after cleaning the road surface of Fengcheng 7th Road, the residual amount of dust per square meter was only 1.33 grams, far less than the current standard of Xi’an City First Class Road. Thoroughly solve the problem that the existing equipment could not effectively remove road fouling, slab, oil, bio-chemicals and other pollutants.

In the morning, when the reporter came to Fengcheng 7th Road and Mingguang Road, he saw a new road pollution removal vehicle with a “head” larger than the ordinary road sweeper. The road was cleared, the road passing by the car was cleared, and a black asphalt road was exposed. The dust in the gap was also sucked clean, just like the newly paved new road, which contrasted with the adjacent lane. The water-permeable gap and stone particles on the road surface were clearly visible, and the white zebra marking line was just sprayed. During the road cleaning operation on the section of Fengcheng 7th Road, passersby stopped.
Watch and appreciate each other’s work results. Someone curiously pulled out the paper towel on the road, but saw the paper towel clean. After a woman squatted her finger on the road, she looked at the index finger without any dust and said, “The cleaning ability is too strong! It is too powerful!”

The reporter found that this road pollution removal vehicle tail part does not have a rotating brush head, instead a vacuum cleaner structure, 360 degree panoramic video surveillance and intelligent anti-collision system installed in the cab to ensure safeoperation, the device has terrain following ability It will automatically adjust as the terrain changes, and the distance between the left and right parallel movement is 30 cm. According to the on-site staff, the traditional sweeping vehicle only cleans up the scattered debris on the road surface, and the pollution and permeability impurities cannot be removed. This 9.8-meter-long and 2.5-meter-wide pollution-clearing vehicle uses dozens of patented technologies, in which ultra-high pressure water jets are used to flush the gaps in the road, creating a vacuum instantaneously, using composite turbine technology and high-pressure jet rotary cleaning technology, using powerful Attractive, direct peeling of dirt, slabs, oil stains, biochemicals and other contaminants attached to the road, can deep clean the road. After the operation, the road is spotless and there is no water stain. It completely solves the secondary pollution caused by the cleaning truck and the sprinkler. It can curb the road dust from the source, and at the same time remove the poisonous substances on the road board that have been solidified in the gap of the road for a long time.

It is understood that the average amount of dust per square meter after the first operation of this pollution-removing vehicle is only 1.33 grams, and the average residual amount per square meter of dust is only 1.33 grams, which is far less than the current level of dust per square meter of Xi’an. 5 grams of standard. At the same time, road dust load decreased by 92%-98%, road dust PM2.5emission coefficient decreased by 90%-97%, and tire dust PM2.5concentration decreased by 90%-94%. It has reached the most stringent US Environmental Protection Agency USEPA standard and can be said to be ahead of the international level.

The relevant person in charge of the urban management department of Xi’an said that after the urban road has been crushed many times by the vehicle, a large amount of dust particles will be hidden between the gaps of the road. As the tires of the vehicle are squeezed, some dust particles below PM10 gradually become. It floats in the air and forms air pollution. The large particles left in the gaps of the road gradually become knotted, blocking the original gap of the asphalt road, reducing the water permeability of the road surface, reducing the noise reduction function of the road surface, and increasing during the rainstorm season. The drainage pressure of the city increases the noise pollution caused by the vehicle. The arrival of this new type of pollution-removing vehicle also gives Xi’an new thinking and enlightenment on “road dust control”. From “dust suppression” to “dust reduction”, from “decrease” to “treatment”, Xi’an is on a step-by-step approach to international standards.