Dongguan’s first sponge city construction demonstration project is expected to be completed in June this year.

The river water has eliminated black odor, and cross-strait landscape projects are under construction. “At about 10:00 am on January 5, Yuan Xiaowen, director of the Dongcheng Waterworks Construction and Operation Center, told the reporter at the bridgeside of the Chinese Hospital of the Shasha River in the Huangsha River. “This is the first demonstration project for the construction of the sponge city in Dongguan. It is expected to be all in June this year.” Completion, water storage, flood control, rainwater collection and reuse. ”
The reporter saw at the scene that the upper levee project of the Huangsha River and the sand section was under construction, and some of the bridges, hydrophilic platforms and ecological retaining walls along the banks of the river were completed.
The river in the same sand section has eliminated black odor
On the morning of January 5, in the sand section of the Huangsha River, the reporter stood on the bank of the river and watched the river with a width of about 20 meters with a slow flow of water. “Look, there are fish in the river.” Master Yang, who is piled up with cement bricks, told the reporter, “Before the sewage flowed here, we can smell a bad smell when wearing a mask. Now the shore construction, no need Wearing a mask, I can’t smell the smell.” Master Yang pointed to the river and told reporters: “The yellow mud water you see now is mainly produced by piling and mixing yellow mud on the shore. The river is usually clean.”

 

According to reports, the Huangsha River started at the sluice gate of the Tongsha Reservoir and flowed into the Chopstick River, with a total length of 7.8 kilometers. Among them, the same sand section is about 2.8 kilometers, belonging to the upper reaches of the Huangsha River, ending at the bridge of the Chinese Hospital, with three branch channels. Before 2016, the sewage from the sand section of the Huangsha River was a famous “black and odorous water body” in Dongguan.
Since 2016, Dongcheng has comprehensively rectified the sand section of the Huangsha River. “At the time, it was mainly dredging and improving water power.” After the city’s crackdown on water pollution control, the Huangsha River Tongsha section was listed as a pilot project for the sponge city. project. To find out the “home bottom” of the black sand of the Huangsha River, Dongcheng has the right medicine for the disease, and has carried out the construction of the sewage interception pipe network, the interception of the sewage outlet along the river, the improvement of water quality, the improvement of the river course, the pollution control of the source, etc., which have effectively improved the water quality of the river. “The black odor has been eliminated.”
At present, the interception pipe network has been completed in the sand section of the Huangsha River, and the sewage outlet along the river has been intercepted, and the pollutants have been controlled to flow into the Huangsha River from the source. Yuan Xiaowen told reporters: “At present, the Tongsha Reservoir is ecologically replenishing water for the Huangsha River, flowing 1 cubic meter per second. With clean living water and ecological restoration works, the black and odorous water body is eliminated from the source.”

“Litches and longan are planted on both sides of the river. There are also white eucalyptus and eucalyptus trees. The river bank near the Chinese medicine hospital is also equipped with a covered bridge and a hydrophilic platform.” Yuan Xiaowen believes that as a sponge city pilot project, it is not only to beautify the landscape, but also suitable for the surrounding citizens. At the same time, it must also have the function of popular science. “Planting trees that represent Dongguan characteristics is also to retain the homesickness in the process of urbanization.”

 

In fact, the pilot construction of the sponge city in the sand section of the Huangsha River also fully considers the diversion of rain and sewage, and sets up corresponding channels to strengthen the collection and utilization of rainwater on road surfaces and industrial areas, and improve the utilization rate of rainwater resources. Water-permeable bricks, permeable asphalt, and vegetation are planted on both sides of the river to absorb and save rainwater.
Standing on the bridge of Chinese Medicine Hospital, Yuan Xiaowen told reporters: “The rainwater passes through the permeable pavement, replenishes the groundwater, and then temporarily stores the natural water body through the artificial wetland, reduces the pressure of the urban drainage system, can realize the recycling of water, and realize the sponge city. Features.”
Yuan Xiaowen also revealed that “the implementation of the colored landscape belt project on both sides of the river, planting flowers and plants of different colors, so that the various sections along the line will present a colorful color.” Through the connection of the bridge and the hydrophilic platform, the beautiful and livable ecological environment will be constructed and the surrounding citizens will be built. The masses enjoy the sense of acquisition and happiness brought about by the construction of the sponge city.

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Post time: Jan-07-2019
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