Why did the North Canal become the "To Lich River" in Vinh city?
(Baonghean.vn)- The North Canal has a modern design with separate ditches on both sides to lead wastewater to the centralized wastewater treatment plant for treatment...
In 2020, the wastewater drainage ditch on Nguyen Sy Sach Street was clogged with mud and garbage, leading to wastewater overflowing.North Channelcausing environmental pollution. According to the workers of the city's wastewater management, operation and treatment unit, that year, they encountered many difficulties in handling it. The reason was that the ditches, sewer systems, wells, and manholes were located deep underground; the ditches were only about 1.2m in diameter; some pipes were only 0.4 - 0.6m long..., while there was a lot of sludge and waste, and it was extremely toxic and polluted.
On February 16, 2023, following them down to the underground sewage system, I was convinced of these things, and also understood why waste could get into the system of ditches, sewers, and separation wells...
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The person in the photo is Mr. Le Ngoc Thanh, a worker at the Drainage Enterprise, Vinh Urban Infrastructure Management and Development Joint Stock Company. In 2020, Mr. Thanh participated in handling mud and waste that caused blockage of the wastewater drainage ditch on Nguyen Sy Sach Street. He said: "It was very hard to do this task. Going down there, every 15 minutes or so, I had to come up to breathe. Collecting mud and waste was also very difficult. There were all kinds of trash, including objects and dead animals. That year, we even pulled up winter blankets...". Photo: Thanh Cuong |
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On the afternoon of February 16, 2023, wastewater poured out from under the Kenh Bac bridge at a high intensity. Although we knew the cause of the sludge settling in the sewer line and the separation well, leading to wastewater backing up and overflowing the partition wall. However, the stories of those who collected the sludge and waste made us ask the management and operation unit to send people to this place. Photo: Thanh Cuong |
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Under the North Canal Bridge on February 16, 2023. Photo: Nhat Lan |
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In principle, when there is no rain, the wastewater will be blocked by the wall, down the separation well to flow by itself through the canal system to be treated by the Central Wastewater Treatment Plant. However, here the wastewater is extremely large, overflowing the wall and spilling into the North Canal. Photo: Nhat Lan |
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| Workers of the city's wastewater treatment management and operation unit use a shovel to probe sludge in front of the wastewater separation well area. Photo: Nhat Lan |
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The sludge stored here is very scary. Photo: Nhat Lan |
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And the reason why the waste entered the separation well and followed it down the ditch has been determined. In the photo, the waste barrier system of the separation well under the Kenh Bac bridge has been completely damaged, creating large holes, unable to stop the waste. Photo: Thanh Cuong |
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Along the North Canal, on Phung Chi Kien Street, there are three more locations where wastewater is overflowing through the walls and pouring into the canal. Photo: Thanh Cuong |
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Nghe An Newspaper reporters went down to the wastewater separation well (near 3/2 bridge) to record the current situation. Photo: Nhat Lan |
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Here, wastewater rises, overflows the wall and flows into the North Canal with a not-so-small flow. Photo: Thanh Cuong |
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According to the technical staff of the wastewater treatment management and operation unit, in the near future, they will carry out dredging of mud and waste in the canal north of Kenh Bac, on Phung Chi Kien Street. However, from reality, it is necessary to re-evaluate the technical infrastructure of the drainage system. If only dredging of mud and waste is organized without repairing and renovating damaged areas (such as the barrier of the separation well under Kenh Bac bridge), after a short time, garbage and waste will cause blockage of the canal again. In the photo, a reporter from Nghe An Newspaper is working at the separation well on the side of 3/2 bridge. Photo: Nhat Lan |
