Water quality declines
Re River belongs to the An Kim Hai canal system (branch 1) 9.5 km long, is the source of raw water supply for clean water factories, providing domestic water for more than 1 million people in Hai Phong city.
According to a recent review by An Hai Irrigation Works Exploitation Company Limited, there are up to 360 discharge points of businesses and residential areas into An Kim Hai canal, causing the water quality to decline. "The most worrying thing is that domestic wastewater in residential areas and markets has not been collected and treated, but is discharged directly into An Kim Hai irrigation canal and then overflows into Re river," said Tran Quang Hoat, Chairman of the company.
Along with that, the water source taken from the canal in Phu Thai (old) to feed the An Kim Hai canal system to supply the Re river is being heavily polluted, especially the section from Quang Dat culvert to Kim Khe junction, making it impossible to add water to the An Kim Hai system at many times.
In addition, the pumping station for domestic wastewater at My Tranh sluice (An Duong ward) is not in operation, and the wastewater reservoir discharges directly into the Re River, polluting the water source. According to recent data from Hai Phong Water Supply Joint Stock Company, at the My Tranh sluice gate into the Re River, the Amoni index often exceeds 1.2 mg/l compared to the standard of 0.30 mg/l.
To ensure the quality of raw water sources of the Re River, from the beginning of 2025 until now, An Hai Irrigation Works Exploitation Company together with related units have taken 620 samples to test and evaluate the quality of the sources in the rivers connecting to the Re River, namely Lach Tray River and Cam River, ready to regulate and prevent saltwater intrusion. Coordinate with related localities to strengthen inspection, handle violations and encroachment of the An Kim Hai canal corridor, areas at risk of pollution.
In the first 10 months of 2025, the unit inspected and recorded 33 violations; completed handling and cleared 29 cases, and continued handling 4 violations. The company proactively closely monitored the discharge and compliance with discharge regulations into the irrigation works connecting to the Re River by enterprises located in the area.
Expecting a fundamental, long-term solution
To limit the impact of water pollution on the Re River, the People's Council of the city and An Duong district (formerly) issued a specialized resolution on protecting and improving the water quality of this river.
An Duong district (old) alone invested nearly 100 billion VND to build wastewater collection and drainage works at important discharge points and to build wastewater collection and drainage points at Ba Nhi culvert, Vinh Khe village and Cai Tat culvert. Organized inspection and installation of pipelines to collect and treat wastewater for 720 households living along the Re river, diverted wastewater to other branches for treatment...
However, this is only a short-term solution, because the reality shows that the Re River water source is in a highly alarming state of pollution, requiring fundamental, long-term solutions.
Faced with the urgent need to ensure water security and improve the water quality of the Re River, the Hai Phong City Development Project adapting to climate change has designed a separate component (component 2) to upgrade the environment of the Re River.
Mr. Pham Van Phong, Deputy Director of the Hai Phong Traffic and Agricultural Construction Investment Project Management Board, said: Component 2 has two sub-components including upgrading the infrastructure of the Re River and upgrading the environmental sanitation of the Re River basin.
In particular, the infrastructure upgrading subcomponent will build a road along the Re River with a length of about 14.1km to manage and create space for the wastewater collection system; upgrade and build a new embankment and renovate the existing embankment with a length of about 11km.
The Re River Basin Environmental Sanitation Upgrade Subcomponent will build a 17.3 km long sewer system to collect wastewater on both sides of the Re River; 1.4 km of pressure sewers, 12 wastewater pumping stations; install 11.6 km of sewer network to collect wastewater from households; build An Duong 1 wastewater treatment plant with a capacity of 10,000 m3/day and night...
Chairman of An Hai Irrigation Works Exploitation Company Tran Quang Hoat assessed that component 2 of the project is truly a fundamental, long-term, and effective solution to maintain and improve the water quality of the Re River, and needs to be implemented soon.
In the immediate future, to ensure the reserve and quality of the Re River water source for clean water production, industry and agriculture in the dry season of 2025, An Hai Irrigation Works Exploitation Company will promote the application of science and technology in management and operation; regularly monitor and evaluate water quality through automatic measuring stations and direct measurements to take samples for water quality testing. "The unit proposed dredging, building banks, and lowering the bottom of An Kim Hai canal (branch 1) and Hoa Phong canal (west of Hai Phong) to increase water storage capacity. At the same time, build Le Thien regulating sluice", Mr. Tran Quang Hoat added.
PHAM CUONGSource: https://baohaiphong.vn/chung-tay-bao-ve-nguon-nuoc-song-re-527579.html
Comment (0)