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Covering an area of about 13.8 hectares, the first phase of the Yen Xa Wastewater Treatment Plant has a capacity of 180,000 m³ per day and night, which will gradually increase to 270,000 m³ and eventually reach 576,000 m³ per day and night. (Photo: VNA)
Covering an area of about 13.8 hectares, the first phase of the Yen Xa Wastewater Treatment Plant has a capacity of 180,000 m³ per day and night, which will gradually increase to 270,000 m³ and eventually reach 576,000 m³ per day and night. (Photo: VNA)
The plant is equipped with a modern wastewater treatment system applying advanced technologies. (Photo: VNA)
The plant is equipped with a modern wastewater treatment system applying advanced technologies. (Photo: VNA)
The facility has 12 activated sludge tanks, using microorganisms to decompose organic matter in wastewater under AO technology. (Photo: VNA)
The facility has 12 activated sludge tanks, using microorganisms to decompose organic matter in wastewater under AO technology. (Photo: VNA)
The plant’s sludge settling tanks. (Photo: VNA)
The plant’s sludge settling tanks. (Photo: VNA)
The plant’s gravity belt thickener for sludge treatment. (Photo: VNA)
The plant’s gravity belt thickener for sludge treatment. (Photo: VNA)
The gravity sludge press system dewaters sludge before transporting it to the Yen So landfill. (Photo: VNA)
The gravity sludge press system dewaters sludge before transporting it to the Yen So landfill. (Photo: VNA)
Engineers supervising the operation of the reaction and settling tanks at the Yen Xa Wastewater Treatment Plant. (Photo: VNA)
Engineers supervising the operation of the reaction and settling tanks at the Yen Xa Wastewater Treatment Plant. (Photo: VNA)
The central control room overseeing the entire operation of the Yen Xa Wastewater Treatment Plant. (Photo: VNA)
The central control room overseeing the entire operation of the Yen Xa Wastewater Treatment Plant. (Photo: VNA)
Wastewater, after settling, filtering and disinfection to meet standards, is discharged into the To Lich River. (Photo: VNA)
Wastewater, after settling, filtering and disinfection to meet standards, is discharged into the To Lich River. (Photo: VNA)
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Largest wastewater treatment plant in Northern Vietnam

The Yen Xa Wastewater Treatment Plant, located in Thanh Liet ward (Hanoi), is the largest of its kind in northern Vietnam. With an investment of 16 trillion VND (nearly 610 million USD), the plant is expected to improve living conditions, the natural ecosystem and sanitation in central urban areas of Hanoi within the basin of To Lich River, Lu River and the left bank of the Nhue River. The project is a landmark work to celebrate the 80th anniversary of the August Revolution and National Day (September 2).

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