HANOI, Oct. 7 (Xinhua) -- Work at a waste water treatment system project, which is said to be Vietnam's largest of this kind, started in Vietnam's capital Hanoi on Friday.
The system with a capacity of dealing with 270,000 cubic meters per day and night, will collect waste water in an area of nearly 4,900 hectares in Hanoi's seven districts of Ba Dinh, Tu Liem, Dong Da, Thanh Xuan, Hoang Mai, Ha Dong and Thanh Tri.
Currently, waste water in the Vietnamese capital is collected through a system of drains and canals and then discharged into lakes and four main rivers including Kim Nguu, Set, To Lich, and Lu, reported Vietnam News Agency.
The project is said to help improve water quality in Hanoi and revive three out of four above-mentioned rivers.
