Ho Chi Minh City will build seven wastewater treatment facilities by 2015 to treat more than 1.2 million cubic meters of residential wastewater draining into the city's rivers and canals everyday.
Nguyen Van Phuoc, deputy director of the municipal Department of Natural Resources and Environment, said each plant would have a projected investment of VND1.3 trillion (US$68.4 million).
He said the city now has only one wastewater treatment facility for residential use: the Binh Hung plant in the outlying district of Binh Chanh, which has a daily capacity of 141,000 cubic meters.
Another plant that will treat water before it enters the Tham Luong Ben Cat Vam Thuat canal system will be built soon.
Phuoc said the nine plants could process the entirety of the city's residential wastewater once they are all open.
Currently, untreated wastewater from residents in inner districts is drained into the Nhieu Loc Thi Nghe Canal before flowing to Saigon River, the main water source for Tan Hiep Waterworks, which caters the city's people.