Ha Noi Drainage Company director general Nguyen Le says 450,000-510,000 cubic metre of waste water is presently discharged daily in the city. More than 90 per cent of it is directly poured into the drainage system without being treated.
This includes waste water discharged from industrial zones, hospitals and factories, he says.
Only 5 to 7 per cent of waste water goes through any standard treatment procedures. The city currently has one big waste water treatment factory, North Thang Long-Van Tri, and two small treatment stations, Kim Lien and Truc Bach.
"Water of the city’s drainage rivers and canals is usually black in colour and gives off putrid smells, which affects human health and the environment," he says. -Viet Nam News Service
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