After two years' renovation, Jiangdong Water Treatment Plant in Ningbo is ready to supply local residents with "healthy water," which is filtered by 0.03 micron membrane filter, much smaller than the diameter of a piece of hair.

The installation and testing of the new equipment were completed yesterday, which means that the plant will be able to produce water of 200,000 tons a day.

With a history of 60 years, the plant experienced three expansions, which enabled its daily capacity of tap water production to reach 350,000 tons.