THE SITUATION The Chinese city of Ningbo built its first modern water treat - ment plant in 2007. Raised on a hillside in the mountains near this urban area of about 4 million in Zhejiang province, the Ningbo Dongqian Lake water plant would supply water to about a third of the city’s population. Jiang Yarong worked with the plant to secure a proper pump supply. She is general manager of Hangzhou Jijie Environment Protection Technology Compa

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