The Expo Site Has A Guaranteed &Nbsp For The Flood Season, And The Maximum Drainage Capacity Is 60 Cubic Meters Per Second.

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The Shanghai City Construction Design Institute, which is responsible for the design of the Expo Park drainage system, said that the maximum drainage capacity of the park was 60 cubic meters per second, and could cope with the heavy rainfall of 56 millimeters per hour. It was the first in the city, and it could be compared with the developed cities in foreign countries.

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The park is located along the Huangpu River along the Yangtze River. The old underground drainage pipes are old, and the caliber is very small.

The construction of Expo site has solved the problem of flooding.

According to the Shanghai urban construction and Design Institute, 4 drainage systems and storage tanks were built in Puxi and Pudong respectively in Mengzi, Hou Tan, Puming and South terminals, with an area of 6.46 square kilometers.

The largest drainage capacity of the park has nearly doubled compared with the past, exceeding that of Lujiazui and the Bund, which is nearly 2/3 higher than the average level of the whole city.

Experts from the Shanghai urban construction and Design Institute said, "even if it is heavy rain, tourists will not be easily wet by the rain on the road of the Expo site."

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The rainwater and sewage diversion system of the park first stores the collected dirty rainwater in the underground super large capacity rainwater storage tank, and then sends it to a special sewage treatment plant to carry out deep purification and discharge into the river course.

This will not only improve the water quality of the river and the landscape of the urban environment, but also effectively supplement the water used in the surrounding rivers and conserve groundwater resources.

When it does not rain, the rain water pumping station can also collect waste water from the road and centrally send it to the sewage treatment plant for disposal.

These rainwater storage tanks are just like an ecological gate. The average interception of pollutants can reach more than 50%, which will significantly improve the water quality of the Huangpu River.