詳細(xì)說(shuō)明

The river is located in Xujing Town qingpu District Shanghai。

2.Sources of pollution

Due to the rapid development of the city, it is difficult to renovate the old urban areas, and the environmental infrastructure in some urban areas of Shanghai is not in place, which leads to sewage being discharged directly into the river without treatment, and even garbage into the river. There are a lot of floating objects on the surface of the water, giving off a bad smell. Aquatic plants are bent with flocculation, and fish die, resulting in serious sediment and water pollution in the river, resulting in black smell. Before the water quality is worse Ⅴ class, COD: 58 mg/L, TP: 0.233 mg/L, NH3 - N: 1.243 mg/L, TN: 4.74 mg/L.

3.Governance objectives

Eliminate black smelly, water quality reach Ⅳ class。

4.Control measures

The governance period will be one month from October 14, 2018. 2 installation devices.

5.Governance effect

Eliminate black smelly, water quality reach Ⅳ class, task for achieving goals. The water quality reached, COD: 12mg/L, TP0.04mg/L, NH3-N0.8mg/L, TN2.0mg/L (channel evaluation did not include TN).

Water quality index curve

Before October 14, 2018

After treatment, the water quality of the river is clear