詳細(xì)說(shuō)明

Shuangjie River is located in Shenzhen city。

2.Sources of pollution

The river is replenished by urban sewage plant, so its pollution source is mainly the tail water of sewage plant, and the discharge standard of sewage plant is basically class A. 

3.Governance objectives

To surface water Ⅲ class。

4.Control measures

Governance time, October 11, 2018 solstice November 11, 2018, a total of one month. 1 installation device, the farthest monitoring point is 750m away from the device.

5.Governance effect

River water quality reach Ⅱ governance 1 months after class, overfulfilled Ⅲ class goal: COD by 32 ~ 40 mg/L (Ⅳ class) dropped to 10 mg/L (Ⅱ); NH3 - N from 1.4 mg/L (Ⅳ class) fell to 0.1 mg/L (Ⅰ); TP from 0.52 ~ 0.87 mg/L (worse Ⅴ) fell to 0.05 ~ 0.1 mg/L (Ⅱ class).