詳細(xì)說明

1.Project overview

The Baiyangdian river system is composed of pits, ponds, lakes and rivers, and the river is controlled by the Daqing River tailgate.

2.Sources of pollution

The main pollution sources are industrial, agricultural and urban household sewage and garbage pollution. Water quality is worse Ⅴ classes, DO: 2.8 mg/L, the COD: 74 mg/L, NH3 - N: mg/L, TP 14.1:1.43 mg/L, TN: 19.2 mg/L. For black smelly river.

3.Governance objectives

Eliminate black smelly, water quality reach Ⅲ class。

4.Control measures

The governance time is September 3, 2018 solstice, October 13, 2018. 5 installation devices.

5.Governance effect

Devices within a 1 km radius of water bodies, all by bad V kind to Ⅲ class, eliminate black smelly, reach the goal. Water quality: the average COD reaches 16.3mg/L and the removal rate reaches 78%. Nh3-n reached 0.05mg/L on average and the removal rate reached 99.6%. The average TN reached 0.65mg/L and the removal rate reached 96.6%. The average TP reached 0.05mg/L and the removal rate reached 96.5%. The farthest monitoring point is 2.2km away from the device, which is also effective.

Water quality index curve

Before the governance

After the governance

After treatment, the water at a distance of 2.2km from the equipment is clear to the bottom