Case Studies-Jiangning District Science Park River Management Project

Project Description:

There are illegal drainage outlets along the river channel of the project. Some rainwater outlets along the river have sewage flowing on sunny days, and domestic wastewater from upstream is discharged into the river without treatment. Surface source pollution, such as upstream domestic garbage, has not been rectified. There is a lot of domestic garbage on both sides of the river bank, the water flow is poor, the self-purification capacity of the water is low, the water flow is poor, the self-purification capacity of the water is low, and the water is black and smelly, affecting the sensory effects and at the same time, causing the COD, ammonia nitrogen and total phosphorus concentrations in the water to exceed the standard.

Project Results

High-efficiency dissolved air floatation can remove more than 90% of suspended solids and total phosphorus in water bodies and simultaneously reduce COD values. After comprehensive treatment, it can meet the fourth category of surface water environmental quality standards.