Nanjing river dredging and silt solidification project

Project background

With the acceleration of urbanization, the siltation problem of urban rivers has become increasingly serious, seriously affecting flood control and drainage and the water ecological environment. A major river dredging project in Nanjing produced a large amount of sludge with high moisture content. The traditional stacking and drying method occupied a large amount of land and easily caused secondary pollution.

solution

After our company intervened, we used a special "silt (sludge) solidifying agent" to perform in-situ solidification treatment.

1. Site survey:Sampling and analysis of sludge moisture content and composition.
2. Plan formulation:Determine the curing agent addition ratio to be 5%, and use mechanical stirring.
3. Construction implementation:Sprinkle the curing agent evenly into the sludge and use an excavator to stir thoroughly.

Processing effect

After treatment, the sludge thickened rapidly within 24 hours, and its moisture content dropped significantly after 3 days, making it able to withstand the movement of an excavator. The solidified soil has no odor and meets the requirements for roadbed filling. It is eventually transported to a nearby road construction site as roadbed filling, achieving "zero discharge" and resource utilization of silt.