Case Study: Pile Foundation Sludge Treatment Using Polyacrylamide (PAM)
Issue: High viscosity of sludge and incomplete integration with chemical agents.
Solution: Application of polyacrylamide (PAM) specifically designed for pile foundation sludge treatment.
Treatment Outcome: The moisture content of the sludge after pressure filtration meets the discharge standards.
Process Description:
1. On-site Sedimentation Tank:
- A sedimentation tank is used at the construction site for sludge neutralization.
- After neutralization, clean water or treated recycled water is added to dilute the original sludge.
- Failure to dilute the sludge may result in uneven mixing with chemical agents, significantly impacting the pressure filtration process. Issues such as filter cloth impermeability or the leakage of turbid water may arise.
2. Treatment of Pile Foundation Waste Sludge:
- A specialized organic polymer, polyacrylamide (PAM), is added to the sludge water.
- PAM destabilizes the sludge water through adsorption, causing rapid coagulation and sedimentation, thereby achieving effective sludge-water separation.
Conclusion:
The use of polyacrylamide (PAM) in pile foundation sludge treatment effectively addresses the challenges of high sludge viscosity and incomplete chemical integration. By ensuring proper dilution and leveraging PAM's coagulation properties, the process achieves efficient sludge-water separation and meets the required moisture content standards for discharge. This method enhances the overall efficiency and environmental compliance of construction site sludge management.
