Context:
Land Recovery, Inc. (LRI), operating within Pierce County, faced the critical need to implement a robust Quicklime Sludge Stabilization System as part of their expanded waste management capabilities. To meet this challenge, LRI entrusted Sodimate with the task of designing and sizing a comprehensive solution that would effectively handle sludge stabilization through the application of quicklime.
Installation description:
Quicklime Handling
Central to the system is a 1,200 ft³ steel legged silo designed for storing quicklime. The heart of the feeding system is Sodimate’s proprietary “ZDM 400”, which integrates a mechanical bin activator with a volumetric screw feeder. This technology ensures precise flow control and accurate lime feeding, critical for consistent operation.
Additionally, a dedicated conveyor and moisture isolation injector screw are employed to seamlessly transfer quicklime to the inclined sludge screw conveyor.
Sludge conveying
- One Inclined Sludge Screw Conveyor that collects the sludge from under the dewatering centrifuge
- One horizontal Sludge Screw Conveyor on top of the dumpster. This conveyor has 3 outlets at regular intervals to allow an even distribution of sludge inside the dumpster.
System operation:
The operational workflow begins with the collection of sludge beneath the dewatering centrifuge by the Inclined Sludge Screw Conveyor. Simultaneously, quicklime from the silo is dosed and injected into the sludge stream via specialized equipment.
The resultant quicklimed sludge is then efficiently conveyed to a storage dumpster. The horizontal Sludge Screw Conveyor plays a crucial role here, ensuring the homogeneous distribution of the stabilized sludge throughout the dumpster.
Conclusion
With Sodimate’s expertise, Land Recovery, Inc. has successfully implemented an advanced Quicklime Sludge Stabilization System at Pierce County LRI Landfill. This collaboration showcases Sodimate’s ability to deliver tailored solutions that meet strict environmental standards and improve operational efficiency. By integrating cutting-edge technology and precise engineering, Sodimate has helped LRI make significant strides in stabilizing sludge and managing landfills sustainably.
