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Sodimate Inc
Bulk Storage, Handling and Mixing Systems
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      • Sludge Stabilization
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  • Home
  • Company
    • The advantage
    • Powder handling specialist
    • Sales Network
    • Contact
  • Blog
  • News
  • Products
    • Mechanical Bin Activator
    • Big Bag Bulk Discharger
    • Flexible Screw Conveyor Type DMR
    • Screw Feeder Hopper
    • Injector Screw for moisture isolation
    • Slurry Tank
    • Pneumatic Conveying Systems
    • Loss in Weight Feeder
    • Slurry Eductor PAC Microsand
    • Slurry Metering System
    • Silo Retrofit
    • Bulk storage silos
    • Lime Slaker Unit
    • Sludge Mixer Class B
    • Sludge Screw Conveyor
  • Applications
    • Water & Wastewater
      • pH Control
      • Sludge Stabilization
      • Taste/Odor Control & Polluants Removal
      • Water Softening & Remineralization
    • Air Pollution Control
      • Dioxin & Furan Treatment
      • SO2, SO3 and Acid Gases
    • Industrial
      • Cement
      • Food Processing
      • Plastics
      • Pulp and Paper
      • Glass
  • Powders
    • Dry Chemicals & powders
    • Powdered Activated Carbon
    • Dry Cement
    • Hydrated Lime – Slaked Lime
    • Quicklime
    • Soda Ash
    • Sand
    • Polymers
  • Photos
  • Resources
  • Contact
  • US Locations

Sludge Stabilization

 Lime sludge stabilization systems

Sodimate provides custom-designed systems with complete from lime storage tanks to sludge processing and conveying screws. The solutions are adaptable to specific site requirements for storage and loading, transport and processing needs, and conveyor size.

Post liming sludge stabilization 

Dewatered sludge is mixed with lime, preferably quick lime instead of hydrated lime, in order to increase their pH to 12 though killing pathogens and micro-organism. The addition of lime increase also the sludge dry material content as lime react with water and vapor is released.

A dry material content of 30% can be easily reached whatever the type of dewatering equipment used upstream.

Sludge and lime should be mixed intimately and homogeneously to ensure that each lime molecule reacts.

Sludge stabilization with lime
Typical Sodimate configuration:

Sludge processed by a dewatering system, such as a centrifuge or belt press, is collected and conveyed to a sludge mixer. Powdered lime from the storage container (silo, hopper, or big bag stand) is also fed to the mixer, generating homogenous, stabilized biosolids (Class B). The Sodimate sludge mixer does not alter sludge structure, contrary to the other types of mixing systems.

hydrated lime
Advantages of a sludge stabilization system:
  • Increased dry solids content (DS%)
  • pH Regulation
  • Pathogen Inactivation
  • Odor control
  • Volume reduction
  • Easier handling & storage
  • Landfill-ready

Sodimate proposes alternative storage solutions adapted to the customer’s need, depending on the product consumption and its procurement difficulties : silo, Big Bag Stand or sack tip hopper.

Pre liming sludge stabilization 

The pre liming sludge stabilization is usually used for 2 types of application

1°/ Sludge dewatering by filter press  

A lime milk made of hydrated lime (lime milk preparation tank) or quick lime (lime slaking unit) is injected into the conditioning tank allowing increased dewatering performances.

2°/ Sludge dewatering by centrifuge 

The use of quick lime which has a “delayed reactivity” allows a pre liming sludge treatment with centrifuges, whereas centrifuges are generally associated with post liming application. The delayed reactivity quick lime is discharged, dosed and injected into a maturing tank where it is mixed together with liquid sludge before being sent to the centrifuge.

The centrifuged sludge is transferred by screw conveyor and it is only once the sludge is discharged into the storage skips or the storage area that the lime starts its exothermic reaction.

A sludge mixer blending quicklime into the material to stabilize the sludge.
A sludge mixer blending quicklime into the material to stabilize the sludge.
Twin-screw mixer for sludge and quicklime.
Twin-screw mixer for sludge and quicklime.
Quicklime silo feeding a sludge mixer post centrifuge
Quicklime silo feeding a sludge mixer post centrifuge

Over 9000
worldwide installations

Discover the competitive advantage
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Products

Mechanical Bin Activator
Bulk Bag Discharger
Flexible Screw Type DMR
Hopper with Screw Feeder
Injector screw feeder
Slurry Tank
Pneumatic conveying systems
Loss in Weight Feeders
PAC Slurry Eductor
Slurry Metering System
Silo Retrofit
Bulk Storage Silos
Sludge Mixer Class B Stabilization
Lime Slaker
Applications

Dry Chemicals & Powders
pH Control
Sludge Stabilization with lime
Taste & Odor Control
Water Softening
Dioxin & Furan Treatment
SO2, SO3 and Acid Gases
Cement
Food Processing
Plastics

Specializes in providing high-quality and reliable bulk storage, discharge, metering, handling, and mixing systems tailored to your water or air treatment application needs.
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Sodimate Inc
2950 W. Chicago Ave.
Suite 205
Chicago, IL 60622

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