Lime slurry tanks

Lime Slurry Tanks: Reliable Storage and Handling for Water Treatment and Industrial Processes | Bunney’s Inc.

Lime slurry systems are widely used for pH adjustment, neutralization, softening, and treatment in industrial plants, power facilities, and water/wastewater operations. But lime slurry is not a simple liquid, it’s a suspended solid that can settle, harden, plug lines, and abrade equipment if the tank system isn’t designed and maintained correctly.

This guide covers key considerations for lime slurry tanks, common project scopes, and how Bunney’s Inc. supports safe installation, repairs, coatings, and outage-ready execution.

What Is a Lime Slurry Tank?

A lime slurry tank stores and conditions a mixture of water and lime solids (often hydrated lime). The tank system is designed to:

  • Maintain a consistent slurry concentration

  • Prevent solids settlement and hardening

  • Support controlled feed to downstream treatment or process systems

  • Enable safe cleaning, inspection, and maintenance

Because lime slurry behaves differently than water or chemicals, tank design must address mixing, abrasion, and maintenance access from the start.

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    Common Uses for Lime Slurry Tanks

    Lime slurry tanks are commonly used in:

    • Water and wastewater treatment (pH control, softening, alkalinity adjustment)

    • Industrial effluent neutralization systems

    • Flue gas treatment and scrubbing support applications

    • Process water conditioning in industrial plants

    Key Design Considerations for Lime Slurry Tanks

    1) Mixing and Agitation to Prevent Settling

    Lime solids settle quickly if mixing is inadequate. Poor mixing leads to:

    • Hard-packed solids at the bottom

    • Reduced effective volume

    • Plugged suction lines and feed systems

    • Inconsistent dosing and unstable pH control

    Successful systems often include properly sized agitation or recirculation designed for slurry service.

    2) Abrasion and Wear Resistance

    Lime slurry is abrasive. Over time it can wear down:

    • Tank bottoms and internal surfaces

    • Piping and elbows

    • Pumps, valves, and fittings

    • Nozzles and penetrations

    Wear-resistant materials, liners, and protective coatings can extend service life.

    3) Tank Material and Lining Selection

    Material selection should match slurry behavior and site conditions. Considerations include:

    • Compatibility with high-pH slurry

    • Resistance to abrasion and erosion

    • Ability to handle repeated cleaning cycles

    • Protection at high-wear zones (bottoms, inlets, recirculation points)

    4) Nozzle Loads, Piping Layout, and Plugging Prevention

    Slurry systems require smart piping design to reduce plugging risk:

    • Avoiding dead legs and low-flow zones

    • Proper line slopes and cleanout points

    • Controlled suction placement and strainer strategy (as engineered)

    • Pipe support and alignment to reduce stress at nozzles

    5) Safe Access for Cleaning and Maintenance

    Lime slurry tanks often require periodic washdown, inspection, and solids removal. Projects commonly include:

    • Safe access platforms and handrails

    • Manway access improvements

    • Hose-down and drain strategy planning

    • Area housekeeping improvements

    6) Secondary Containment and Spill Control

    While lime slurry is typically less hazardous than many corrosive chemicals, containment protects equipment, improves housekeeping, and supports environmental and operational control.

    Containment scope may include:

    • Concrete curbing and diked pads

    • Surface sealing/coatings for easier cleanup

    • Drainage control to prevent uncontrolled discharge

    Common Lime Slurry Tank Project Types

    New tank installation or replacement

    Often driven by capacity needs, recurring plugging, or tank deterioration. Typical scope includes:

    • Foundation/pad readiness support

    • Tank setting and fit-up coordination

    • Tie-ins to pumps and dosing systems

    • Access improvements and containment upgrades

    Tank rehabilitation and wear-area repairs

    Projects may target:

    • Bottom wear zones and internal surfaces

    • Nozzle areas, penetrations, and leak pathways

    • Support steel and anchor corrosion protection

    Protective coatings and corrosion control

    Even in slurry systems, surrounding steel and concrete can degrade from moisture, splashing, and harsh operating conditions. Coatings can improve durability and reduce maintenance.

    Outage/shutdown tie-ins

    Some upgrades require planned downtime to safely connect or modify systems especially when dosing feeds critical processes.

    How Bunney’s Inc. Supports Lime Slurry Tank Projects

    Lime slurry tank work often involves heavy equipment, tight access, and maintenance-driven schedules. Bunney’s Inc. supports lime slurry projects with practical, field-ready execution.

    Our support services include:

    • Industrial construction services for tank installation, repairs, and modifications

    • Heavy lifting and rigging support for tank setting and major component handling

    • Precision positioning for accurate placement and fit-up

    • Protective coatings and corrosion protection to extend asset life

    • Concrete secondary containment construction and repair for spill control and durability

    • Outage support services for shutdown tie-ins and schedule-critical work

    • Safety-first execution aligned with site permits and controlled work zones

    Best Practices for Long-Term Lime Slurry Tank Reliability

    Facilities typically improve lime slurry performance when they:

    1. Maintain effective mixing to prevent solids settlement

    2. Protect wear zones with durable liners/coatings and planned maintenance

    3. Design piping and suction layout to reduce plugging risk

    4. Build safe access for cleaning and inspection into the system

    5. Plan major tie-ins and upgrades around outage windows to control risk

    Conclusion: Keep Lime Slurry Systems Stable and Maintenance-Ready Contact Bunney’s Inc.

    Lime slurry tanks are essential for consistent treatment performance but they require the right mixing strategy, wear protection, and maintainability to stay reliable over time. Whether you’re installing a new lime slurry tank, repairing wear areas, upgrading containment, or planning outage tie-ins, Bunney’s Inc. is ready to support your project with safe execution and durable results.

    Need support for a lime slurry tank project? Contact Bunney’s Inc. today to discuss your scope, schedule, and the best path to long-term slurry system reliability.

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