When you need to add lime slurry mixing and chemical dosing to a water treatment line, a mining pH-control loop, or an industrial process, you're not just buying a pump-you're buying a coordinated skid that mixes, meters, and monitors. The question is whether a used unit with specific power and mounting specs is the practical fit for your plant.
Quick verdict
The STT Enviro Corp Lime Slurry Mixing & Chemical Dosing Skid System w/ Pump is a self-contained skid that brings together a vertical cylindrical mixing tank, a top-mounted mechanical agitator, and a WEG 3 HP 575V / 3 Phase dosing pump, all with a Badger Meter SEVA valve actuator and flow instrumentation. Priced at USD 7,528.50, it suits operators who need a portable, pre-assembled chemical dosing package for water/wastewater treatment, mining tailings neutralization, pH control, industrial process water, chemical processing, or flue gas desulfurization systems.
Who it suits
Facilities that already run 575V 3-phase power and need a skid-mounted system that can be moved between process areas. The listed dimensions of 72(H) x 41(W) x 101(L) inches and 7500 lbs weight make it a substantial unit, but the skid mounting keeps it a single, movable package rather than a set of loose components. If your process involves calcium hydroxide lime slurry and you want a system with a dedicated dosing pump and controls already wired in, this skid is aimed at you.
What stands out from the listed details
The system is designed specifically for calcium hydroxide lime slurry. It uses a vertical cylindrical mixing tank with a top-mounted mechanical agitator, which is a practical configuration for keeping slurry suspended. The process/dosing pump is an electric motor-driven unit (WEG 3 HP, 575V, 3 Phase, 1760 RPM), and the valve actuator is a Badger Meter SEVA Series. Instrumentation includes flow meters and a valve position monitor, so the skid gives you visibility into dosing and flow rather than making you source those separately. Applications listed include water and wastewater plants, mining tailings neutralization, pH control, industrial process water, chemical processing plants, and flue gas desulfurization-so it's a versatile package for corrosion- and pH-related processes.
Meaningful trade-offs
Because this is a used unit, you're accepting prior service life in exchange for the lower upfront price. The 575V / 3 Phase motor is a specific power requirement, so it's only a direct fit for facilities with that electrical supply; plants running other voltages will need to factor in a transformer or motor replacement. The skid is heavy at 7500 lbs, which means you'll need appropriate lifting or moving equipment on site. None of these are hidden flaws-they're simply the trade-offs of buying a used industrial skid, and they're typical for this type of equipment.
Bottom line
If your plant runs 575V 3-phase power and you need a skid-mounted lime slurry mixing and dosing system that can handle calcium hydroxide for pH control, water treatment, or FGD, this STT Enviro Corp unit is a concrete, ready-to-consider package at USD 7,528.50. It's not a plug-and-play toy; it's a real piece of process equipment that deserves an operational review against your specific duty cycle.
STT Enviro Corp Lime Slurry Mixing & Chemical Dosing Skid System w/ Pump
A strong reason to choose this skid is the integrated instrumentation package: you get a Badger Meter SEVA actuator, flow meters, and a valve position monitor bundled into the skid, so you don't have to build out the dosing loop from scratch. The main limitation is the used condition and the 575V motor spec, which means your electrical system and your tolerance for used equipment need to match this unit's profile. At USD 7,528.50, it's a straightforward way to bring lime slurry dosing capability to a 575V facility without assembling components separately.
