Wastewater Tank — Caustics/Bases
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LibertyCES has documented Wastewater Tank in Caustics/Bases service, including Caustic dosing chemical. Wetted materials to confirm: Polyethylene. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a free spec review.
Notes from the vendor documentation
Same wastewater-pH case study uses caustic dosing chemical into the same polyethylene tank system.
Materials documented for this service
- Polyethylene
Products cited for this service
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| Caustic dosing equipment | ProMinent Fluid Controls metering pumps dose caustic into the Snyder 4,500-gallon double-wall polyethylene holding tank under closed-loop PLC control | LibertyCES field case study: Automated Wastewater pH Treatment System |
| Target compliance range | Caustic dosing brings inflow from pH 3.3 to a consistent 5.5-6.5 compliant discharge range | LibertyCES field case study: Automated Wastewater pH Treatment System |
| PLC controller | ProMinent Dialog X PLC controller manages closed-loop dosing | LibertyCES field case study: Automated Wastewater pH Treatment System |
Dosing caustic without closed-loop pH feedback risks overshooting past the 5.5-6.5 compliant window into an over-alkaline discharge — a new compliance failure, not a fix. The case study's non-contact radar level sensor plus inline pH sensor exist specifically to prevent that overshoot.
The caustic dosing chemical is the corrective input, not a fire-and-forget one — dose too little and the stream stays out of compliance, dose too much without closed-loop feedback and you've created a new pH-overshoot violation on the other end of the scale. The same tank and dosing hardware handle both acidic and caustic wastewater streams; what changes is the control logic around them, not the tank material.
Every material and product claim on this page traces to real, vendor-published documentation on file with LibertyCES. Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm current specifications with the manufacturer and request a spec review before final specification.
FAQ
Can Wastewater Tank handle Caustics/Bases?
Same wastewater-pH case study uses caustic dosing chemical into the same polyethylene tank system.
What wetted materials should Wastewater Tank use in Caustics/Bases service?
Materials documented for this service: Polyethylene. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a spec review before final specification.
Which Caustics/Bases chemicals does this cover?
Named chemicals in this documentation: Caustic dosing chemical (NaOH-class).
Which Wastewater Tank models are documented for Caustics/Bases?
Documented examples include Snyder Wastewater/Chemical Feed Station Tanks.
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated