Wastewater Treatment Pumps (Headworks→Clarification→Disinfection)
WWTPs run on reliable solids handling and validated chemical dosing. We specify submersible non-clog/chopper for headworks and lift, self-priming trash for above-grade maintenance, progressive-cavity for sludge feed, peristaltic for abrasive/air-entrained streams, and digital/peristaltic metering for coagulant, polymer, pH, and disinfection. Corrosives/oxidizers get mag-drive sealless for safe containment.
Best-Fit Pumps Across the Plant
| WWTP Area | Best Pump Type | Recommended Brands | Why It’s Best |
|---|---|---|---|
| Headworks / lift stations (rags/wipes) | Submersible non-clog / chopper | BJM; Goulds | Handles rags & FOG; guide-rail pull for rapid service |
| Return/Waste Activated Sludge | Progressive-cavity (low-shear) | Netzsch | Smooth, pulse-free flow that protects floc |
| Gritty primary/secondary transfer | Self-priming trash or peristaltic | Gorman-Rupp; Graco / LMI KML-KBL | Fast clean-out above grade or hose-wetted abrasion handling |
| Polymer / coagulant / pH / ORP | Digital diaphragm / Peristaltic metering | LMI PD/TD & KML/KBL; Neptune; Emec; Walchem (control) | High turndown accuracy with validation hardware and control I/O |
| Hypo/bleach, bisulfite, alum, ferric | Mag-drive sealless or metering (materials matched) | Finish Thompson / Iwaki; LMI / Neptune / Emec | Leak-free containment; wetted parts aligned to oxidizers/corrosives |
| Drum/IBC chemical handling | Drum/IBC pump + columns/quills | Flux; J.L. Wingert | Ergonomic loading with calibration and safe injection hardware |
| Plant utilities / reuse | Inline / end-suction centrifugal | Grundfos; Goulds; Griswold | Efficient pressure control for washdown, filter backwash, and reuse loops |
| Portable bypass / emergency | AODD (bolted) | Wilden; Yamada; ARO | Self-priming, run-dry tolerant; field-ready flexibility |
Instrumentation: pH/ORP and residual analyzers (Walchem), level devices, and lead/lag controls with telemetry improve compliance and uptime.
Recommended WWTP Packages (Placeholders)
Tip Share flows/heads, MLSS/TS%, ragging history, chem list & temp, level strategy, and panel I/O. We’ll deliver curves and a code-ready BOM.
How We Engineer WWTP Duty
- Solids handling: non-clog/chopper hydraulics sized to particle and FOG.
- Low-shear sludge: PC pumps with VFD protect floc and dewatering efficiency.
- Chemical validation: back-pressure, anti-siphon, columns, and quills.
- Containment: mag-drive for oxidizers and corrosives; materials to SDS.
- Uptime: lead/lag, alarms, and telemetry; easy service access by design.
Common WWTP Uses
- Headworks & lift stations
- Primary/secondary transfer
- RAS/WAS feed
- Polymer/coagulant dosing
- Disinfection & dechlor
- pH/ORP control
- Filter backwash
- Reuse/washdown
- Sumps & containment
- Bypass/emergency service
Compliance-Ready. Serviceable. Built for Uptime.
Send area schematics, duty points, MLSS/TS%, chemical list, temperature, controls I/O, and maintenance preferences. We’ll quote a complete, code-ready package with curves and submittals.
Wastewater Treatment FAQs
Why PC pumps for sludge feed?
PC provides smooth, low-shear flow that maintains floc structure and improves thickener/dewatering performance.
How do you validate chemical dosing?
Back-pressure valves, anti-siphon checks, calibration columns, and injection quills—tied to Walchem control I/O for alarms and turndown accuracy.
Self-priming vs. submersible in WWTPs?
Self-primers excel where above-grade maintenance and quick clean-out are key; submersibles fit compact pits and run quietly with guide-rail service.