Tag: frequently asked questions
1. Introduction In the water and wastewater industry, the failure of screw pumps—whether large Archimedes lift pumps or progressive cavity sludge pumps—often stems not from hydraulic inadequacy, but from thermal mismanagement of the drive system. A surprising statistic from motor reliability studies indicates that for every 10°C rise in operating temperature above the rated limit, […]
FACILITY BASIC INFORMATION Plant Name: Davenport Water Pollution Control Plant (WPC) Location: 2606 South Concord Street, Davenport, Scott County, Iowa Operating Authority: City of Davenport Public Works Design Capacity: 26.0 MGD (Average Dry Weather) / 60+ MGD (Peak Hydraulic) Current Average Flow: ~22-24 MGD Population Served: ~140,000 (Regional Service Area) Service Area: City of Davenport, […]
Introduction In the realm of municipal wastewater treatment and industrial sludge handling, the failure of a positive displacement pump during its first month of operation is rarely a manufacturing defect; it is almost invariably a failure of specification or startup protocol. Engineers often treat positive displacement (PD) pumps like centrifugal pumps, assuming a “bump and […]
FACILITY BASIC INFORMATION Plant Name: Hanover Park Water Reclamation Plant (WRP) Location: Hanover Park, Cook County, Illinois Operating Authority: Metropolitan Water Reclamation District of Greater Chicago (MWRD) Design Capacity: 12.0 MGD Current Average Flow: ~8.5 MGD Population Served: ~59,000 residents Service Area: Northwest Cook County (Hanover Park, Schaumburg, Hoffman Estates, Streamwood) Receiving Water Body: West […]
Introduction In municipal wastewater lift stations and industrial effluent sumps, the submersible pump is often the most critical, yet least visible, asset. Because these units operate beneath the liquid surface, visual inspection during operation is impossible. Consequently, engineers and operators must rely heavily on external data and performance anomalies to identify impending failures. A surprising […]
Clarifier Tanks: How They Separate Solids in Treatment Article Overview Article Type: Informational Primary Goal: Explain how clarifier tanks remove and concentrate suspended solids in wastewater, provide the engineering principles and design parameters used to size and operate clarifiers, and give practical troubleshooting, retrofit, and vendor selection guidance for municipal and industrial wastewater professionals Who […]
Location: Staten Island, New York | Authority: NYC Department of Environmental Protection (DEP) FACILITY BASIC INFORMATION Plant Name: Oakwood Beach Wastewater Resource Recovery Facility (WRRF) Location: 751 Mill Road, Staten Island, Richmond County, NY 10306 Operating Authority: New York City Department of Environmental Protection (NYC DEP) Design Capacity (Dry Weather): 40 MGD Wet Weather Capacity: […]
Introduction In high-volume municipal flood control, stormwater management, and industrial water transport, the axial flow “propeller” pump is the workhorse of the hydraulic world. However, their unique specific speed characteristics and sensitivity to intake conditions make them prone to issues that differ significantly from standard centrifugal pumps. Engineers and operators frequently overlook the subtle precursors […]
FACILITY BASIC INFORMATION Plant Name: East Side Water Pollution Control Facility (East Side WPCF) Location: 695 Seaview Avenue, Bridgeport, Fairfield County, Connecticut Operating Authority: Bridgeport Water Pollution Control Authority (WPCA) / Contract Operator: Inframark Design Capacity: 10.0 MGD (Average Daily Flow) / 24.0 MGD (Peak Secondary) Service Area: East Side of Bridgeport, portions of Trumbull […]
FACILITY BASIC INFORMATION Plant Name: East Shore Water Pollution Control Facility Location: New Haven, New Haven County, Connecticut Operating Authority: Greater New Haven Water Pollution Control Authority (GNHWPCA) Design Capacity: 40 MGD (Average Daily Flow) Peak Wet Weather Capacity: 100+ MGD (Primary Treatment) Population Served: Approx. 200,000 residents Service Area: New Haven, East Haven, Hamden, […]