Tag: frequently asked questions

Feb 24
Commissioning Double Disc Pump: Startup Checklist and Acceptance Tests

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 […]

Feb 24
Metropolitan Water Reclamation District Hanover Park Water Reclamation Plant

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 […]

Feb 24
Submersible Troubleshooting: Symptoms

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 […]

Feb 23
Clarifier Tanks: How They Separate Solids in Treatment

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 […]

Feb 21
Oakwood Beach Wastewater Treatment Plant Staten Island

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: […]

Feb 21
Propeller Pump Troubleshooting: Symptoms

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 […]

Feb 21
City Of Bridgeport East Side Wastewater Treatment Plant

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 […]

Feb 21
Greater New Haven Water Pollution Control Authority East Shore Facility

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, […]

Feb 21
Retrofit vs Replace: When to Upgrade Misc. Pumps in Aging Stations

Introduction In municipal and industrial water treatment infrastructure, the reliability of auxiliary equipment often dictates the resilience of the entire process. While massive raw sewage lift pumps garner the majority of capital planning attention, the failure of miscellaneous pumps—seal water systems, polymer feed pumps, sampling units, and dry-pit sump pumps—frequently triggers permit violations or costly […]

Feb 20
Selection Guide: How to Specify Dewatering Pump for Wastewater Treatment Plants

Introduction In the hierarchy of wastewater treatment equipment, process pumps often receive the bulk of engineering attention. However, the humble dewatering pump acts as the critical fail-safe for plant operations. Engineers frequently encounter a scenario where a tank needs emergency draining, or a gallery floods during a storm event, only to find the portable or […]