Tag: Engineering
Introduction The failure of positive displacement pumps in municipal wastewater applications often occurs within the first 100 hours of operation, not due to manufacturing defects, but due to improper startup procedures and system integration oversights. Unlike centrifugal pumps, which may forgive a closed discharge valve for a short period, a rotary lobe pump operating against […]
FACILITY BASIC INFORMATION Plant Name: Great Lakes Water Authority Water Resource Recovery Facility (formerly Detroit Wastewater Treatment Plant) Location: 9300 West Jefferson Avenue, Detroit, Wayne County, Michigan Operating Authority: Great Lakes Water Authority (GLWA) Design Capacity: 1,700 MGD (Primary Treatment Peak), 930 MGD (Secondary Treatment Peak) Current Average Flow: ~615 MGD Population Served: ~2.8 million […]
The Authoritative Technical Resource for Engineers and Operators FACILITY BASIC INFORMATION Plant Name: James C. Kirie Water Reclamation Plant (Kirie WRP) Location: 701 West Oakton Street, Des Plaines, Cook County, Illinois Operating Authority: Metropolitan Water Reclamation District of Greater Chicago (MWRD) Design Average Capacity: 52 MGD Design Maximum Flow: 110 MGD Population Served: ~217,000 residents […]
FACILITY BASIC INFORMATION Plant Name: North District Wastewater Treatment Plant (NDWWTP) Location: 2575 NE 151st Street, North Miami, Miami-Dade County, Florida Operating Authority: Miami-Dade Water and Sewer Department (WASD) Design Capacity: 120.0 MGD (Annual Average Daily Flow) Current Average Flow: ~85-95 MGD Population Served: Approx. 2.4 million (System-wide), NDWWTP serves Northern region Service Area: North […]
Introduction In municipal and industrial water treatment, diaphragm pumps—whether Air-Operated Double Diaphragm (AODD), solenoid metering, or mechanically actuated—are the workhorses of chemical delivery and sludge handling. Yet, they are frequently the source of disproportionate operational headaches. A surprising industry statistic suggests that while chemical feed systems often represent less than 5% of a plant’s capital […]
The authoritative technical profile for the Southwest’s largest wastewater treatment facility. FACILITY BASIC INFORMATION Plant Name: Hyperion Water Reclamation Plant (HWRP) Location: 12000 Vista del Mar, Playa del Rey, Los Angeles, CA 90293 Operating Authority: LA Sanitation & Environment (LASAN) / City of Los Angeles Design Capacity: 450 MGD (dry weather) / 800 MGD (peak […]
Introduction to Submersible Pump Metallurgy One of the most persistent and costly challenges in modern wastewater management is the premature degradation of submersible pumping equipment due to shifting influent chemistry. As water conservation efforts reduce flow rates, wastewater becomes more concentrated. Simultaneously, longer retention times in force mains and collection basins accelerate septicization, leading to […]
Introduction In municipal water and wastewater treatment, the centrifugal pump is the workhorse of the hydraulic process. However, industry data suggests that nearly 40% of rotating equipment failures can be traced back to errors committed during installation and initial startup. For consulting engineers and plant superintendents, the phase between physical installation and operational turnover is […]
Chlorine Disinfection for Water Treatment: Safety and Effectiveness Chlorine disinfection water remains the workhorse for municipal drinking and wastewater systems because it delivers rapid inactivation of many pathogens and a persistent distribution residual. This article gives engineers and operators practical, implementation-focused guidance on how chlorine inactivates organisms, CT calculations with worked examples, dosing and contact […]
FACILITY BASIC INFORMATION Plant Name: Metropolitan Wastewater Treatment Plant (Commonly: Metro Plant) Location: 2400 Childs Road, Saint Paul, MN 55106 (Serving Minneapolis and the Region) Operating Authority: Metropolitan Council Environmental Services (MCES) Design Capacity: 214 MGD (Average Wet Weather) / Peak Hydraulic Capacity > 600 MGD Current Average Flow: ~170 – 180 MGD Population Served: […]