Tag: supply
Introduction to Intake Hydraulics For municipal and industrial engineers, the physical geometry of a pump station is often treated as secondary to the selection of the pump itself. However, industry data suggests that nearly 30% of premature pump failures—manifesting as vibration, cavitation damage, and bearing wear—are directly attributable to poor intake conditions rather than mechanical […]
Coagulation and Flocculation: Essential Steps in Water Purification Coagulation flocculation water treatment is the frontline process that decides whether downstream filtration, membranes and disinfection will meet turbidity and DBP precursor targets. This article turns coagulation chemistry into practical decisions—coagulant and polymer selection, rapid mix and flocculation G and time ranges, jar testing and pilot methods, […]
Wastewater Aeration Systems: Improving Treatment Efficiency Aeration system wastewater installations typically consume 45 to 60 percent of a municipal treatment plant energy budget and determine whether biological processes meet effluent nitrogen and BOD targets. This guide gives plant managers, process engineers, and operators a practical roadmap for selecting, designing, operating, retrofitting, and maintaining aeration system […]
Introduction One of the most persistent challenges in municipal and industrial water treatment design is the accurate measurement of fluid velocity and volumetric flow under varying hydraulic conditions. Engineers often default to legacy specifications without re-evaluating the underlying technology, leading to significant lifecycle cost discrepancies. A surprising industry statistic suggests that up to 30% of […]
Location: Oak Creek, Wisconsin | Operator: Veolia Water Milwaukee (for MMSD) FACILITY BASIC INFORMATION Plant Name: South Shore Water Reclamation Facility Location: 8500 South 5th Avenue, Oak Creek, WI 53154 Operating Authority: Milwaukee Metropolitan Sewerage District (MMSD) / Contract Operator: Veolia Water Milwaukee Design Capacity (Average): 85-100 MGD Peak Hydraulic Capacity: 300 MGD Population Served: […]
Understanding Nitrification and Denitrification in Wastewater Treatment Meeting tight effluent nitrogen limits demands a clear grasp of the nitrification denitrification process and how it responds to changing loads, temperature, and carbon availability. This practical guide unpacks the microbial pathways and stoichiometry behind ammonia oxidation and nitrate reduction, provides numeric design and operating ranges for SRT, […]
FACILITY BASIC INFORMATION Plant Name: Western Lake Superior Sanitary District Regional Treatment PlantLocation: Duluth, St. Louis County, MinnesotaOperating Authority: Western Lake Superior Sanitary District (WLSSD)Design Capacity: 43 MGD (Average Wet Weather), ~120+ MGD (Peak)Current Average Flow: ~35-38 MGDPopulation Served: ~135,000 residents + significant industrial baseService Area: 530 square miles (Duluth, Cloquet, Hermantown, Proctor, and surrounding […]
Introduction In municipal and industrial fluid handling, the integrity of a pump station relies not just on the hydraulic mover, but on the monitoring and control loop that governs it. A surprising statistic in water utility management reveals that up to 30% of pump efficiency loss is masked by inaccurate discharge monitoring, leading to undetected […]
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: […]
Introduction In municipal and industrial fluid handling, the horizontal end suction centrifugal pump is the workhorse of the facility. However, the pump itself is only as effective as the control loop that governs it. Engineers often expend significant resources selecting the pump hydraulic curve, yet frequently undervalue the specification of the verification device: the flow […]