Tag: Infrastructure
Introduction Municipal engineers frequently underestimate the complexity of chemical injection at remote lift stations. While the primary sewage pumps receive the bulk of the design attention, the auxiliary chemical feed systems are often the critical defense against the wastewater industry’s most pervasive enemies: hydrogen sulfide ($H_2S$) corrosion, noxious odors, and Fat, Oil, and Grease (FOG) […]
FACILITY BASIC INFORMATION Plant Name: East Jefferson Wastewater Treatment Plant (EJEFF) Location: Metairie, Jefferson Parish, Louisiana Operating Authority: Jefferson Parish Department of Sewerage Design Capacity: 62.4 MGD (Average Daily Flow) Peak Hydraulic Capacity: >100 MGD Population Served: ~250,000 residents Service Area: East Bank of Jefferson Parish (Metairie, River Ridge, Harahan, Kenner) Receiving Water Body: Mississippi […]
Introduction One of the most persistent challenges facing municipal engineers today is the accurate monitoring of Combined Sewer Overflows (CSOs) and stormwater systems under regulatory consent decrees. The engineering challenge is multifaceted: equipment must survive in harsh, rag-prone environments, operate reliably during rapid hydraulic changes, and provide data accurate enough to satisfy environmental agencies. A […]
FACILITY BASIC INFORMATION Plant Name: South Treatment Plant (South Plant) Location: Renton, King County, Washington Operating Authority: King County Wastewater Treatment Division (WTD) Design Capacity (AWWF): 115 MGD (Average Wet Weather Flow) Peak Hydraulic Capacity: 325 MGD Current Average Flow: ~90 MGD (Combined Annual Average) Population Served: Approx. 800,000 residents Service Area: South and East […]
Facility Snapshot Plant Name: Noman M. Cole Jr. Pollution Control Plant (NMCPCP) Location: Lorton, Fairfax County, Virginia Operating Authority: Fairfax County Wastewater Management Program Design Capacity: 67 MGD Treatment Level: Advanced Tertiary (AWT) Receiving Water Body: Pohick Creek (tributary to Gunston Cove/Potomac River) 1. Introduction The Noman M. Cole Jr. Pollution Control Plant (NMCPCP) serves […]
A Technical Review of St. Louis’ Largest Wastewater Infrastructure Asset FACILITY BASIC INFORMATION Plant Name: Bissell Point Wastewater Treatment Plant Location: 10 East Grand Avenue, St. Louis, MO 63147 Operating Authority: Metropolitan St. Louis Sewer District (MSD Project Clear) Design Capacity (Secondary): 210 MGD Peak Hydraulic Capacity: >400 MGD Current Average Flow: ~145 MGD Population […]
Introduction In the transition from traditional cast iron sluice gates to modern fabricated stainless steel and aluminum slide gates, municipal engineers often find themselves evaluating two dominant North American manufacturers. The analysis of Golden Harvest vs Whipps – C for Gates: Pros/Cons & Best-Fit Applications is a critical exercise for any design engineer or utility […]
Location: Huntersville, Mecklenburg County, North CarolinaOperating Authority: Charlotte WaterDesign Capacity: 12.0 MGD (Million Gallons per Day) 1. Introduction The McDowell Creek Wastewater Treatment Plant (WWTP) serves as a critical environmental safeguard for the rapidly growing northern Mecklenburg County region. Operated by Charlotte Water, this 12-MGD facility is strategically located within the Mountain Island Lake watershed—the […]
Location: Newark, Essex County, New JerseyOperating Authority: Passaic Valley Sewerage CommissionDesign Capacity: 330 MGD (Average) / 720 MGD (Peak)Service Area: 48 Municipalities across 5 Counties 1. INTRODUCTION The Passaic Valley Sewerage Commission (PVSC) Newark Bay Treatment Plant is one of the largest wastewater treatment facilities in the United States and the largest in the Northeast. […]
Introduction The movement of dewatered biosolids, screenings, and grit is often the final bottleneck in modern treatment facilities. While headworks and biological processes receive significant engineering attention, the conveyance of “cake” solids remains a frequent source of operational headaches, from housekeeping nightmares to complete mechanical failures. Engineers tasked with facility upgrades often face a critical […]