Tag: collection

Introduction to PC Pump Intake Hydraulics One of the most persistent and expensive failure modes in municipal wastewater treatment plants involves the premature destruction of progressive cavity (PC) pump stators. While often blamed on “bad rubber” or manufacturing defects, a significant percentage of these failures are actually hydraulic issues rooted in the civil and mechanical […]

Introduction One of the most persistent and costly failures in municipal wastewater collection systems is not the mechanical failure of the pump itself, but the failure of the intake hydraulics. Engineers frequently specify high-efficiency, robust pumping equipment, only to place it into a geometry that guarantees reduced lifespan. A significant percentage of premature bearing failures, […]

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: Max Rhoads Wastewater Treatment PlantLocation: Owensboro, Daviess County, KentuckyOperating Authority: Regional Water Resource Agency (RWRA)Design Capacity: 15.0 MGD (Average Daily Flow)Peak Hydraulic Capacity: ~32.0 MGDPopulation Served: ~100,000 (Regional System)Service Area: City of Owensboro and parts of Daviess CountyReceiving Water Body: Ohio RiverKPDES Permit Number: KY0022713Year Commissioned: 1960s (Major expansion/renovations in […]

The authoritative technical resource for the East Bank facility’s operations, infrastructure, and engineering specifications. FACILITY BASIC INFORMATION Plant Name: East Bank Wastewater Treatment Plant Location: 6000 Russell Street, River Ridge, Jefferson Parish, Louisiana 70123 Operating Authority: Jefferson Parish Department of Sewerage Design Capacity: 36.0 MGD (Average Daily Flow) / 80.0+ MGD (Peak Hydraulic) Current Average […]

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 […]

Also serving the Clark Regional Wastewater District (Bi-Jurisdictional Service Area) FACILITY BASIC INFORMATION Plant Name: Westside Wastewater Treatment Plant Location: 2323 W Mill Plain Blvd, Vancouver, Clark County, WA 98660 Operating Authority: City of Vancouver Public Works Design Capacity (Max Month): 28.3 MGD Peak Hydraulic Capacity: ~60 MGD Current Average Flow: ~21-24 MGD Population Served: […]

Location: Spokane, Washington | Operating Authority: City of Spokane Wastewater Management Department 1. INTRODUCTION The Riverside Park Water Reclamation Facility (RPWRF) serves as the cornerstone of wastewater infrastructure for the Inland Northwest. Located on the banks of the Spokane River, this facility is the largest advanced wastewater treatment plant in Eastern Washington, with a design […]

Introduction The safety and structural integrity of anaerobic digesters rely entirely on the precise management of internal pressures. For decades, the specification of gas safety equipment has largely been a binary choice in the North American market. Engineers evaluating Varec Biogas (Ovivo) vs Shand & Jurs for Digestion applications are navigating a landscape defined by […]

Introduction One of the most frequent points of failure in decentralized wastewater treatment is the misalignment between the chosen technology and the operational reality of the municipality. Engineers often design for steady-state compliance, overlooking the fact that small-to-mid-sized plants—ranging from 0.05 to 2.0 MGD—often face the most volatile hydraulic loading and the leanest staffing levels. […]