Tag: wastewater treatment
Introduction In the hierarchy of water and wastewater treatment equipment, mud valves often occupy the lowest tier of attentionβquite literally sitting at the bottom of sedimentation basins, clarifiers, and reservoirs. Yet, despite their simplicity, they represent a critical failure point. A single seized mud valve in a sedimentation basin can force a utility to drain […]
Centrifugation can deliver compact, continuous thickening and dewatering, but its real-world performance depends on feed conditioning, g force, rotor geometry, and polymer strategy. This guide explains how centrifugation works in wastewater service, compares decanter, disc-stack and tubular options, and gives practical specification metrics, sizing rules, and integration requirements. If you are specifying dewatering for municipal […]
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 […]
Introduction One of the most persistent friction points in wastewater treatment plant design is the misalignment between initial procurement budgets and long-term operating realities. Engineers frequently encounter scenarios where a positive displacement pump is required for high-solids or viscous sludge applications, yet the specification process defaults to the lowest bidder. This approach often ignores the […]
Introduction One of the most expensive misunderstandings in wastewater treatment and industrial fluid handling is the assumption that all pumps behave hydraulically like centrifugal pumps. This misconception is particularly dangerous when applied to positive displacement (PD) technology. While a centrifugal pump simply stops flowing when discharge pressure equals its shutoff head, a progressive cavity (PC) […]
INTRODUCTION In municipal water distribution and wastewater treatment, the vertical turbine pump (VTP) is a workhorse, valued for its efficiency and small footprint. However, when paired with Variable Frequency Drives (VFDs) without rigorous thermal and mechanical analysis, these systems frequently suffer from premature failure. A surprising industry statistic suggests that up to 30% of vertical […]
FACILITY BASIC INFORMATION Plant Name: Northeast Water Resource Recovery Facility (NE WRRF)Location: 7000 N. 70th Street, Lincoln, Lancaster County, NebraskaOperating Authority: City of Lincoln Transportation and Utilities (LTU) – Wastewater SystemDesign Capacity: 22.0 MGD (Expanded Average Daily Flow)Current Average Flow: ~12 – 15 MGD (Variable with load shifting)Population Served: Serves Northern/Eastern Lincoln (City Total: ~295,000)Service […]
The authoritative technical guide to Nebraskaβs largest wastewater treatment and wet-weather control asset. FACILITY BASIC INFORMATION Plant Name: Missouri River Water Resource Recovery Facility (formerly Missouri River WWTP) Location: 5600 South 10th Street, Omaha, Douglas County, Nebraska Operating Authority: City of Omaha Public Works Department Design Capacity (Biological): 62 MGD (Average Daily) Peak Wet Weather […]
The authoritative technical resource for the City of Flint’s primary wastewater treatment infrastructure. FACILITY BASIC INFORMATION Plant Name: City of Flint Water Pollution Control Facilities (WPCF) Location: G-4652 Beecher Road, Flint, Genesee County, Michigan Operating Authority: City of Flint Department of Public Works / Utilities Division Design Capacity: 50 MGD (Dry Weather) Current Average Flow: […]
Location: 1625 Sunset Avenue, Lansing, MI 48917Operating Authority: City of Lansing Public Service Department FACILITY BASIC INFORMATION Plant Name: Lansing Wastewater Treatment Plant (WWTP) Location: Lansing, Ingham County, Michigan Operating Authority: City of Lansing Public Service Department Design Capacity: 40 MGD (Secondary Treatment), 165 MGD (Peak Wet Weather with Retention) Current Average Flow: ~19 MGD […]