Tag: water
Introduction In the municipal water and wastewater sector, the butterfly valve is the workhorse of isolation and flow control for large-diameter piping. However, a pervasive issue continues to plague capital improvement projects: the “specification inertia” where engineers copy-paste valve specifications without re-evaluating the current manufacturing landscape. This often leads to suboptimal lifecycle performance, particularly regarding […]
The Modified Ludzack-Ettinger Process: Optimizing Nitrogen Removal Fundamentals of the Modified Ludzack-Ettinger Process When it comes to nitrogen removal, the modified Ludzack-Ettinger process is like that secret ingredient in grandma's famous recipe — you know it makes all the difference, but you just can’t put your finger on why. This process isn’t just a fancy […]
Introduction In the complex hydraulic landscape of municipal and industrial water and wastewater treatment, the peristaltic pump—often referred to as a hose pump or tube pump—occupies a critical niche. Unlike centrifugal pumps that rely on kinetic energy, or other positive displacement pumps that utilize rotors, gears, or pistons, the peristaltic pump operates on the principle […]
Introduction to PLC & Control Platforms in Water & Wastewater In the municipal and industrial water sector, the Programmable Logic Controller (PLC)—often evolving into the Programmable Automation Controller (PAC)—serves as the central nervous system of treatment and distribution infrastructure. Unlike discrete manufacturing, where systems may shut down for retooling, water and wastewater treatment plants (WTPs […]
Introduction In the realm of municipal and industrial wastewater management, the failure of a grinder pump due to ragging or jamming is rarely a minor inconvenience—it is a distinct operational hazard that leads to Sanitary Sewer Overflows (SSOs), costly emergency call-outs, and accelerated equipment degradation. With the increasing prevalence of “non-flushable” wipes and high-tensile synthetic […]
1. Introduction Biogas systems serve as the critical interface between anaerobic digestion processes and energy recovery or disposal mechanisms in municipal and industrial wastewater treatment facilities. While historically viewed merely as a waste byproduct requiring safe disposal, biogas—comprising primarily methane (CH4) and carbon dioxide (CO2)—is now universally recognized as a valuable renewable energy resource. The […]
Introduction to Pressure Relief in Hydraulic Systems In municipal and industrial fluid handling, the difference between a reliable system and a catastrophic failure often rests on a single component: the pressure relief valve. Engineers frequently design pumping stations and transmission mains focusing heavily on pump curves and pipe schedules, yet they often treat surge protection […]
Introduction The escalation of non-dispersible solids in municipal wastewater streams—colloquially known as the “flushable wipes” crisis—has fundamentally altered how consulting engineers and utility directors approach pump station design. A decade ago, 3-inch solids handling capacity was sufficient for most municipal lift stations. Today, the tensile strength of modern synthetic fibers creates roping and matting that […]
Introduction One of the most persistent vulnerabilities in municipal wastewater infrastructure is the susceptibility of dry well lift stations to flooding. Traditional configurations utilizing standard TEFC (Totally Enclosed Fan Cooled) motors coupled to pumps via long drive shafts offer excellent maintenance access but catastrophic failure modes during flood events. When a dry well floods due […]
Managing Water Treatment Waste: Best Practices for Environmental Compliance Regulatory Framework for Water Treatment Waste Navigating the regulatory maze surrounding water treatment waste can feel like trying to find your way through a cornfield blindfolded. With an estimated 80% of the world's wastewater being discharged without treatment, the stakes are higher than ever for municipalities […]