INTRODUCTION In the design and operation of municipal and industrial wastewater treatment plants, few components cause more disproportionate downtime relative to their cost than isolation valves. A seized gate valve in a grit chamber or a leaking knife gate in a sludge line can force partial plant shutdowns, bypass pumping scenarios, and significant unplanned maintenance […]
Introduction The operational resilience of a wastewater treatment plant or lift station is often determined not by its pumps, but by the equipment protecting them. With the rise of “flushable” wipes and non-dispersible textiles entering municipal collection systems, the phenomenon of ragging has transitioned from a nuisance to a critical operational failure mode. Industry data […]
Advanced Odor Control Strategies for Wastewater Treatment Facilities Chemical Odor Control Techniques When it comes to odor control for wastewater, the stakes are high. A single whiff of that unmistakable scent can lead to complaints, lost business, and even fines. In fact, studies show that nearly 60% of residents near wastewater facilities report issues related […]
1. Introduction In the hierarchy of fluid handling equipment within municipal and industrial sectors, dewatering pumps occupy a unique and critical position. Unlike permanently installed process pumps designed for steady-state operations within a treatment plant, dewatering pumps are often tasked with transient, emergency, or variable-duty cycles in uncontrolled environments. For the consulting engineer and plant […]
1. Introduction to Disinfection Systems in Water and Wastewater Treatment Disinfection remains the most critical unit process in the protection of public health within municipal and industrial water cycles. In potable water treatment, disinfection serves as the primary barrier against waterborne pathogens, ensuring the inactivation of bacteria, viruses, and protozoa before distribution. In wastewater treatment, […]
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 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 […]
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 […]