Tag: water

INTRODUCTION In municipal and industrial wastewater treatment, biological aeration typically accounts for 50% to 60% of total facility power consumption. As energy costs escalate and sustainability mandates become more stringent, engineers are consistently tasked with driving down operating expenditures. However, reducing blower output indiscriminately often leads to critical process failures, including ammonia permit violations, poor […]

INTRODUCTION One of the most dangerous and costly mistakes an engineer can make in municipal or industrial water treatment design is treating chemical feed piping like standard water infrastructure. Specifying a generic 316 stainless steel valve for a seemingly routine disinfection or coagulation process frequently results in rapid, catastrophic failure. Dealing with Control Valves for […]

This case study looks inside detroit water and sewerage operations to show how a large urban utility coordinates treatment, distribution, and financing at scale. We unpack the governance split with the Great Lakes Water Authority, the treatment train and SCADA strategies used to protect drinking water quality, and collection system practices for CSO control and […]

INTRODUCTION In municipal water distribution, wastewater collection, and industrial treatment processes, fluid containment is paramount. Yet, when commissioning new pipelines or upgrading pump stations, engineers and operators frequently encounter unexpected hydrostatic test failures or premature fugitive emissions. When analyzing these failures, experts routinely point to Valves – Construction Service Installation Mistakes That Cause Leaks as […]

INTRODUCTION One of the most frequent and costly errors in municipal water and wastewater engineering is sizing a control valve to match the adjacent pipe diameter without performing proper hydraulic calculations. This “line-sizing” approach routinely results in valves that operate nearly closed, leading to severe control hunting, premature seat wear, and destructive cavitation. To avoid […]

INTRODUCTION One of the most persistent challenges in municipal water distribution engineering is maintaining water quality at the extremities of the system. Dead-end mains, low-demand subdivisions, and oversized pipes inevitably lead to high water age, loss of disinfectant residuals, and the formation of dangerous Disinfection Byproducts (DBPs) such as Trihalomethanes (THMs) and Haloacetic Acids (HAAs). […]

Detroit water and sewer present a live, technical example of how aging pipes, combined sewers, and fragmented governance create chronic operational and financial risk. This case study synthesizes Detroit-specific diagnostics, the governance split with the Great Lakes Water Authority, funding pathways, and the technical interventions deployed to date. Expect concrete metrics, procurement and financing guidance, […]

INTRODUCTION For municipal consulting engineers, plant superintendents, and operators, a leaking pressure relief valve (PRV) is far more than a nuisance—it is a continuous drain on operational efficiency, an environmental compliance risk, and an indicator of compromised system safety. While operators frequently blame the valve manufacturer when weeping or fugitive emissions occur, the engineering reality […]

INTRODUCTION In municipal and industrial water and wastewater treatment plants, valves represent the most numerous moving assets within the process train. Despite their ubiquity, improper valve selection and neglected lifecycle maintenance contribute to an estimated 20% to 30% of system downtime events. For utility directors, plant superintendents, and design engineers, mastering the principles of Valves […]

Introduction One of the most common, yet catastrophic, oversight errors in municipal water and industrial wastewater treatment plants occurs at the chemical feed skid. Engineers often spend countless hours specifying the perfect metering pump or chemically inert control valve, only to default to standard-issue automation. When dealing with highly corrosive substances like sodium hypochlorite, ferric […]