Tag: pumps
1. INTRODUCTION The sound of a check valve slamming shut—resembling a sledgehammer striking the pipe—is more than a nuisance; it is an audible indicator of kinetic energy rapidly converting to pressure energy, potentially exceeding the structural limits of the piping system. For municipal and industrial engineers, the selection of check valves is the primary line […]
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 […]
Introduction: The Role of AODD Pumps in Water & Wastewater Infrastructure In the complex hydraulic architecture of municipal and industrial water and wastewater treatment plants, centrifugal pumps often command the most attention due to their volume handling capabilities. However, Air-Operated Double Diaphragm (AODD) pumps serve as the critical auxiliary workhorses that enable the precise handling […]
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 […]
1. Introduction Rotary lobe pumps represent a critical category of positive displacement (PD) equipment within the water and wastewater infrastructure. Unlike centrifugal pumps, which rely on kinetic energy to move fluid, rotary lobe pumps utilize the mechanical action of counter-rotating elements to trap and displace discrete volumes of fluid. This fundamental difference in operating principle […]
INTRODUCTION The handling of thickened sludge, grit, and high-solids wastewater represents one of the highest Operational Expenditure (OPEX) categories in modern treatment facilities. Engineers are frequently tasked with selecting positive displacement technology that balances hydraulic efficiency with solids handling capability. A single misapplication in this part of the process—such as specifying a pump with inadequate […]
1. Introduction: The Role of Progressive Cavity Pumps in Water & Wastewater In the complex hydraulic architecture of municipal and industrial water treatment facilities, the Progressive Cavity (PC) pump—often referred to as a helical rotor pump or eccentric screw pump—occupies a critical operational niche. Unlike centrifugal pumps, which rely on kinetic energy to move fluid […]
1. INTRODUCTION The “flushable” wipe epidemic and the increasing fibrous load in modern wastewater have fundamentally changed the operational risk profile for lift stations and headworks. For municipal engineers and plant directors, the cost of derragging pumps is no longer just a maintenance nuisance—it is a significant operational expenditure (OPEX) driver and a safety hazard. […]
Introduction For municipal and industrial treatment plant engineers, solids handling frequently represents the single largest operational cost center, often accounting for 40% to 50% of total plant O&M budgets. While liquid stream processes often garner the most design attention, the failure to properly specify dewatering equipment creates a bottleneck that can jeopardize regulatory compliance […]
Introduction The vertical turbine pump (VTP) serves as a cornerstone of fluid movement in municipal water and wastewater infrastructure. Unlike horizontal pumps, which require significant floor space and rely on positive suction head often provided by gravity or booster systems, vertical turbine pumps are designed to operate submerged, utilizing the fluid source itself to provide […]