Category: Blog

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 […]

MLE Process for Wastewater Treatment: Implementation and Benefits Understanding the MLE Process in Wastewater Treatment When it comes to wastewater treatment, the MLE process isn't just a fancy acronym; it's a game-changer for municipalities looking to enhance their treatment capabilities. Picture this: a city with a population of 100,000 generates about 10 million gallons of […]

Introduction In municipal water distribution and wastewater treatment, the isolation valve is the most critical yet frequently overlooked asset. Industry data suggests that up to 20% of installed gate valves in North America are inoperable or pass water when isolation is attempted during an emergency. For the consulting engineer or utility director, the choice of […]

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 […]

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 […]

Introduction In the municipal wastewater sector, a single incorrect valve specification can lead to catastrophic ragging, seized actuation, and thousands of dollars in unscheduled maintenance. Engineers often default to “tried and true” manufacturers, but nuances in product lines and specification details can obscure the best choice for specific hydraulic conditions. A frequent point of discussion […]

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 […]

Introduction In the design of municipal wastewater treatment plants and pumping stations, the eccentric plug valve serves as the workhorse for isolation and throttling of sludge, slurry, and raw sewage. However, a persistent challenge for consulting engineers is navigating the specific mechanical nuances between major manufacturers. Often, specifications are copied from previous projects without a […]

Introduction In municipal water and wastewater treatment infrastructure, valves act as the critical control points for hydraulic stability, process isolation, and flow regulation. A surprising statistic in utility asset management reveals that while valves often constitute less than 10% of a plant’s capital cost, they account for upwards of 25% of the maintenance budget over […]

Introduction The substitution request is a familiar scenario for municipal consulting engineers and plant superintendents: a specification calls for a domestic standard, yet a contractor submits an international alternative to reduce capital costs. This creates a critical decision point regarding Crispin Valve vs DHC International for Butterfly Valves: Pros/Cons & Best-Fit Applications. While approximately 70% […]