Category: Blog

Introduction A multi-million dollar biological nutrient removal (BNR) plant upgrade can fail to meet effluent limits not because the pumps are undersized or the concrete is flawed, but because the microbial ecosystem inside the bioreactors is misaligned with the facility’s operating conditions. Understanding Wastewater Microbiology: Key Organisms and Their Role in Treatment is arguably the […]

Introduction A staggering 50% to 70% of a typical municipal wastewater treatment plant’s energy budget is consumed by a single process: biological aeration. As effluent discharge permits tighten—specifically enforcing stringent Total Nitrogen (TN) and Total Phosphorus (TP) limits—engineers are moving away from brute-force biological oxygen demand (BOD) removal. Selecting the correct process architecture has never […]

INTRODUCTION Gravity separation remains the workhorse of physical-chemical and biological treatment, yet it is often the most critical bottleneck in a plant. A mere 1% drop in secondary clarifier efficiency can drastically increase total suspended solids (TSS) carryover, overwhelming tertiary filters, disrupting UV disinfection transmittance, and potentially violating discharge permits. Navigating the landscape of the […]

Introduction: The Complex Landscape of PFAS Management The transition from regulating conventional pollutants in parts-per-million (ppm) to treating per- and polyfluoroalkyl substances (PFAS) in parts-per-trillion (ppt) or even parts-per-quadrillion (ppq) represents one of the most significant engineering challenges in modern environmental history. For consulting engineers, plant operators, and public works directors, understanding PFAS in Wastewater: […]

Introduction to Plant-Wide Equipment Integration In municipal and industrial facilities, a poorly specified unit process can cascade into massive downstream failures, driving up chemical costs, increasing energy consumption, and risking environmental compliance. Navigating these interconnected systems requires a foundational understanding of Water Treatment Equipment: Essential Guide for Plant Operations. A modern treatment facility operates as […]

Introduction Designing systems for Agricultural Wastewater Treatment: Methods and Best Practices represents one of the most formidable challenges in the environmental engineering sector. Unlike municipal sewage, which typically presents with Biochemical Oxygen Demand (BOD) in the hundreds of milligrams per liter (mg/L), agricultural effluents—from Concentrated Animal Feeding Operations (CAFOs) to meat processing plants—routinely exhibit BOD […]

Introduction In municipal and industrial biological treatment facilities, aeration systems routinely account for 50% to 60% of total plant energy consumption. A poorly specified blower package directly translates to hundreds of thousands of dollars in wasted electrical expenditures over a standard 20-year lifecycle. Despite this immense operational expense, the evaluation and selection of the Top […]

INTRODUCTION One of the most common, yet catastrophic, process failures engineers and operators encounter in biological wastewater treatment is the sudden loss of nitrification. Often, the culprit is not toxicity or temperature, but a failure to adequately design for pH and Alkalinity Control in Wastewater Treatment. While pH and alkalinity are frequently discussed interchangeably, treating […]

Introduction: The Shift to Ultraviolet Disinfection One of the most persistent challenges municipal and industrial wastewater engineers face is balancing stringent disinfection requirements with the environmental and safety risks associated with chemical treatment. For decades, chlorine contact basins were the default standard. However, the regulatory tightening around disinfection byproducts (DBPs), the stringent limits on total […]

INTRODUCTION In municipal and industrial water infrastructure, an unyielding truth governs plant reliability: a multimillion-dollar treatment facility will routinely fail to meet compliance if a $5,000 chemical dosing skid underperforms. When addressing Chemical Feed Systems in Water Treatment: Design and Selection, engineers are often forced to balance severe operational extremes. These systems must consistently deliver […]