Tag: process
Nitrification and Denitrification: Essential Processes for Nutrient Removal In the quest for cleaner water and sustainable wastewater management, understanding the nitrification denitrification process is crucial. These two interconnected biological processes play a vital role in the nitrogen cycle, helping to convert harmful ammonia into less toxic forms while significantly improving effluent quality. In this post, […]
1) INTRODUCTION UV disinfection systems are frequently over-simplified during the preliminary design phase as “pipes with lights,” leading to significant operational headaches down the line. A common challenge engineers face is distinguishing between conventional UV reactor designs and newer optical technologies when high-level pathogen log removal (e.g., Adenovirus) or difficult water matrices are involved. Statistics […]
Introduction Liquid storage and containment are fundamental to the integrity of any treatment plant or distribution network, yet they are often treated as static commodities rather than dynamic process vessels. For municipal consulting engineers and utility directors, the failure of a storage tank represents more than just a leak; it signifies a catastrophic breach of […]
The authoritative technical resource for the engineering and operational details of Pima County’s central wastewater asset. FACILITY BASIC INFORMATION Official Name: Agua Nueva Wastewater Reclamation Facility (Agua Nueva WRF) Former Name: Roger Road Wastewater Reclamation Facility Location: 2947 W. Calle Agua Nueva, Tucson, Pima County, Arizona Operating Authority: Pima County Regional Wastewater Reclamation Department (RWRD) […]
Introduction In the high-stakes environment of municipal and industrial wastewater treatment, few decisions impact long-term operational costs (OPEX) as significantly as the selection of oxidation and gas handling systems. Engineers frequently underestimate the lifecycle implications of dielectric technologies and cooling requirements when specifying ozone generation systems for disinfection, micropollutant removal, or sludge handling. A specification […]
FACILITY BASIC INFORMATION Plant Name: Seneca Water Resource Recovery Facility (formerly Seneca WWTP)Location: Germantown, Montgomery County, MarylandOperating Authority: Washington Suburban Sanitary Commission (WSSC Water)Design Capacity: 26.0 MGD (Million Gallons per Day)Current Average Flow: ~16-19 MGDPopulation Served: Approx. 180,000 residentsService Area: Northern Montgomery County (Germantown, Gaithersburg, Clarksburg)Receiving Water Body: Great Seneca Creek (Tributary to Potomac River)NPDES […]
FACILITY BASIC INFORMATION Plant Name: Western Branch Wastewater Treatment Plant Location: Upper Marlboro, Prince George’s County, Maryland Operating Authority: WSSC Water (Washington Suburban Sanitary Commission) Design Capacity: 30.0 MGD Current Average Flow: ~20-24 MGD Population Served: ~275,000 residents Service Area: Central Prince George’s County (Upper Marlboro, Bowie, Largo) Receiving Water Body: Western Branch of the […]
1. INTRODUCTION The trickling filter is one of the oldest and most established biological treatment processes in municipal and industrial wastewater applications. Classified as an attached-growth (or fixed-film) process, a trickling filter operates by passing wastewater over a stationary medium—historically rock or slag, but increasingly structured plastic modules—where a biofilm establishes itself. This biomass metabolizes […]
Introduction For municipal and industrial treatment plant engineers, solids handling frequently represents the most volatile component of operational expenditure (OPEX). While the liquid train often receives the bulk of design attention, the “tail of the plant”—sludge thickening, dewatering, and disposal—accounts for approximately 40% to 50% of total treatment costs. When evaluating the Top 10 Sludge […]
Introduction For municipal and industrial wastewater engineers, the decision to implement Moving Bed Biofilm Reactor (MBBR) or Integrated Fixed-Film Activated Sludge (IFAS) technologies usually stems from a singular, pressing constraint: the need to increase biological treatment capacity within a fixed, often land-locked footprint. While the concept of biofilm carriers is well-established, the “commodity” perception of […]