Tag: water
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 […]
Technical Note: The facility commonly referred to in the context of the Agua Fria River discharge and operated by the City of Phoenix is officially designated as the 91st Avenue Multi-Cities Wastewater Treatment Plant. It discharges into the Salt River immediately upstream of the Agua Fria River confluence via the Tres Rios Wetlands. This article […]
Location: Laurel, Anne Arundel County, Maryland | Operating Authority: Anne Arundel County Department of Public Works (DPW) 1. Introduction The Parkway Wastewater Treatment Plant (WWTP) is a critical infrastructure asset within the Anne Arundel County Department of Public Works (DPW) system, serving the rapidly growing western portion of the county. Commissioned originally in the 1980s […]
INTRODUCTION In the realm of anaerobic digestion and cogeneration, the protection of downstream assets—whether internal combustion engines (ICE), boilers, or renewable natural gas (RNG) membranes—is paramount. Engineers often face a critical disconnect: the anaerobic digester produces valuable fuel, but that fuel is laden with hydrogen sulfide (H2S), siloxanes, and moisture that can destroy capital equipment […]
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 […]