Tag: water
INTRODUCTION In municipal water and wastewater treatment, the failure of a chemical feed system is rarely a minor inconvenience; it is often a reportable event. According to industry reliability studies, chemical dosing failures account for a significant percentage of process upsets, leading to disinfection by-product (DBP) violations, coagulation failures, or pH excursions. For the design […]
Introduction Membrane Bioreactor (MBR) systems represent a definitive convergence of biological wastewater treatment and advanced membrane filtration. In the landscape of municipal and industrial wastewater management, MBR technology has transitioned from a niche solution for difficult-to-treat effluents to a standard unit process for facilities requiring high-quality effluent, water reuse capabilities, or significant footprint reductions. At […]
The authoritative technical resource for the Moccasin Bend facility operations, engineering, and compliance. FACILITY BASIC INFORMATION Plant Name: Moccasin Bend Wastewater Treatment Plant (MBWWTP) Location: 455 Moccasin Bend Road, Chattanooga, Hamilton County, Tennessee Operating Authority: City of Chattanooga, Waste Resources Division Design Capacity: 140 MGD (Hydraulic); ~78 MGD (Secondary Biological) Current Average Flow: ~60-70 MGD […]
Introduction In the specification of wastewater treatment physical separation equipment—specifically secondary clarification, gravity thickening, and grit removal systems—engineers often reach a critical decision point that dictates plant reliability for decades. The choice frequently boils down to two distinct philosophies: the standardized, process-optimized approach typical of major global OEMs (like Evoqua/Xylem) versus the heavy-duty, custom-fabrication approach […]
The authoritative technical resource for engineers, operators, and industry professionals. FACILITY BASIC INFORMATION Plant Name: Central Wastewater Treatment Plant (CWWTP) Location: 1600 2nd Avenue North, Nashville, Davidson County, Tennessee Operating Authority: Metro Water Services (MWS) Design Capacity (Average): 180 MGD Peak Hydraulic Capacity: 440 MGD Current Average Flow: ~135 MGD Population Served: ~700,000+ (Regional Service […]
The authoritative technical resource for the Mason Farm facility. FACILITY BASIC INFORMATION Plant Name: Mason Farm Wastewater Treatment Plant (WWTP) Location: 170 Old Mason Farm Road, Chapel Hill, Orange County, North Carolina Operating Authority: Orange Water and Sewer Authority (OWASA) Design Capacity: 14.5 MGD (Million Gallons per Day) Current Average Flow: ~7.5 – 8.5 MGD […]
INTRODUCTION One of the most persistent challenges in municipal and industrial treatment plant design is the “Proprietary vs. Custom” dilemma. Engineers frequently encounter this when selecting equipment for specialized unit processes—such as high-rate clarification, tertiary filtration, or anaerobic digestion auxiliaries. A surprising statistic from lifecycle audits reveals that while proprietary high-rate systems can reduce civil […]
The North Durham Water Reclamation Facility (NDWRF) serves as a critical infrastructure asset for the City of Durham, North Carolina, operating within one of the most environmentally sensitive watersheds in the state. With a permitted design capacity of 20 million gallons per day (MGD), the facility provides wastewater treatment for residential, commercial, and industrial users […]
FACILITY BASIC INFORMATION Plant Name: Neuse River Resource Recovery Facility (formerly Neuse River Wastewater Treatment Plant) Location: 8500 Battle Bridge Road, Raleigh, Wake County, North Carolina Operating Authority: City of Raleigh Public Utilities Department (Raleigh Water) Design Capacity: 75 MGD (Permitted) Current Average Flow: ~52-55 MGD Population Served: Approx. 600,000+ residents Service Area: Raleigh, Garner, […]
Introduction The “Silver Tsunami”—the mass retirement of experienced operators and maintenance technicians—is widely regarded as the single greatest threat to the reliability of municipal water and wastewater infrastructure. While engineers spend thousands of hours designing hydraulic profiles, biological processes, and structural reinforcements, the human element of the control loop is often relegated to a single […]