Tag: Biological Nutrient Removal

Introduction In municipal and industrial water treatment, few parameters are as universally critical—or as frequently misunderstood—as pH. The precise control of hydrogen-ion activity governs the efficacy of coagulation and flocculation, regulates the toxicity of ammonia and heavy metals, prevents corrosive degradation of infrastructure, and dictates the metabolic health of biological nutrient removal (BNR) processes. Understanding […]

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 One of the most persistent challenges consulting engineers and plant operators face in water and wastewater treatment is specifying rotating equipment that can handle extreme variations in process conditions. When a biological nutrient removal (BNR) basin or an equalization (EQ) tank experiences a sudden influx of solids or a severe wet weather event, undersized […]

Introduction: Retrofit vs Replace: Upgrading Aeration in Aging Aeration Basins For municipal and industrial wastewater treatment plants, the activated sludge process remains the workhorse of biological nutrient removal. However, the aeration systems driving this process typically consume 50% to 60% of a facility’s total energy budget. When evaluating Retrofit vs Replace: Upgrading Aeration in Aging […]

Anoxic Zones in Wastewater Treatment: Nitrogen Removal Explained Article Overview Article Type: Informational Primary Goal: Explain how anoxic zone treatment removes nitrogen in municipal and industrial wastewater, covering microbial mechanisms, common process configurations, design and operational parameters, monitoring and control strategies, retrofit options, technology vendors, and real world examples so engineers and operators can design, […]

FACILITY BASIC INFORMATION Plant Name: Iowa City Wastewater Treatment Plant (South Napoleon Facility) Location: 4366 South Napoleon Street, Iowa City, IA 52240 Operating Authority: City of Iowa City – Public Works Department (Wastewater Division) Design Capacity: 24.2 MGD (Average Wet Weather), 43.3 MGD (Peak) Current Average Flow: ~9.5 – 11.0 MGD Population Served: ~85,000 residents […]

FACILITY BASIC INFORMATION Plant Name: Henrico County Water Reclamation Facility (WRF) Location: 9101 WRF Road, Henrico, VA 23231 Operating Authority: Henrico County Department of Public Utilities (DPU) Design Capacity: 75 MGD (Million Gallons per Day) Current Average Flow: ~45-50 MGD Population Served: ~340,000 residents Service Area: Henrico County, portions of Goochland County, Hanover County, and […]

Location: Brooklyn, New YorkOperating Authority: NYC Department of Environmental Protection (NYC DEP)Design Capacity: 85 MGD (Dry Weather)Service Area: East New York, Canarsie, BrownsvilleReceiving Water: Jamaica Bay 1. Introduction The 26th Ward Wastewater Resource Recovery Facility (WRRF) is a critical component of New York City’s wastewater infrastructure, serving a drainage area of nearly 6,000 acres in […]

The authoritative technical resource for the Norman, Oklahoma wastewater infrastructure. FACILITY BASIC INFORMATION Plant Name: Norman Water Reclamation Facility (WRF) Location: Norman, Cleveland County, Oklahoma Operating Authority: Norman Utilities Authority (NUA) Design Capacity: 17.0 MGD (Average Daily Flow) Peak Hydraulic Capacity: 42.5 MGD Current Average Flow: ~11.5 – 13.0 MGD Population Served: ~128,000 residents Service […]

The authoritative technical resource for Kansas’s largest wastewater reclamation facility. FACILITY BASIC INFORMATION Plant Name: City of Wichita Water Pollution Control Plant (Plants 1 & 2) Location: 2305 E 57th St S, Wichita, Sedgwick County, Kansas Operating Authority: City of Wichita Department of Public Works & Utilities Design Capacity: 54 MGD (Average Daily Flow) / […]