Tag: physical
Introduction In municipal and industrial water treatment, the reliability of process analytics—pH, conductivity, dissolved oxygen, and turbidity—often hinges not on the sensor electronics, but on the mechanical interface with the process stream. A surprising 25% of premature sensor failures in wastewater applications are attributed to improper mounting, poor flow dynamics at the insertion point, or […]
FACILITY BASIC INFORMATION Plant Name: AlexRenew Water Resource Recovery Facility (WRRF) Location: Alexandria, Fairfax County, Virginia Operating Authority: Alexandria Renew Enterprises (AlexRenew) Design Capacity: 54 MGD (Average Daily Flow) Current Average Flow: ~35-40 MGD Population Served: ~320,000 residents Service Area: City of Alexandria and portion of Fairfax County Receiving Water Body: Hunting Creek (tributary to […]
FACILITY BASIC INFORMATION Plant Name: Boat Harbor Treatment PlantLocation: Newport News, VirginiaOperating Authority: Hampton Roads Sanitation District (HRSD)Design Capacity: 25.0 MGDCurrent Average Flow: ~16.0 MGDPopulation Served: Approx. 135,000 (part of regional system)Service Area: City of Newport News and City of HamptonReceiving Water Body: James River (Lower)NPDES Permit Number: VA0081256Year Commissioned: 1948 (Major expansion in 1994) […]
The authoritative technical resource for the Hampton Roads Sanitation District’s flagship facility in Norfolk, Virginia. FACILITY BASIC INFORMATION Plant Name: Virginia Initiative Plant (VIP) Location: Norfolk, Virginia (4201 Powhatan Avenue) Operating Authority: Hampton Roads Sanitation District (HRSD) Design Capacity: 40.0 MGD (Hydraulic) Peak Hydraulic Capacity: 80.0 MGD Population Served: Approx. 200,000+ (Norfolk, sections of Virginia […]
FACILITY BASIC INFORMATION Plant Name: Nansemond Treatment Plant (NTP) Location: 6925 Armstead Road, Suffolk, VA 23435 Operating Authority: Hampton Roads Sanitation District (HRSD) Design Capacity: 30 MGD (Million Gallons per Day) Current Average Flow: ~16-18 MGD Population Served: ~150,000+ residents (Suffolk, Isle of Wight, Smithfield) Service Area: City of Suffolk, Isle of Wight County, Town […]
1. Introduction In the context of municipal and industrial water and wastewater treatment, aeration blowers represent the single most critical active component in the biological treatment process. They serve as the “lungs” of the plant, delivering the necessary oxygen to microorganisms within activated sludge basins, membrane bioreactors (MBR), and aerobic digesters. From an energy standpoint, […]
Introduction The anaerobic digester gallery is arguably the most complex and hazardous environment within a Water Resource Recovery Facility (WRRF). Engineers are tasked with balancing two volatile forces: the biological/hydraulic requirement to keep sludge moving and heated, and the thermodynamic requirement to safely contain and manage explosive methane gas. A single specification error in either […]
The authoritative technical resource for the City of Columbia’s flagship treatment facility. FACILITY BASIC INFORMATION Plant Name: Metropolitan Wastewater Treatment Plant (Metro WWTP) Location: 1200 Simmon Tree Lane, Columbia, Richland County, South Carolina Operating Authority: Columbia Water (City of Columbia) Design Capacity: 60 Million Gallons per Day (MGD) Current Average Flow: ~32-38 MGD Population Served: […]
Location: Springfield, Greene County, MissouriOperating Authority: City of Springfield Department of Environmental Services Facility Snapshot Design Capacity: 42.5 MGD Peak Hydraulic Capacity: 100+ MGD Population Served: ~165,000 residents Service Area: South Springfield, Battlefield, and Greene County Receiving Water Body: Wilson’s Creek (James River Basin) NPDES Permit: MO-0023132 Treatment Level: Advanced Secondary with Tertiary Filtration and […]
Introduction The safety and structural integrity of anaerobic digesters rely entirely on the precise management of internal pressures. For decades, the specification of gas safety equipment has largely been a binary choice in the North American market. Engineers evaluating Varec Biogas (Ovivo) vs Shand & Jurs for Digestion applications are navigating a landscape defined by […]