Tag: treatment
FACILITY BASIC INFORMATION Plant Name: Back River Wastewater Treatment Plant (BRWWTP) Location: 8201 Eastern Avenue, Baltimore, MD 21224 Operating Authority: Baltimore City Department of Public Works (DPW) / Bureau of Water and Wastewater Design Capacity: 180 MGD (Average Daily Flow) Peak Hydraulic Capacity: >400 MGD (Wet Weather) Population Served: ~1.6 million residents Service Area: Baltimore […]
FACILITY BASIC INFORMATION Plant Name: The Mattabassett District Water Pollution Control FacilityLocation: 245 Main Street, Cromwell, Middlesex County, ConnecticutOperating Authority: The Mattabassett DistrictDesign Capacity (Average): 35 MGDPeak Flow Capacity: 110 MGDPopulation Served: ~170,000 residents (plus substantial industrial base)Service Area: New Britain, Middletown, Berlin, Cromwell (Constituent Communities)Receiving Water Body: Connecticut RiverNPDES Permit Number: CT0100668Year Commissioned: 1968 […]
FACILITY BASIC INFORMATION Plant Name: Bridgeport West Side Wastewater Treatment PlantLocation: 205 Bostwick Avenue, Bridgeport, Fairfield County, ConnecticutOperating Authority: Bridgeport Water Pollution Control Authority (WPCA) / Contract Operator: InframarkDesign Capacity: 30.0 MGD (Average Daily Flow)Peak Wet Weather Capacity: 90.0 MGDPopulation Served: Approx. 100,000+ (West Bridgeport, Trumbull, Fairfield)Service Area: West Side of Bridgeport and portions of […]
FACILITY BASIC INFORMATION Plant Name: Hartford Water Pollution Control Facility (HWPCF) Location: 240 Brainard Road, Hartford, Hartford County, Connecticut Operating Authority: The Metropolitan District Commission (MDC) Design Capacity: 82 MGD (Average Daily Flow) Peak Hydraulic Capacity: 200+ MGD (Wet Weather) Population Served: ~400,000 residents Service Area: Hartford, West Hartford, East Hartford, Newington, Wethersfield, Rocky Hill, […]
Introduction In municipal and industrial water treatment infrastructure, the reliability of auxiliary equipment often dictates the resilience of the entire process. While massive raw sewage lift pumps garner the majority of capital planning attention, the failure of miscellaneous pumps—seal water systems, polymer feed pumps, sampling units, and dry-pit sump pumps—frequently triggers permit violations or costly […]
Introduction In the hierarchy of wastewater treatment equipment, process pumps often receive the bulk of engineering attention. However, the humble dewatering pump acts as the critical fail-safe for plant operations. Engineers frequently encounter a scenario where a tank needs emergency draining, or a gallery floods during a storm event, only to find the portable or […]
Introduction In municipal water and industrial wastewater treatment facilities, pressure instrumentation is the sensory nervous system of the process. Yet, a surprising number of process upsets, pump protection failures, and chemical dosing errors can be traced back to a single, often overlooked component: the diaphragm seal (or chemical seal). Engineers frequently treat these isolation devices […]
Introduction In municipal and industrial wastewater treatment, the precision of chemical dosing is directly linked to process compliance, yet the longevity of the dosing equipment is often compromised by material mismatching. A common point of failure in chemical feed systems is not the mechanical drive mechanism, but the degradation of wetted parts due to unforeseen […]
Introduction to PC Pump Intake Hydraulics One of the most persistent and expensive failure modes in municipal wastewater treatment plants involves the premature destruction of progressive cavity (PC) pump stators. While often blamed on “bad rubber” or manufacturing defects, a significant percentage of these failures are actually hydraulic issues rooted in the civil and mechanical […]
Introduction Municipal engineers frequently underestimate the complexity of chemical injection at remote lift stations. While the primary sewage pumps receive the bulk of the design attention, the auxiliary chemical feed systems are often the critical defense against the wastewater industry’s most pervasive enemies: hydrogen sulfide ($H_2S$) corrosion, noxious odors, and Fat, Oil, and Grease (FOG) […]