The Water Pollution Control Authority (WPCA) of the City of Bridgeport, Connecticut, operates two wastewater treatment facilities and maintains the city’s sewer system.

Guide for technologies that power the activated sludge process

Chlorine gas (Cl2) is a highly effective oxidant and a relatively economical option for disinfection. Since Charles F. Wallace and Martin F. Tiernan discovered the first chlorine gas feed system in 1913 the Wallace & Tiernan® brand is a synonym for safe and reliable disinfection of water. Chlorine can be safely transported, easily applied, measured, and controlled. See below for more frequently asked questions regarding Gas Feed disinfection.

Clarifiers are an important component of the wastewater treatment process. However, between corrosion, maintenance, and changes in flow, it can be difficult to keep a clarifier operating at peak performance. In addition, changes in effluent regulations may require upgrades to meet new, more stringent requirements. To learn more about clarifiers and their maintenance, Allen Lepak, Clarification Product Manager with Evoqua Water Technologies provides expert advice on how to identify some common issues with clarifiers, how to maximize performance, and how to decide whether you should upgrade or replace your existing unit.

Evoqua Water Technologies was chosen by Carolina Water Service, Inc. to design, manufacture, and install a new wastewater treatment system in Connestee Falls, N.C., replacing the old plant to improve efficiency and reduce environmental impact

Non-metallic components from the OEM to extend system life

Watch how EnviroMix’s BioCycle-ENR™ activated sludge process optimizes nutrient removal, aeration, and energy savings through automated process control.

Customers from all over the world give their overwhelmingly positive testimonials regarding Flygt's Concertor® intelligent wastewater pumps being used in wastewater treatment plants

England’s Northumbrian Water Ltd (NWL) serves roughly 2.5 million people with water and sewerage services. To better assess its predicted results they conducted a project to measure how much the installation of N-pumps had reduced their costs.

The French Community of Communes Albères Côte Vermeille Illibéris (CCACVI) is promoting a hypervision project to streamline its water cycle, based on the Xylem Vue platform.

In the face of climate change and cost and supply uncertainties, cities and municipalities must operate their plants and processes as efficiently and sustainably as possible. In this context, the town of Kaufbeuren recognized significant potential for energy optimization at its wastewater treatment plant.

Clayton County Water Authority (CCWA) is a good example of a utility that doesn’t let a confined geographical footprint stop it from thinking outside the box. As one of Georgia’s smallest counties in terms of land size area (only 143 square miles), its location near the top of a regional watershed means it has little area to gather precipitation into streams and rivers.

When the affluent, new home development was being established, odor control was top of mind. The wastewater treatment plant was in close proximity to the new development, which includes 900 acres (364 hectares) of preserved open space, including 24 miles (38 kms) of trails, 10 neighborhood parks, a community pool and water park, as well as outdoor sport courts.

Read how Adairsville’s North WWTP reduced aerobic digestion energy use with EnviroMix BioCycle-D by decoupling aeration from mixing and using automated aerobic and anoxic cycles, delivering more than 45% energy savings versus conventional diffused air mixing.

Read how the Eastside Wastewater Treatment Plant in Albertville, AL used the EnviroMix BioCycle-D™ process to simplify operations, reduce maintenance, and improve energy efficiency.

Read how Detroit Lakes, Minnesota met a 0.066 mg/L phosphorus limit by upgrading aerobic digestion with EnviroMix BioCycle-D, delivering 77% energy savings and over $100,000 in annual power cost savings while keeping phosphorus sequestered in the sludge.

See how Orlando’s Water Conserv II WRF improved denitrification by replacing diffused-air mixing with EnviroMix BioMix to lower dissolved oxygen in anoxic basins, reduce long-term O&M costs, and strengthen BNR performance and resiliency after high-flow events.