Stadtwerke Trier (SWT) operates the main wastewater treatment plant (WWTP) in Trier, with a capacity of 170,000 population equivalents. This facility was one of the largest energy consumers in the utility for many years, with hundreds of thousands of kilowatt hours of valuable energy being drawn from the public grid as a result of poor control.

When its wastewater treatment plant’s brush aerators reached their end of service life, The City of Tomball replaced them with Xylem's Envirex® Disc Aerators, maintaining compliance and improving reliability.

The Grass Valley Wastewater Treatment Plant provides service for a population of approximately 12,000 people. Situated in California’s Gold Country, the area has some unique challenges that include mine drainage and heavy flows during the winter storm season in the scenic Sierra Nevada foothills. On average, the City discharges 2.1 million gallons per day of treated wastewater effluent to Wolf Creek, a tributary of the Bear River.

Since the wastewater treatment facility is located near a retirement community, the design of the plant had to be taken into consideration as well as the small land area, noise level of the equipment and potential odors.

The City of Dundee is a growing community with a strong economy boasting three wineries within the city limits and several others in the surrounding Willamette River Valley. The City's existing WWTP was nearing capacity, and the limited discharge to the Willamette River would not adequately support Dundee's planned growth.

Located in Kansas City, Missouri, the Blue River Wastewater Treatment Plant (WWTP) was in need of a solution to address high inlet contaminant loadings at multiple locations throughout the plant as well as meet high odor removal efficiency requirements using only biological treatment. The Blue River WWTP is the largest wastewater treatment plant in the metropolitan region treating an average of 75 million gallons per day (MGD).

The SCADA system provides a way for the plant to monitor their efficiency.

Xylem delivered a turnkey pumping solution in Kristvallabrunn, including a new pumping station and booster station for reliable, energy-efficient wastewater transfer.

Urban development in Bromstensstaden required new, reliable wastewater pumping stations to meet increased demands on the water and wastewater system.

Located in Evesham, New Jersey the Elmwood Wastewater Treatment Plant was prompted to upgrade its filtration process to address three aging traveling bridge sand filters that had reached the end of their useful life.

Xylem has been selected by United Utilities and its design and construction partner, Advance Plus, to supply its BioMag® ballasted clarification system to reduce phosphorus at both the Horwich and Burnley Sewage Treatment Works in Lancashire.

The South Surrey Interceptor is an extensive piping system that collects and conveys approximately 500 million litres of wastewater daily from municipalities in the eastern area of Metro Vancouver to the Annacis Island Wastewater Treatment Plant located in the City of Delta, British Columbia.

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

Discover Xylem at SIWW 2026 and explore integrated technologies that help utilities and industry improve reliability, water quality, and operational resilience.

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.

UV Systems from Xylem are a proven solution for disinfection and removal of organic and inorganic contaminants

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.

A community lift station in Southwest Florida received complaints from the local residents due to a prominent odor coming from the unventilated wet-well. The municipality reached out to Xylem for a solution.

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