Online Exclusives

Given the following data for an activated sludge process, calculate the F/M (food to mass) ratio: The aeration tank has a volume of...

The Water Research Foundation recently awarded the 2025 Research Innovation Award to Brent Alspach and the 2025 Subscriber Impact Awards to Toronto...

Inovair produces high-efficiency blowers that meet BABA requirementsLenaxa, Kansas-based Inovair has been recognized by EPA as the first manufacturer of high-efficiency blowers...

In the utility industry, there are many hazards associated with daily tasks. One of the key components of a safe workplace is...

Duperon Corporation — a leading provider of screening and solids handling solutions — recently welcomed more than 200 students from Saginaw Career Complex...

Wastewater treatment facilities have long sought the elusive formula for efficient sludge dewatering, aiming to find the most cost-effective methods and equipment,...

In a compelling blend of public outreach and education, the San Antonio Water System has released a new children’s book titled Pipa’s...

Blue-White’s space-saving CHEM-FEED wall-mount skid systems provide a fully equipped and fully assembled alternative to bulky floor models. These lightweight, chemical-resistant, and...

HUBER is pleased to announce that, after a competitive bidding process, the La Crosse wastewater treatment facility selected HUBER for several elements...

A research team at Iowa State University is investigating whether engineered wetlands designed to improve water quality can also support biodiversity in...

When you look at new or replacement wastewater equipment, one of your first considerations may be the initial cost of equipment. But...

Want to know more about phosphorus in wastewater? In this interactive PDF handbook, you'll learn about:The science of phosphorus Phosphorus limits in municipal wastewater Removal...

Design details and top-quality construction materials make F-460 Series flowmeters well suited to applications where no metals can enter the fluid path...

Midges and filter flies are a threat to the performance of wastewater treatment facilities. They alter water quality, clog pipes, and in...

Vermont legislators are currently debating bills that propose to ban the land application and sale of "septage, sludge and biosolids," as well...

Control valves are found throughout municipal water distribution systems and are integral to maintaining consistent water pressure and supply. The importance and...

The City of Santa Barbara’s El Estero Wastewater Treatment Plant has been through a technology evolution since it was built in the...

With its selection of online ISE (ion-selective electrode) sensors, YSI has become an industry leader in continuous ammonium and nitrate measurement in...

F:M ratio calculations involve the proportion of food (pounds of BOD) against the proportion of mass (or microorganism) in the complete aeration...