How to Control Activated Sludge with Online Sensors: Part 3 of...
Figure 3: On-Off Control Dissolved Oxygen Response (source: Meck, D., R. Odum, N. Wobbrock, Cornell University)
In the final piece of this series, we detail...
St. Bernard Parish Combats Brain-eating Amoeba with Fifty Automatic Flushing Units
By Mark Magda, Mueller Water Products
St. Bernard Parish is situated southeast of New Orleans in the state of Louisiana. In 2005, hurricane Katrina caused...
All-Terrain Sewer Stimulates Economy of Arkansas’s Newest City
In part 1 of this series, we introduced the E/One Sentry line of alarm panels, which is custom designed for use with E/One grinder...
On the Strength of Design
In 1978, an innovation occurred in centrifuge technology that changed the market. The dominant centrifuge technologies of the time, the nozzle disk centrifuge and...
Grinder Pumps On The Cutting Edge
From bicycle wheels to automobiles to typewriters and electronics, the sprawling Remington Rand complex in Middletown has held an important place in the state’s...
Triple Win: Part 1 of 2
Wastewater treatment plants are a relatively untapped opportunity in the world of energy efficiency. Although these energy costs represent the largest controllable expense for...
7 Tips to Achieve Better, Faster Sewer Cleaning
By Del Williams
Contractors cleaning municipal sewer, storm, and sanitary lines face a host of challenges on the job. This can range from having to...
Ending the scourge of “blown toilets”
For the operators cleaning municipal sewer, storm and sanitary lines, dreaded “blown toilets” can quickly become a community clean-up and public relations nightmare.
“A ‘blown...
Seattle Takes FOG Program Online
By Chris Weinandt, Aquatic Informatics
With more than 5,000 restaurants and food service establishments (FSEs) in Seattle, the city’s fats, oils, and grease (FOG) program...
Automatic Scraper Strainers Protect Critical Membrane Systems
For industrial process facilities, membrane filtration is a valuable, commonly used means of filtering water and wastewater. The challenge is that membrane systems are...









