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...
A Clear Advantage: Smart Materials for the Construction of Water Filters
Clean water for everyone. Two innovative companies from Saxony-Anhalt have dedicated themselves to this aim: Carbonit Filtertechnik GmbH from the Dambeck district of Salzwedel...
When cleanup is critical
A new aeration system has rescued a paper mill in El Salvador that was on the brink of millions of dollars’ worth of fines...
Flood Defense Pumps Need High-quality Bearings
By Emma Gerard, Thordon Bearings Inc.
Pumps for flood defense must handle high-capacity volumes and also be reliable in extreme conditions. Bedford Pumps Ltd., one...
STEP: Another Alternative to Alternative Sewers
When there are more options than to “hook-up” to a municipal plant and pay exorbitant connection fees, a community developer looks into alternative methods...
Odor and Corrosion Control in Wastewater Collection Systems: Part 3 of...
Ozone can be generated by exciting a flow of oxygen with sufficient electrical or optical energy. This will cause a certain amount of oxygen...
Energy-Efficient Aeration for the New Century: Part 2 of 2
Aeration accounts for a 50 to 70 percent of a treatment plant’s power consumption, and in part 1 of this series, we examined the...
10 expert tips to ensure safe sewer cleaning
Municipalities must safely clean and maintain many miles of sewer line annually to eliminate blockages and prevent sanitary sewer overflows, which are regulated by...
Solving the Phosphorus Issue
By Rob Martindale, Watson-Marlow Fluid Technology Group
Chemical Support Systems Ltd. (CSS) has been established for thirty years as a Cheshire, United Kingdom-based electrical and...
In Times of Drought: Part 1 of 3
A prolonged and serious drought in the American West has elevated concerns about the state of our nation’s water use and supply. The United...









