Entries Tagged Sludge

WASTEWATER By: Rick Lallish It is generally accepted that the sludge blanket depth in secondary clarifiers should not exceed 2 feet (0.6 meters)....

Entry 244616Welcome back to TPO magazine's Exam Study Guide Series, which offers a pair of water/wastewater study questions with in-depth explanations of the answers. Last time,...

The patented Foambuster from Vaughan uses a glass-lined ductile iron nozzle combined with a stainless steel splashplate located below the nozzle to...

A second worker in Wichita Falls, Texas, has died from exposure to concentrated hydrogen sulfide at the River Road Wastewater Treatment Plant....

A wildlife rescue has a happy ending, thanks to two county wastewater system employees. The duo recently discovered a disabled snowy owl in...

When Tommy Armstrong stares at the cracking mud of a dewatering bed, he sees more than drying biosolids. He sees crazy lines,...

Researchers with the School of Freshwater Sciences at the University of Wisconsin-Milwaukee have found elevated levels of metformin, a diabetes treatment drug,...

Editor’s Note: We will be highlighting the winners of WEF’s Operator Ingenuity Winners in an ongoing series on our website. The winners...

Editor's Note: Innovation was a big theme at WEFTEC 2014. We'll be featuring a few of the new and better technologies found...

What does a community do when its liquid biosolids handling equipment breaks down to the point of no repair? If you are...

Back in the 1980s while working on a public participation project for a clean-water agency involving land application of what...