Editorial Articles

The AD1000 high-performance variable-frequency drive and the AD700E general purpose drive from Nidec Motor Corporation can reduce energy consumption in a range...

The liquid ammonium sulfate feed system from Integrity Municipal Systems is designed to be a safe, economic alternative to aqueous ammonia in...

Phosphorus is becoming a riddle for clean-water plant operators. Not so long ago, the nearly sole focus was on getting it out...

Keep it fast for haulers, and keep it maintenance-free for operators. That’s what Lakeside Equipment set out to do with its Raptor...

Clean-water plants are constantly challenged to improve efficiency and meet increasingly strict permit limits. When new regulations or community growth demand plant...

For many clean-water utilities, the possibility of stricter nutrient removal requirements looms on the horizon. New total maximum daily loadings for water...

Each year from spring through autumn, migrating humpback and California gray whales are a major attraction in coastline waters near San Francisco...

Changes come slowly in the wastewater treatment industry. That’s why a recent process improvement at a Florida plant is gaining attention.An air-infusion...

Turbidity is regularly measured at water treatment plants on both compliance and process control samples using hand-held or benchtop turbidimeters. It is...

It takes a long time to develop new technologies. The hydrogen fuel cell, now growing in popularity at wastewater treatment plants, was...

Removing food from solid waste streams to preserve landfill space is nothing new, but one utility in California has plans to turn...

In the late 1990s and early 2000s, the Village of Ohio City’s 150,000 gpd trickling filter plant routinely bypassed 270,000 gpd of...

The Robert A. Harris Water Filtration Plant keeps adding to its history of low finished-water turbidity. The latest milestone is the 2015...

Drought. You wouldn’t call it a blessing in disguise, but it may have a positive side.That’s becoming evident at Wichita Falls, Texas,...

More lake sturgeon swim in the waters touching Michigan’s St. Clair County than in any other spot in the Great Lakes. Now...