Treatment

Collector chain resists corrosion Problem A microbiological attack on the 403 stainless steel collector chains at the Deer Island Sewage Treatment Plant in Winthrop,...

State regulatory agencies are ratcheting down nutrient limits for wastewater treatment plants, notably limits on phosphorus. Reaching extremely low phosphorus limits is...

Biofiltration system The Monafil biofiltration system from Anua uses peat media as a capture and support medium that offers high removal efficiencies for...

For tanks at wastewater treatment plants that contain solids slurries, either for anaerobic digestion or sludge storage, mixing is a key factor...

Close cooperation between the municipality and plant management makes public-private partnerships successful. Few places prove that axiom better than Leoni Township, a...

In 2007, snowmelt and a wet winter sent unusually high levels of nitrogen and phosphorous into Standley Lake, a 13-billion-gallon reservoir in...

UV disinfectionSpektron UV disinfection systems from WEDECO – a xylem brand, are designed to meet all common disinfection requirements including 3-log Cryptosporidium...

Aurora Water interim director Dan Mikesell explains what motivates employees at the award-winning Charles A. Wemlinger and Thomas J. Griswold water treatment...

When demand on its eight groundwater wells threatened to exceed capacity, the City of Wilsonville, Ore., faced a choice: Add more wells...

Powdersville Water District superintendent Chris Rasco easily sums up the philosophy that has won excellence awards for the district and its employees. “We’re...

From the outside, the new water treatment plant in Madbury, N.H., may look merely average. In reality, it includes many forward-thinking, energy-saving...

Pumps lower operating expenses Problem Three 300 hp long-shaft pumps at the Baltic Avenue Pump Station in Atlantic City, N.J., were sized to handle...

Rapid growth, tighter regulations and aging infrastructure were challenging the wastewater systems in Clackamas County, Ore. In response, two wastewater districts teamed...

Located on the tip of Massachusetts’ Cape Cod, Provincetown was the Pilgrims’first landing place. It is also the country’s oldest continuous arts...

Walk around the new Rock Falls (Ill.) Water Reclamation Facility and you can see and feel that it’s different. Skylights and windows brighten...

None of the wastewater treated at the Ocotillo Water Reclamation Facility in Chandler, Ariz., is sent to a receiving river or lake....

Early one morning, the Lab Detective received a call from a local operator, who described an extended aeration activated sludge package-type wastewater...