When an energy audit recommended variable-frequency drives for blowers, team members at the New Ulm (Minn.) Wastewater Treatment Plant weren’t so sure...
Editorial
A Better Way to Aerate
Entries Tagged Variable-Frequency Drive (VFD)
Editorial
Targeting Efficiency
Three years ago, an energy audit of the Freeport (Maine) Wastewater Treatment Plant found many ways to save energy by upgrading old...
Online Exclusives
Cut Centrifugal Load Energy Costs
Many organizations want to save energy because of increasing costs for electric power. Costs for electricity vary widely across the U.S., with...
Editorial
We Are Environmentalists
Howard Carter wants people to know that wastewater treatment plants are in the business of protecting — not polluting — the...
Editorial
Back From the Grave
You wouldn't know it by looking, but the Paris Utility District in the Village of South Paris, Maine, has a brand...
Editorial
Energy Management and Sustainability
Cogeneration modules
Combined heat and power generators from 2G – CENERGY Power Systems Technologies use biogas to generate electricity and heat in...
Editorial
On a Mission
Utilities superintendent Steven Hardeman says the Norman (Okla.) Water Reclamation Facility runs like a business. In truth, most businesses could learn...
Editorial
Shades of Green
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...
Editorial
Pumps, Drives, Valves & Blowers
Self-priming pump
The Contractor Pump range from AllightPrimax is designed for cost-efficient fluid handling. Fuel usage is minimized through the hydraulic pump-end, impeller...
Editorial
May/June Product News
FLIR i-Series infrared cameraThe i-Series (i3, i5, i7) point-and-shoot infrared cameras from FLIR capture thousands of calibrated temperature measurements for a complete...
Editorial
Repair or Rethink?
When the Moundsville (W.Va.) Wastewater Treatment Plant experienced a blower failure, the staff naturally assumed they should repair the failed unit to...
Editorial
Ready for Anything
When the Newtown (Conn.) Wastewater Treatment Plant had trouble meeting its nitrogen limit, the plant manager, operator and mechanic worked as a...
Editorial
Better With Age
The New Holstein (Wis.) Wastewater Treatment Plant sits humbly at the end of a gravel road on the east edge of town.
From...
Editorial
Pumps, Drives, Valves and Blowers
Hybrid compressor
Delta Hybrid oil-free rotary lobe compressor packages from Aerzen USA Corp. combine rotary lobe blowers with screw compressor technologies for flows...
