WASTEWATER PUMPS CASE STUDIES AND WHITE PAPERS
Murfreesboro, Tennessee, is the fastest growing city in Tennessee, and one of the fastest growing cities in the United States with its population more than doubling since 2000.
WWTP Reaches Clog-Free Operation With Self-Cleaning Impellers
As with many plants modified for activated sludge treatment, the existing infrastructure at the Adams Field Wastewater Treatment Plant in Little Rock, AR, allowed rags and other debris to clog the impellers of the submersible pumps. One of the plant’s two 15-horsepower pumps was replaced with an 18-horsepower RAS submersible pump with a self-cleaning impeller, virtually eliminating the clogging problem by simply pumping away any debris that reaches the pump intakes.
Minimizing Energy Use At Pump Stations With Extreme Variable Flows
Every spring, the wastewater municipality in Dalarna, Sweden, experienced melting snow and heavy rainfall that caused a dramatic increase in pump station inflow. To handle this seasonal volume, the station had oversized pumps that consumed more energy than needed during drier months. This case study illustrates how the installation of a variable-speed pump controller decreased energy consumption by almost 50 percent while allowing for variations in flow.
Pre-Engineered Lift Stations Deliver Fix For Aging Pumps At Private Sewer Utility
Undersized original construction and gradual equipment deterioration led to recurring pump station failures and overflows for the Valley Rural Utilities Company’s wastewater collection system in Lawrenceville, Indiana.
A Guide To Wastewater Pump Materials: Selecting The Right Materials To Extend System Life And Raise Performance
Wastewater can be both corrosive and abrasive. To ensure reliable and cost-effective pump operation, it is important to select a wastewater pump made from the most suitable material for your wastewater.
Lift Station Reduces Clogging, Lowers Operating Expenses With Self-Cleaning Pumps
Aging pumps at Jackson Energy Authority’s Rolling Acres Lift Station (Jackson, Tenn.) resulted in frequent clogging and outages that required costly maintenance and repair.
Dry-Pit Submersible Pumps Replace Oversized Long-Shaft Pumps
After anticipated growth of the New Jersey casino industry fell short, Atlantic City Sewerage Company’s Baltic Avenue Pump Station was left with grossly-oversized long-shaft sewage pumps that operated inefficiently and were prone to cavitation.
Wireless Lift Station Monitoring Application Note
Lift stations are remote pumping facilities that move wastewater from lower to higher elevation. Monitoring lift stations is important to collection system operators.
Oil-Filled VS. Air-Filled Premium Efficient Motors
If one debate over a specific design feature stands out amongst all the others in the submersible waste water pump field, it must be, “Which is better, air-filled or oil-filled motors”? With The introduction of premium efficient motors by several manufactures, this topic has come to the forefront once again.
Premium Efficient Shaft Grounding Rings VFD Operation
When a motor is operated on a variable frequency drive, unexpected voltage can be induced on the rotor and shaft.
Fairbanks Nijhuis Protecting New Orleans
Originally constructed from the 1920s to 1949, the Gulf Intracoastal Waterway (GIWW) is one of America’s most remarkable transportation arteries. The New Orleans District U.S. Army Corps of Engineers operates and maintains the GIWW in Louisiana, and maintains its six locks for both navigation and agricultural purposes.
When the discussion turns to requirements for “explosion-proof” pumps, many people rely on word of mouth, past practices or even old wives tales it seems. By Kevin Clemons