UV254 is commonly accepted as an excellent water quality parameter for coagulation optimization. With a bias toward aromatic organics, UV254 identifies the most problematic organics that contribute to coagulation demand and formation. Fluctuating independently of raw water turbidity, real-time UV254 analysis allows for adjustments to be made in response to current water quality conditions, which will often result in greater organics removal, fewer operation challenges, and clean, safe drinking water. Read more.
From The Editor
The 'Cap And Trade' Approach To Nutrient Removal
Forget “low-tech” — nutrient trading provides a no-tech solution for municipalities to gain compliance with effluent discharge requirements for nitrogen and phosphorus. The Mount Joy Borough Authority, profiled in this case study, was an early adopter and a model for a program that is gaining in popularity.
Oil-Filled vs. Air-Filled Premium Efficient Motors By Pentair, Ltd
If one debate over a specific design feature stands out among 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 manufacturers, this topic has come to the forefront once again.
Zero Liquid Discharge For A 660-MW Gas Power Plant By Aquatech International Corporation
To preserve local water, the Colusa Generating Station captures steam generated during operation, condenses it back into water, and recycles through the plant to produce additional power. Further, water is recycled through a zero liquid discharge (ZLD) system that cleans potential wastewater for reuse throughout the plant. Aquatech was awarded a contract from Gemma Power Systems for this equipment.
Protective Coatings For Underground Utility Concrete Structures By John E. Davis, Sauereisen, Inc.
As our cities and municipalities grow older, the utility and wastewater infrastructures and corrosion preventive programs for underground asset protection are aging with them. Municipalities and utility companies are struggling to handle rehabilitation measures and effective corrosion prevention programs to deal with prolonging the life of their buried assets.
New Technology Enhances Data Monitoring, Reduces Community Energy Bill By Schneider Electric, Telemetry & Remote SCADA Solutions
Northwest of Hartford, CT, are the towns of Simsbury, Avon and Granby. These towns share a history that began before the Revolutionary War, but in the 1970s, they became linked in another way: through the Simsbury Water Pollution Control Facility. This 3.8-MGD-rated facility processes about 2.2 MGD and receives 70 percent of its water from Simsbury, 25 percent from Avon, and 5 percent from Granby.
Up to a predetermined upstream water level (UWL), the valve operates as a simple orifice. When UWL exceeds certain values, an air-filled vortex forms at the center of the outlet, reducing the water passage area without physically reducing the outlet size.
The Leopold Clari-DAF BWT system is a proven and highly effective method of treating spent filter backwash water for achieving the safe reuse recovery of as much as 99.7 percent of the filter backwash water volume, or returning it to the environment — while lowering your total cost of operation.
These units use a disposable filter media (filter cloth) which enhances dewatering efficiency. The box can be cleaned without removing any components or filter panels, due to the space between the support screens and the walls and floor.