Current Articles | RSS Feed RSS Feed

Mixer Case Study: Pinellas, FL

Case Study PinellasFL911Pinellas County, Florida is typical of many major metropolitan water systems, with over 700,000 customers, 2,000 miles of piping and several large water storage facilities. Pinellas County Department of Environment and Infrastructure saw a decline in water usage over the past decade, which has increased water age and rates of nitrification in parts of their chloraminated system.

download

How to Select and Specify Mixers for Potable Water Storage Tanks [Whitepaper]

WhitePaper Select MixersMixing in potable water storage tanks is increasingly recognized as an important factor for improving water quality and protecting tank assets. But how much mixing is “enough” for each application? This whitepaper outlines important perfromance criteria to consider when evaluating mixing technologies. 

download
Tags: 

Aeration Case Study: Rockville, MD

Case Study RockvilleMDThe City of Rockville, Maryland has taken a proactive approach to meet water quality regulatory compliance for their drinking water system. However, an unexpected notice of violation for exceeding the Maximum Contaminant Level (MCL) of Total Trihalomethanes (TTHMs) in 2008 caused the City to critically examine water quality in their water distribution system. 

download

Mixer Case Study: Atwater, MN

Case Study AtwaterMNThe Town of Atwater, Minnesota has seen its share of cold winter weather, but the January 2014 "polar vortex" storm set new records. Atwater has had a history of problems with ice formation inside their single 100,000 gallon elevated storage tank and researched various options for reducing the risk of ice. .

download

Mixer Case Study: Central Highlands, AUS

Case Study Central Highlands AUSCentral Highlands Water, west of Melbourne, had difficulties maintaining disinfectant residual in their system. With years of drought, and substantial decreases in water use as a result of changed customer behavior, maintaining residual at the end of the system became difficult.

download

Beat the Chill

Beat Chill 17Rural water systems across the United States face a range of challenges in maintaining water quality in their distribution systems. Unlike large municipal systems, rural water systems often have a distribution network that is spread out over many miles. This can result in high water age and low disinfectant residual in parts of their system.

download
Tags: 

Cold Weather Cure

Article Cold Weather CureIn the water distribution system, cold weather can create a risk that is hidden from view: ice accumulation inside water storage tanks. Often, when operators realize they have a problem with ice in their tanks, it is too late—the tank’s interior is damaged or the wall is punctured.

download

Mixer Case Study: Walkerton, ON

Case Study Walkerton Ontario CANThe Municipality of Brockton knew that their 70-foot-tall standpipe in Walkerton, Ontario was thermally stratified in the warm summer months. Not only was there a persistent band of condensation on the outside of the tank, and taste and odor complaints, the team was hit with a blast of hot air whenever they opened the tank hatch. Brockton looked into active mixing to help eliminate the thermal stratification in the tank.

download

Posttreatment Aeration to Reduce THMs

PosttreatmentPosttreatment aeration inside water storage tanks can be used as a cost-effective option to strip trihalomethanes from finished water. This paper explores how different design variables affect THM removal rates for diffused aeration and spray aeration systems.

download

Mixer Case Study: Laramie, WY

Case Study LaramieWYSouth of Laramie Water and Sewer District in Wyoming was concerned about preventing ice damage in a 300,000-gal pedisphere tank. The utility decided to install a PAX Water Mixer (PWM100) - designed specifically for small tanks - to eliminate ice.

download
All Posts