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High-Performing Membranes Provide Absolute Barrier to Cryptosporidium and Giardia Lamblia
Aria FLEX™ Custom Systems Case Study | Murfreesboro, TN
A pioneering water treatment plant in Tennessee chose the proven, low-pressure hollow-fiber membrane system from Aria Filtra to meet treatment and expansion needs.
The challenge
In 2008, Murfreesboro Water Resources Department in Tennessee sought to expand and update aging equipment at its Stones River Water Treatment Plant (SRWTP). Located just outside of Nashville, the city’s population was rapidly growing, and the water treatment plant required additional capacity to meet demand. The upgrade also gave Murfreesboro the opportunity to proactively prepare for anticipated new EPA regulations relating to water treatment while preventing cryptosporidium and giardia lamblia from reaching the public water supply. Natural conditions, turbidity, and water hardness in the Murfreesboro area posed additional treatment challenges for the SRWTP expansion project.
The solution
When the plant update and expansion project were initially conceived, membranes were coming to the forefront as the most reliable, highest quality filtration technology. Compared to SRWTP's previous sand filtration system, membrane filtration allows the plant to control cryptosporidium and giardia lamblia more effectively at a lower cost and with an absolute barrier to the protozoans. After evaluating numerous membrane filtration systems, the Aria FLEX low-pressure, hollow-fiber system from Aria Filtra® was selected because it could meet high standards for water quality and operator safety. The upgrade also gave Murfreesboro the opportunity to proactively prepare for anticipated new EPA regulations for water treatment.
The results
When the upgraded SRWTP opened its doors in 2008, it was operating at the highest flux rate in the country. Following nearly a decade of operation, the Aria FLEX system is still running strong. With clean-in-place (CIP) conducted monthly, the membranes are able to recover and perform at the same standards as when they were placed in service in 2008.
“ The quality of our membranes and the Aria FLEX system overall has been extremely impressive. In nearly 10 years of operation, we have had very little instances of breakage or repair compared to our peers that are using different membrane providers. Our membranes have just as much life in them today as they did on day one.”
- Alan Cranford, water treatment plant manager, Murfreesboro Water Resources Department
Solution overview
- Provides an absolute barrier for cryptosporidium and giardia lamblia
- Handles incoming water variations (turbidity spikes)
- Meets drinking water requirements
- Is designed for 20 mgd total capacity
- Features reliable, hollow-fiber membranes that experience less fiber breakage than competitors
Learn About the Product - Aria FLEX Customized Treatment Solution
Custom water treatment featuring low-pressure hollow-fiber membrane technology provides high-quality drinking water.
Custom Water Solutions: Aria FLEX – MF / UF Systems
Flexible, customizable solutions
Custom Water Systems offer flexible designs for a wide range of capacities and applications. Our modular membrane-based systems are completely customizable, making them the perfect solution for new plants, replacements or facility upgrades.
Questions? Looking for a solution?
Contact Aria Filtra today for more information, and one of our water experts will get in touch shortly. We look forward to hearing from you!
Resources
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