CASE STUDIES
Evergreen Landia mixers all part of Gardner’s high standards
Some might consider the relentless maintenance regime at a treatment plant in Kansas to be almost too pro-active. But the longevity and reliability of this site’s equipment speaks volumes for the way this wastewater facility is run; not to mention the multiple awards it has won.
At Gardner, just south west of Kansas City, Site Superintendent Scott Millholland is a firm believer in keeping the Kill Creek Water Resource Plant clean, fully serviced and at optimum efficiency – at all times. Protecting the environment, waterways and his team are paramount.
Scott recently completed 25 years’ service (the past 12 as Site Superintendent), seeing in the Kill Creek facility when it was built in 2002 by Kruger as a Bio-Denitro- phased oxidation ditch technology plant.
Also there since the plant first opened are two mixers made by Landia, which help keep everything in suspension in the ‘racetrack’ nitrification/denitrification set- up.
“These Landia mixers continue to keep everything moving and do a very good job for us,” said Scott. “We pull them up every Spring and Fall to pull off any rags and make sure there’s nothing on the magnetic plug rings – and after checking them over, put them right back into service. They’re an integral part of what we do here.”
In the corrosive world of wastewater treatment that Scott knows very well, his view on all that pro-active maintenance is partly summed up with the statement that ‘oil is cheap!
“We didn’t have to carry out any type of
rebuild on the first Landia mixer until it had completed 14 years of service,” he said.
“We look after them properly, but they’re a strong, solid design and very easy to maintain. Equipment should always be maintained properly, but clearly, the mixers made by Landia are truly built to last. After our rotors have been on for an hour and a half, we run the mixers for 45 minutes. At just 13 amps, they are super- low on energy usage, especially when compared to blowers. We’ve just replaced 130-amp (125HP) blowers with new units that are just 50 amps, so it has been a very quick payback.”
Keeping 21-year-old mixers in tip-top condition is just one of the many reasons that Gardner has rightly been recognised as an outstanding wastewater treatment facility. Each of the 23 lift stations in and around Gardner are also checked every day to ensure that all of the wastewater is getting through properly. Serving a
30 | February 2024 |
www.draintraderltd.com
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