Joe Creaghe sits at the SCADA workstation, at the Loveland Water Reclamation Facility, preparing to tell the system what tanks to create bubbles in, when to
create them, and for how long to release the air.
ROCKY MOUNTAIN WATER SEPTEMBER 2020 | 31
“The problem with mixers is you have hair, mop heads,
and other debris that collect on the mixer shaft. To clean
the mixers, the basin must be emptied, mixers have to be
removed from the process tanks with a crane, rags have to
be removed, the seals must be changed, the oil changed; it’s
a mess,” Creaghe said.
“There’s none of that with the large bubble compressed air
system. It has two, 30-horsepower compressors. They need
an oil change and a new air filter once a year. Take one offline,
change the oil and filter, and restart it. Done.
“It’s that easy. No process tanks have to be emptied to do the
job, and the submerged pipes and nozzles that are part of the
system don’t need to be touched either,” he said. Only one
compressor runs at a time, so the other one is always available
as a back-up.
The EnviroMix large bubble compressed air mixing system
works like this: The operator tells it through SCADA which
zones in which tanks to mix and how often. The compressor
runs, sends air to a storage and distribution tank, and the
SCADA system tells the large bubble system when, where,