This southern food processor was plagued by multiple problems in its wastewater treatment plant. The extended aeration, activated sludge system had inadequate oxygen transfer and poor mixing with its existing aeration system. Installing more did not help. High maintenance costs also were a problem.
In 1984, AIRE-O2® aspirator aerators were installed. The plant manager reported, 'The AIRE-O2® aeration system provides us with greater oxygen transfer and mixing. I get much better settling...so good that I stopped using polymers.' He reported that installation was easy and maintenance proved far less costly.
More AIRE-O2® units were installed over the years . 'I’ve cut maintenance by 50%,' the manager reported. The unit’s directional flow feature is an added bonus. 'I can change the mixing pattern to boost treatment when needed.' He added, 'I feel the AIRE-O2® units are some of the best aeration equipment in the market. We’re really pleased with them.'