Problem: A wastewater treatment plant in the southeast US had a problem maintaining target dissolved oxygen due to an underperforming diffused aeration system. The tank’s fine-bubble diffusers were fed by a single multistage centrifugal blower, likely because of diffuser fouling or a broken supply line deep in the tank. The plant team looked to temporarily augment the tank with a supplemental oxygen source.
Solution: Rental Retrievable Diffused Aeration Grids (coarse bubble) from AERZEN were installed in a few hours, and within days the DO levels improved. After a few months, these were replaced by fine-bubble grids from the company within a few hours. This allowed the spare blower to slow down, leading to a 50% reduction in energy consumption for the project’s duration.
Result: The plant met its permit requirements using a readily available rental solution. 844-400-2379; www.aerzen.com
