High COD/BOD Loading Lagoon

A 40-million-gallon lagoon contained high COD and BOD loading, leading to anoxic conditions and the formation of sulfide. These sulfide odors required treatment to address continuing community complaints. Utilizing strategically placed circulation pumps totaling 1,800 gpm, the AOTech process was applied to rapidly destroy the sulfide in the lagoon. Sulfide concentrations prior to treatment were 20 mg/L, and 0 mg/L following treatment. Following the initial treatment, a smaller dose was implemented to maintain the 0 mg/L sulfide concentration.