The minimum dissolved oxygen in your lagoon should be ________ to inhibit the formation of odors.

Maintaining a minimum dissolved oxygen level of 2.0 mg/l in a lagoon is crucial for preventing the formation of odors. At this level, microbial activity is sufficiently supported, allowing aerobic bacteria to thrive. Aerobic bacteria are essential for the breakdown of organic matter, and their activity helps to stabilize the treatment process. When dissolved oxygen levels drop below this threshold, anaerobic conditions may develop. Anaerobic bacteria, which thrive in low-oxygen environments, are responsible for producing foul-smelling compounds as they break down organic material. By ensuring that dissolved oxygen remains at or above 2.0 mg/l, operators can effectively reduce the potential for odor issues and promote a more efficient and odor-free lagoon treatment system.