Industry publications and journals focus on newer technologies such as MBR, Granular Activated Sludge, and other advanced systems. However, much of our wastewater is still treated in lagoon systems and these systems still have an important part in treating wastewater. What most people don't realize is that lagoons can also be upgraded to meet higher loadings and more stringent effluent permits.
Some examples of lagoon upgrades include:
Some examples of lagoon upgrades include:
- Adding advanced aeration & mixing which reduces short circuiting, anoxic zones, and maximizes biological activity. I am especially interested in new microbubble/nanobubble technologies that improve oxygen transfer with less utility costs.
- Opportunity to enhance performance by adding MBBR into lagoons. The MBBR media develops biofilm that remains suspended in the lagoon and treating pollutants. If you see this as lowering the F/M or increasing MCRT for microbes in the system, you are correct.
- Installation of smaller advanced treatment modules to remove ammonia or phosphorus while using the lagoon for primary BOD/COD reduction.
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