Wastewater Lagoon – Sludge Reduction
A Midwest dairy operation had recently determined that their 4 million gallon lagoon was building up sludge and would require that it be dredged to remove over 36 inches of solids. It was determined that the majority of the sludge was biodegradable and the anaerobic conditions present were not effective in reducing sludge volume. The operation adds approximately 100,000 gallons per day of high BOD, COD, and TSS manure waste from the barns.
An advanced oxygenation system was set up as a pilot and delivered an emulsion of dissolved oxygen through a series of submerged nozzles. The oxygen carrier fluid with DO reaching 800 mg/l was injected in to the 4 million gallon lagoon. Within 24 hours pieces of the sludge blanket floated to the surface of the wastewater lagoon. These pieces diminished, getting smaller each day until totally consumed by bacteria. After 45 days the sludge in the lagoon was measured and was found to be less than a few inches.
- Supports enhanced biological sludge reduction of organic matter
- Aids in reducing FOG, TSS and BOD for improved discharge water quality
- Dissolved oxygen management assists in reducing ammonia levels
- Eliminates wastewater odors