OIL & GREASE, ODOR & SLUDGE REDUCTION - RENDERING PLANT

Biological Treatment Summary

The Situation

A rendering facility faced numerous issues with its series of wastewater lagoons.

• Sludge build up had begun to take over the lagoon, decreasing lagoon capacity and putting regulatory limits in jeopardy.
  
• Oil and grease caps had taken over two of the lagoons, limiting their ability to aerate the system.
  
• Local businesses and residents complained about the odor generating from the lagoons.
  
• The company's only known solution was to dredge the lagoons and dispose of the sludge.

The Solution

Bio-Form LLC personnel proposed a bioaugmentation program that consisted of the addition of BZT® Waste Digester throughout the lagoon system. Bio-Form LLC proposed that an initial seed application be performed followed by regular weekly maintenance applications. The treatment program was designed to decrease the overall sludge volume, decrease oils and greases, and keep odors under control.

The Result

No odors, no sludge, no grease caps.

Within days of the initial seed applications, there was a dramatic decrease in the odor generating from the lagoons and the oil and grease cap had been taken under control. Eventually, the odors from the lagoons were eliminated.

Sludge depth readings were taken at 60 days and 120 days. The initial readings (60 days) showed an average sludge reduction of 45% across all the lagoons. The sludge depth readings taken at 120 days showed 3-6" [7.62-15.24cm] of sludge left in lagoons 2 and 3, with sludge reductions of over 60% in lagoons 4 and 5. Please note that the treatment program was not as aggressive for lagoons 4 and 5 as it was for lagoons 2 and 3.

The company continues to rely on BZT® Waste Digester for its performance and benefits. The corporate headquarters of the subject company is now introducing BZT® Waste Digester and Bio-Form LLC to many of its other facilities nationwide.