BioPasteur

The BioPasteur process as an enhancement to anaerobic digestion provides Class A pathogen reduction. The BioPasteur process heats the biosolids to 70°C for a minimum of 30 minutes to provide pathogen reduction. Following pasteurization, the anaerobic digestion system provides volatile solids reduction at either thermophillic or mesophillic operating temperatures.

In order to create a simple, flexible and low maintenance means of heat transfer, the BioPasteur utilizes Sludge Water Sludge (SWS) heat exchangers. Automatic and continuous discharge of biosolids to the anaerobic digesters is provided by way of three sequentially operated batch tanks. More importantly, with batch operation there is no risk of pathogen short-circuiting in the Kruger BioPasteur process. Additionally, the process automatically adjusts to variable incoming conditions such as flow rate or sludge temperature changes.

BENEFITS

• Class A Pathogen Reduction
• Energy Efficient
• No Risk of Pathogen Short Circuiting
• Digester Temperature Maintained via Control System
• Digesters Fed Continuously, Increasing Process Stability
• Flexible
• Stainless Steel Construction
• Simple Operation
• Simple Maintenance

For additional information on the BioPasteur process, please contact Travis Smith at (919) 677-8310.