PONDUS: Thermo-Chemical Hydrolysis Process (TCHP)

PONDUS keeps the hydrolysis process simple and affordable.

Drastically reducing the overall carbon footprint by minimizing solid waste production, PONDUS enables useful repurposing of biosolids (as fertilizer and carbon source) and methane gas outputs (as renewable energy).

Here’s how it works:

Using caustic soda and hot water to destroy cell membranes of Waste Activated Sludge (WAS), organic acids are released in the process. These organic acids are converted more quickly during the anaerobic digestion process allowing for:

  • Increased biogas production by approximately 30%
  • Dryer cake solids
  • Lower polymer consumption
  • Higher digester loading rates
  • More efficient mixing and pumping due to lower viscosities
  • Reduction of digester foaming
  • Optional Class A Biosolids production

This results in lower dewatering and disposal costs. The viscosity of the hydrolyzed sludge is drastically lowered (by up to 80%) allowing for higher digester loading rates, reduced digester foaming, more efficient pumping and digester mixing.

Using the heat from the hydrolysis process to heat the anaerobic digesters, operational costs of the system are further minimized. The system works with hot water between 150 to 170 degrees Fahrenheit under atmospheric pressure.