PONDUS Thermo-Chemical Hydrolysis Process

A continuous hydrolysis process combining caustic soda and heated water, 140 °F to 160 °F, to break down the cell membranes of the thickened waste-activated sludge (WAS)

The process releases organic acids which are consumed quicker in the anaerobic digestion process and increase biogas production. The thermal energy, required for the hydrolysis process, transfers and heats the digesters. As an energy-efficient system, PONDUS does not require heat exchangers to cool the sludge prior to digestion. The process drastically reduces the overall carbon footprint by decreasing solid waste disposal. PONDUS enables useful re-purposing of biosolids as a fertilizer, soil amendment or carbon source. The process also increases biogas production as renewable energy.

PONDUS results in lower dewatering costs, lower disposal costs and lower sludge viscosity. The process creates more efficient pumping and the digester mixing requires less energy.

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