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Thermal hydrolysis processes

Hydrothermal processes (HTPs) for treating sludge employ elevated temperatures and pressures in wet conditions and in the absence of oxygen. They can be employed for either pre-treating sludge prior to anaerobic digestion (AD) or direct conversion of organic carbon to useful combustible products. Hydrothermal pretreatment for AD employs lower operating temperatures and pressures than the direct conversion processes and do not substantially reduce the organic carbon content.

Thermal hydrolysis processes related videos

TerraNova® Ultra Hydrothermal Carbonization of Sewage Sludge Source: TerraNovaEnergy / YouTube

TerraNova® Ultra Hydrothermal Carbonization of Sewage Sludge

A video to demonstrate the principles of the TerraNova® Ultra Hydrothermal Carbonization of sewage sludge.

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Thermal hydrolysis processes features and blogs

Fig. 4.  SP filtrate and acidified sludge samples
Feature

Phosphorus recovery by sludge acidification and dewatering

A pilot-scale Danish study of phosphorus extraction from acidified anaerobic and aerobic sludge samples has revealed removal to be more effective from anaerobic sludges, even though the digested sludge alkalinity increases the total acid demand.

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