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Thermochemical processes

Thermochemical methods are employed for either significantly reducing the sludge solids content, or pre-treating sludge upstream of anaerobic digestion (AD) to increase the biodegradability of the organic carbon. When operated at elevated temperatures, i.e. for solids destruction rather than for AD pre-treatment, they provide energy recoverable either as heat (for oxidative processes) or a combustible gas or liquid (non-oxidative processes).

Thermochemical processes related videos

Example of pyrolysis process for sewage sludge: the Eisenmann Pyrobuster® Source: Eisenmann SE /

Example of pyrolysis process for sewage sludge: the Eisenmann Pyrobuster®

An example of the pyrolysis process for sewage sludge: the Eisenmann Pyrobuster® for the thermal treatment of sewage sludge.

Thermochemical processes features and blogs

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Blog

Biosolids vs sewage sludge

Biosolids are usually considered to be the useful fraction of the sewage sludge. They are generally higher in solids concentration and lower in pathogen content, having gone through a stabilisation process such as chemical dosing, digestion and/or drying.

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