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Oxidative thermochemical treatment
An introduction to oxidative sludge thermochemical treatment methods
Sludge thermochemical treatment
Thermochemical methods for sludge
Thermochemical methods are used 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.
As with stabilisation and drying processes, thermochemical processes produce a stable sludge product. When operated at elevated temperatures, i.e. for solids destruction rather than AD pre-treatment, they provide energy recoverable either as heat or a combustible gas or liquid.
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