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Oxidative thermochemical treatment

Waste incinerator 82392457

Oxidative thermochemical treatment of sludge

Oxidative methods for sludge thermochemical treatment comprise incineration, wet air oxidation (WAO) and supercritical water oxidation (SCWO).

These processes convert the combustible organic matter to primarily carbon dioxide and water, along with other gaseous oxidised byproducts (such as nitrogen oxides or NOx) present at lower concentrations, and a solid residue. The methods differ in terms of the operational temperature and pressure, the required feed sludge water content, and the nature and concentrations of gaseous and solid products generated.

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Schematic of intensification of AD by thermal hydrolysis, showing thickening, TH, AD and post-AD DW. Coversion of biogas be CHP engine included.
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Pretty intense: the intensification of sewage sludge processes

Sludge intensification processes increase the sewage sludge solids concentration through thickening/dewatering or the biogas generation by digestion. But at what point do you stop extracting more water from the sludge or enhancing biogas production?

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Example of sewage sludge incineration process, Buski Source: Kuzu Grup / YouTube

Example of sewage sludge incineration process, Buski

An example of a Kuzu Grup fluidized bed sludge incineration and energy production plant

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