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Sludge conditioning

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Introduction to sludge conditioning

Sludge thickening and dewatering processes normally require pre-treatment to assist the separation of the water from the solids. This pre-treatment is referred to as conditioning, which takes the form of either:

  • chemical conditioning, by dosing with inorganic coagulants (such as iron or aluminium) and/or organic flocculants (or polymers), or
  • thermal conditioning by heating the sludge under controlled conditions.
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The CAMBI hydrothermal sludge treatment process Source: CAMBI THP / YouTube

Hydrothermal sludge treatment

A short animation of the Cambi THP Process and how Cambi enhances anaerobic digestion of waste to make biogas.

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Features and blogs

Explore features and blogs around sludge conditioning

Schematic of intensification of AD by thermal hydrolysis, showing thickening, TH, AD and post-AD DW. Coversion of biogas be CHP engine included.

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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