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Heating

Thermal conditioning processes can be employed to improve the efficiency of both dewatering and anaerobic digestion and are usually based on either wet air oxidation or hydrothermal treatment. This results in partial degradation of the sludge solids, making the resulting material more biodegradable as well as more dewaterable than the untreated sludge.

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The CAMBI hydrothermal sludge treatment process Source: CAMBI THP / YouTube

The CAMBI hydrothermal sludge treatment process

Video demonstrating the CAMBI THP and anaerobic digestion process to produce biogas.

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Blog sludge worth shutterstock 16047946
Blog

How much is sludge worth?

The UK regulator OFWAT has introduced legislation based on the notion of sludge as a resource. Its value is often expressed in terms of calorific content, and the phosphate is also potentially recoverable. But how exactly should sludge value be quantified?

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