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Anaerobic digestion

Anaerobic digestion (AD) is the most extensively employed sludge stabilisation process. AD stabilises the sludge biologically in the absence of air. In doing so, it reduces the amount of volatile solids by their conversion to a biogas (methane CH4, carbon dioxide CO2 and water H2O). The biogas then demands further processing for recovery and reuse of its methane content.

Anaerobic digestion related videos

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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Anaerobic digestion features and blogs

HTC/AD integration flowsheet
Feature

Co-processing of sewage digestate by hydrothermal carbonisation

Hydrothermal carbonisation (HTC) can be used to co-process anaerobic digestion (AD) digestate and lignocellulosic (or plant-based) feedstocks to improve the the hydrochar product quality. This AD waste co-processing route has been studied at bench scale.

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