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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

Biological nutrient removal via conventional denitrification/nitrification Source: Judd Water & Wastewater Consultants / YouTube

Biological nutrient removal via conventional denitrification/nitrification

In this video, Simon Judd gives an overview of nitrogen removal in MBRs. A taster for Judd Water & Wastewater Consultants' bespoke training package: MBR Insights.

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Anaerobic digestion features and blogs

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Anaerobic digestion optimization through thermal hydrolysis pre-treatment

Pre-treatment of sludge by thermal hydrolysis upstream of anaerobic digestion is used to improve AD efficiency. A study looked at (pre-)commissioning data for a full-scale AD installation undergoing upgrading with TH to assess the basis for optimisation.

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