Proceedings

Enhancing anaerobic digesters efficiency through thermal pre-treatment: impacts on sludge composition and trace element bioavailability in full-scale sites: PRESENTATION ONLY

Nasar, N.1, Pizzagali, G.2, Coulton, F.1 and Bajon-Fernandez, Y.1, 1Cranfield University, UK, 2Anglian Water, UK

(free)

Key findings: Influence of pre-treatment on macromolecule solubilization

• THP promotes solubilisation of proteins and fibres in digester feed

• THP influences composition of digestate- Different strategy for optimization?

Soluble profiles at THP and conventional sites

• Digesters receiving THP pre-treated sludge has higher residual soluble organics.

• Increased solubilization but less utilization in digester.

• Higher post-AD fugitive emissions?

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