Residual Biogas What does good look like: PRESENTATION ONLY
Steve Bungay and Joe Mann, AD Ingenuity, UK
Paul Fountain, Thames Water, UK
Matthew Smyth, Aqua Environment Solutions, UK
(Free)
Wastewater Treatment Permitted Residuals
• Urban Waste Water Treatment Directive (Annex 1)
• During anaerobic digestion, COD is converted to CH4
• Considering sludge treatment, is 75% reduction in COD, sensible logic for permitting residual biogas?
Sludge Treatment Permitted Residuals
• The Sludge (Use in Agriculture) Regulations (SUiAR)
Application rates
Limits for metals, nutrient content, and pH
• The Safe Sludge Matrix (SSM)
Application restrictions
Pathogen reduction
• The Biosolids Assurance Scheme (BAS)
Sludge treatment requirement–
HACCP
Product release