Successful technical sessions from previous events have included:

- Sludge conditioning and novel conditioners
- Advances in thickening and dewatering technologies
- Dewatering liquor treatment and resource recovery
- Advanced digestion processes for enhancing energy recovery
- Energy from sludge
- Sludge rheology and its impact on downstream processing
- Future trends in anaerobic digestion – methane, hydrogen and solvents
- The future of co-digestion and the implications of the OFT study
- Optimising biomethane usage
- The likely impact of the RHI and novel technologies for heat recovery
- Digestate recycling routes and new opportunities for adding value to digestate
- What is on the horizon, the view from OFWAT, EU and the regulators