How Advanced Anaerobic Digestion Reduces the Carbon Impact of Biosolids Management


Duration: 1 hour

How Advanced Anaerobic Digestion Reduces the Carbon Impact of Biosolids Management

Globally, the water industry uses a lot of energy for the treatment of wastewater and its distribution. Subsequently, it can be a large emitter of carbon with detrimental impacts on the planet. Fortunately, sludge produced from wastewater treatment can be digested to produce biogas which can be used to offset fossil-fuel derived electricity, or displace vehicle fuel.

This presentation looks at how digestion, especially enhanced digestion can reduce the carbon footprint of biosolids management, irrespective of the outlet of the biosolids. As well as the production of renewable energy, advanced digestion has other environmental benefits including:

  • Reduction in biosolids production
  • Improvement in dewatering
  • Increase in digestion capacity to enable digestion of organics, and
  • Generation of higher quality biosolids

Speaker: Dr. Bill Barber

Bill Barber - Technical Director, Phd
Dr Bill Barber is the Technical Director for Cambi Inc. in North America. In this role he develops biosolids projects and assists with research. Prior to this, Bill worked for AECOM in North America and Australia providing consulting services for biosolids projects.

Previously, Bill worked for the UK’s largest Water Utility – United Utilities, in a variety of strategic, technical, financial and research roles related to biosolids and was instrumental in the development of Europe’s largest thermal hydrolysis project. He has also developed a carbon model for United Utilities and his work is well published in WEF technical bulletin.

Bill is a reviewer for several peer review journals and recently an author of IWA’s book on Sludge Thermal Hydrolysis - Application & Potential. Bill has a PhD and degree in Biochemical Engineering from Imperial College, London and is a Chartered Engineer.