Intensifying biological treatment through selection processes

IWA Nutrient Removal, Nutrients, Water Treatment

Target Audience

Academics, Utility operators and manager, Consultants, Regulators, and Students


Intensification of biological nutrient removal (BNR) in continuous flow systems holds the key to sustainable wastewater treatment. The importance of microbial ecology and morphology in biological treatment systems for water reclamation and resource recovery cannot be overstated.

This webinar aims to help establish the enduring quest for the perfect floc to intensify treatment as initially promoted by Prof. Dr David Jenkins (also endearingly known as ‘The Floc Doc‘) and his collaborators and former students.

The webinar will also offer a tribute to late Dr David Jenkins and reminisce his important contributions over a career spanning over sixty years in environmental engineering and science.

Learning Objectives

After this webinar, participants will be able to know more about:

  • Existing knowledge around settling of activated sludge, including the role of bacterial density to improve the process
  • The latest thinking in biological selection for form and function
  • Key biological selection forces for granulation in continuous flow systems
  • Examples of full-scale implementation of BNR intensification strategies in continuous flow systems


Webinar Resources:

  • Article in memoriam: A Remembrance of Prof. David Jenkins. Read the article here (extract from MEWE SG Newsletter, June 2021);

Additional Resources:

  • Webinar presentation:  download it here.


International Water Association


  • Krishna Pagilla, Professor of Environmental Engineering, University of Nevada, United States
  • Andrew Schuler, Professor at University of New Mexico, United States
  • Mari Winkler, Assistant Professor at University of Washington, United States
  • Pusker Regmi, Process Engineer at Brown and Caldwell, Washington DC, United States
  • JB Neethling, Director HDR Wastewater Treatment and Effluent Management