4th International Symposium on Outfall Systems

Community Organizer:

The International Symposium on Outfall Systems (ISOS) 2023 is organized by the IAHR/IWA Joint Committee on Outfall Systems, under the auspices of the International Association of Hydro-Environment Engineering and Research (IAHR) and the International Water Association (IWA) and the Argentinian Federal Council of Sanitation System Entities (COFES) and Argentinian Water and Sanitation S.A (AySA).

ISOS 2023 aims to bring together leading experts in the fields of water resources, sanitation, hydraulics, water management, oceanography, biology, coastal and environmental engineering to exchange knowledge and discuss current technology, design and management issues relating to effluent discharges into coastal waters, rivers, and estuaries. The symposiums objective is to discuss the outfall system within its role combining wastewater treatment and reuse options and required environmental protection needs.



  • Materials and construction of outfalls
  • Environmental impacts of outfalls (assessment and mitigation). Water and sediment quality.
  • Biological assessments of discharges (biological sciences, public health risk assessments)
  • Methods for estimation of near field and far-field mixing and pollutant dispersion
  • Experimental techniques and laboratory studies
  • Computational techniques (CFD)
  • ntake/outfall systems for industrial applications (cooling water, desalination brine, ...)
  • Coastal-zone or river-basin management with outfall systems
  • Field measurement techniques and monitoring of outfall systems (onsite, remote sensing, modeling, combined)
  • Outfalls in rivers
  • Detection and fate of Sars Cov 2 virus in wastewater and outfall systems.
  • Ecologically friendly outfall structures (Building-with-Nature)
  • Discharge regulations and outfall investigations, including monitoring and compliance
  • Outfall perception, decision processes, treatment and outfall location trade-offs, community/society and culture of indigenous groups
  • Case studies Rio de la Plata and worldwide

Programme Committee

Name Affiliation Country
Philip Roberts
Chair United States Of America
Robin Morelissen
Co-Chair Netherlands
Majid Mohammadian
Co-Chair Canada
Matthew Wood
Co-Chair United Kingdom
Ozeair Abessi
Babol Noshirvani University of Technology Iran
Eric Adams
MIT United States Of America
Alejandro Barrio
Agua y Saneamientos Argentinos Argentina
Mitchell Baum
BMT Australia
Ed Beling
Intrawater Australia
Tobias Bleninger
UFPR Brazil
Daniel Botelho
BMT Australia
Diego Bottelli
Agua y Saneamientos Argentinos Argentina
Jim Bradley
Stantec New Zealand
Adrian Law
Nanyang Technological University Singapore
Angel Menendez
Universidad de Buenos Aires Argentina
Brett Miller
University of New South Wales Australia
Dongdong Shao
Beijing Normal University China
Scott Socolofsky
Texas A&M University United States Of America
Eduardo Yassuda
Tetratech Brazil
Lais Ferrer Amorim de Oliveria
University of São Paulo Brazil