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and 9th ROS

10th-14th November, 2024


Welcome and invitation

Welcome to the IWA 17th International Conference on Small Water and Wastewater Systems (SWWS) and the 9th International Conference on Resource Oriented Sanitation (ROS), hosted by the International Water Association (IWA) Specialist Groups for Small Water and Wastewater Systems and Resource Oriented Sanitation, respectively.

After a long period of pandemic, we are thrilled to announce that we are returning to hold both conferences in Curitiba, Paraná State, Brazil.


Our hosts for this special edition are the Brazilian Association of Sanitary and Environmental Engineering (ABES), the University of Paraná (UFPR), the Paraná State Sanitation Company (Sanepar) and the National Institute of Science and Technology for Sustainable Sewage Treatment Plants (INCT - ETES Sustentáveis).

Photo by Leonardo Bettinelli

In addition to discovering the beauty and culture of Curitiba, participants will have the opportunity to exchange experiences, review and assess research, engineering, and management practices from the past years. This event’s target audience is water and sanitation specialists, researchers, students, and companies offering solutions for resource recovery and small water and sewage treatment systems.

During the conferences, we aim to bring together participants from different parts of the world, particularly from the Americas, Europe and Asia. Our objective is to create an environment that fosters networking, learning, and collaboration among professionals in the field.

We extend a warm welcome to all attendees of the IWA 17th International Conference on Small Water and Wastewater Systems and the 9th International Conference on Resource Oriented Sanitation, proudly organized by ABES, UFPR, Sanepar and INCT ETEs Sustentáveis!

Karen Juliana do Amaral and
Gustavo Rafael Collere Possetti

IWA 17th SWWS and 9th ROS Conferences Co-Chairs

Historic Building at Praça Santos Andrade, Symbol of Curitiba.

Conferences Language

The official language in the conference will be English.

There will be oral and poster presentations, with a digital book of abstracts available for download from the conference website.


Upcoming Deadlines

Call for papers

December 2023

Registration Starts

December 2023

Abstract submission deadline

April 2024

Author’s notification

July 2024

Full paper submission deadline

Aug 2024

Early bird registration ends

Aug 2024

Final programme

Aug 2024

Standard registration ends

Nov 2024


Nov 2024

water conference topics

Conferences topics

  1. Case studies of small water and wastewater systems

  2. Resource-oriented sanitation solutions

  3. Energy efficiency in small water and wastewater systems

  4. Small scale and decentralized wastewater treatment and management systems

  5. Eco-solutions for wastewater treatment

  6. Management of sludge from small water and wastewater systems

  7. Non-sewered systems

  8. Monitoring and removal of emerging contaminants and pathogens

  9. Monitoring of water bodies

  10. Nutrients removal and recovery in source-separation systems

  11. Pathogen fate and removal in water and wastewater systems

  12. Sanitation solutions for rural communities

  13. Biogas management and energy recovery

  14. Odour control and carbon neutrality in wastewater systems

  15. Sludge treatment and reuse

  16. Water reuse (rain water harvesting, use of treated wastewater etc.)

  17. Management and planning tools (LCA, risk assessment, etc.)

  18. Social aspects, environmental policies and regulations

  19. Innovation, education, training and certification

  20. Environmental microbiology and population dynamics

  21. Process modelling

  22. Wastewater-based epidemiology

Thank you!

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