Related Experiment Video
Updated: Jun 17, 2025

Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater
Published on: March 6, 2017
Towards a modelling framework for nature-based solutions in wastewater treatment
Alireza Dehghani Tafti1, Dwight Houweling2, Jean-Michel Perron3
1Department of Civil, Geological and Mining Engineering, Polytechnique Montreal, 2500 Polytechnique Road, Montreal, QC H3T 1J4, Canada; modelEAU, Département de génie civil et de génie des eaux, Université Laval, 1065 Avenue de la Médecine, Québec, QC G1V 0A6, Canada
This study outlines best practices for modelling nature-based solutions (NBS), developing frameworks to identify necessary sub-models for various NBS types and use cases. It explores applying water resource recovery modelling to NBS, highlighting benefits, challenges, and future research needs.
Area of Science:
- Environmental Engineering
- Water Resource Management
- Ecological Engineering
Background:
- Nature-based solutions (NBS) are increasingly recognized for their environmental benefits.
- Standardized modelling approaches for NBS are lacking, hindering their widespread adoption and optimization.
- Water resource recovery modelling principles offer a potential foundation for NBS assessment.
Purpose of the Study:
- To establish best practices for modelling nature-based solutions (NBS).
- To develop and refine modelling frameworks for diverse NBS types and applications.
- To evaluate the applicability of water resource recovery modelling to NBS.
Main Methods:
- A workshop on NBS modelling was conducted, gathering expert perspectives.
- Four real-world NBS case studies (aerated lagoon, biofilm-enhanced aerated lagoon, stormwater basin, constructed wetland) were analyzed.
- Iterative framework development, moving from case-study-derived models to use-case-focused models, was employed.
Main Results:
- An initial modelling framework with eight sub-models was proposed, later expanded to 10 sub-models for broader NBS categories.
- A refined framework focused on 13 primary NBS use cases, identifying 10 essential or potentially required sub-models.
- The frameworks facilitate the selection of appropriate sub-models for specific NBS systems and applications.
Conclusions:
- The developed frameworks provide a structured approach to NBS modelling, aiding in the identification of necessary components.
- Applying water resource recovery modelling best practices to NBS presents both opportunities and challenges.
- Further research is recommended to advance NBS modelling and its integration into water management strategies.
Related Concept Videos
Typical Model Studies
Design Example: Creating a Hydraulic Model of a Dam Spillway
Modeling and Similitude
Bioremediation
Design Example: Analyzing Capacity Contours for Flood Risk Assessment

