Development of the Water Reuse Assessment Tool: a multi-criteria tool to support decision making for water reuse in a systematic and context-based approach
- In the current water-crisis context, water reuse projects are increasing priority for Total
- Decisions to invest in such reuse technologies are historically driven by economic profitability
- Other drivers such as water risks, environmental and social impacts could justify water reuse and should be considered while assessing a potential project
- Benchmark of water sustainability metrics
- Expert advice, recommendations and workshops to assess and select most relevant indicators
- Development of the Water Reuse Assessment Tool: a multi-criteria tool to support decision making for water reuse in a systematic and context-based approach
The Water Reuse Assessment Tool addresses the following questions:
- Is the water reuse solution economically profitable?
- Are there any physical, regulatory or reputational water-related risks? Does the water reuse project allow mitigating them?
- Does water reuse reduce or increase the environmental footprint?
- Does water reuse generate positive or negative social impacts?
- What is the performance of alternative water reuse solutions compared to the current solution?
Developing such science-based assessment methods for prioritizing investment decisions allows Total to evaluate the actual benefit of water reuse considering all sustainability dimensions.
Regarding the environmental, water risk and social aspects, the tools permits Total to move from empirical and perception-based decisions to quantified-based decisions
“This interactive and multi-criteria approach enabled Total to select the most promising water reuse solution and to eliminate those that are not.”
Matthieu Jacob, Water Treatment Specialist