A critical success factor for water (re)use is the assessment of microbial safety risks.

1. The Quantitative Microbial Risk Assessment (QMRA+) tool supports the design and assesses the required treatment needed for water (re)use. QMRA+ is a valuable tool for quantitative microbial risk assessment that can be used to assess existing purification systems and to help determine their design requirements.

2. The subsurface Transport and Removal (SuTRa) tool builds on microbial risk assessment to specifically model (plant) pathogen removal during subsurface passage of managed aquifer recharge and infiltration schemes. This helps determine the minimum design parameters and residence time required for pathogen removal. The objective of this training is to give attendees insight into two valuable tools for assessing microbial safety risks in water (re)use scenarios and applications, including drinking water and agriculture.

Video: Tools for assessing microbial safety of water reuse