The latest news regarding TAL operations.

Update 26/03/2021: Results lab-scale and large scale Sea-Aeration testing.

Regarding the R&D working paper released on November 2020: Aeration by Sea used in combatting airborne viruses in ventilation systems. We are enthusiastic to share our final report conclusions. In relation to these test results, a second R&D position will be released in light of these findings.

The main achievements, based on the experiments with the lab-scale and the large-scale ventilation systems can be summarized as:

  • Optimized positioning of the virus catcher in the ventilation tube without causing important obstructions of airflow;
  • Experimental demonstration of a high phage-capturing capacity of the treated filter: up to 94 % (phage) decrease;
  • Demonstration of fast die-off of captured phages on the treated filters: log 3 PFU decrease;
  • Demonstration of important die-off of captured phages on the filters: up to 60 % decrease within 1 hour of air recirculation and over 99 % overnight.
  • No important detachment of the captured phages from the treated filters;
  • No bacterial growth on the filter, during a period of 2 months (static tests), and no Legionella growth on a treated filter that was incubated in the air duct for one month;
  • Long-lasting phage capturing capacity of pretreated filter (1-2 weeks; longer-term experiments ongoing);
  • The developed formulation can be sprayed at regular intervals for the reactivation of filter properties.

The first proof of concept is produced and being actively tested at the WTF site by Revive in Ghent Belgium.

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