Water disinfection
COFRAC certified laboratory tests
The performance of Olimpe’s in-line electrolysis technology is attested by the analyses carried out by the QUALYSE laboratories, whose processes are regularly monitored by COFRAC (the French Accreditation Committee) and who conform to a highly rigorous standard of precision.
A 200 litre tank full of very low salinity demineralised water which had been contaminated with a dose of pathogenic micro-organisms was used. The water was then treated with Olimpe technology. The laboratories took samples at different stages of the process and analysed them to measure the quality and durability of the disinfection achieved with Olimpe.
Context and conditions of sampling
Micro-organisms tested for
- Coliform bacteria
- E-coli
- Enterococci
- Salmonella
- Aerobic flora revivifiable at 22°C and 36°C
- Spores of sulphite-reducing anaerobes
Analysis results
| Results of microbiological analyses | Sterile water |
Contaminated water |
Water treated by the Olimpe in-line electrolysis process | Unit of measurement | |||||
|---|---|---|---|---|---|---|---|---|---|
| Indicator | Micro-organism | P1 before load |
P2 after load |
P3 start |
P4 end |
P5 after 30 minutes |
P6 after 2 hours |
P7 after 4 hours |
|
| Fecal contamination | Coliform bacteria | <1 | 300 | <1 | <1 | <1 | <1 | <1 | CFU / 100 ml |
| E-coli | <1 | 300 | <1 | <1 | <1 | <1 | <1 | CFU / 100 ml | |
| Enterococci | <1 | 485 | <1 | <1 | <1 | <1 | <1 | / L | |
| Salmonella | Absence | Présence | Absence | Absence | Absence | Absence | Absence | CFU / 100 ml | |
| Water quality | Aerobic flora revivifiable at 36°C | <1 | 300 | <1 | <1 | <1 | <1 | <1 | CFU / ml |
| Aerobic flora revivifiable at 22°C | <1 | 250 | <1 | <1 | <1 | <1 | <1 | CFU / ml | |
| Resistance to disinfection | Spores of sulphite-reducing anaerobes |
<1 | 8 450 | 25 | <1 | <1 | <1 | <1 | CFU / 100 ml |
Analyses demonstrate the effectiveness of Olimpe:
✓ None of the tested-for micro-organisms are present in the water after treatment
✓ Disinfection is long-lasting, even after several hours.