Table 1 Summary of studies of inactivation of E. coli and MS2 virus with different technologies
From: Virus and bacteria inactivation by CO2 bubbles in solution
Pathogen | Treatment | Log 10 reduction | Time (s) | Solution | pH | Solution temp, °C | Source |
|---|---|---|---|---|---|---|---|
E. coli | Thermal inactivation 60 °C | 6 log | 1800 | Sewage water | 8 | 60 | |
2.0 mg O3/l | 1.3 log | 300 | Tap water | 7.6 | 23 | ||
2.0 mg Cl2/l | 2 log | 300 | Tap water | 7.6 | 23 | ||
UV (0.78 mW/cm2) at 295–400 nm | 3.8 log | 300 | Natural water | 7 | Room temp. | ||
DPCD, CO2 at 197 atm and 34 °C | 2.5 log | 600 | Sterilised water |  | 34 | ||
Bubble column, CO2 at 200 °C, 1 atm | 2.3 log | 300 | 0.17M NaCl | 6 | 49 | Fig. 2b, this study | |
MS2 virus | 0.1 mg O3/l | 1.2 | 180 | Ultrapure water | 7 | 22 | |
1.0 mg H2O2/l | 0.001 log | 90 | 0.01 M Phosphate buffer | 6-10 | 3–10 | ||
30 mg Cl2/l | 1 log | 300 | Primary sewage effluent | 8 | 15 | ||
UV (0.19 mW/cm2) | 3.5 log | 180 | Ultrapure water | 7 | 22 | ||
Bubble column, CO2 at 200 °C, 1 atm | 3 log | 230 | 0.17 M NaCl | 6 | 49 | Fig. 1, this study | |
Bubble column, air at 200 °C, 1 atm | 0.17 log | 300 | 0.17 M NaCl | 6 | 52 |
