Test | Scavenger added | Log reduction achieved | Disinfection rate constant (k) [s−1] | ||
After 10 min | After 40 min | Step 1 | Step 2 | ||
Test I-1 | Mannitol (•OH blocked) | 0.67 | 4.26 | 0.149 | 0.279 |
Test I-2 | SOD (blocked) | 0.66 | 5.14 | 0.147 | 0.333 |
Test I-3 | Catalase (H2O2 blocked) | 0.44 | 3.78 | 0.106 | 0.249 |
Test I-4 | Mannitol, SOD, Catalase | 0.29 | 3.22 | 0.064 | 0.236 |
Test I-5 | No scavengers | 0.96 | 6.87 | 0.223 | 0.460 |
Test I-6 | Control test of UV alone | 0.39 | 0.77 | 0.092 | 0.026 |