Table 1.
The difference of colony forming units (at Log base 10) between the blank samples and the treated samples with metal plates and filter layers.
| Log Difference | ||||
|---|---|---|---|---|
| Treatment | Filter | |||
| #0 | #1 | #2 | #3 | |
| SS-0 | 0.137 ± 0.02 | 0.111 ± 0.09 | 0.219 ± 0.03 | 0.361 ± 0.02 |
| Cu-0 | 0.379 ± 0.05 | 0.354 ± 0.05 | 0.239 ± 0.09 | 0.308 ± 0.10 |
| SS-Eap | 0.476 ± 0.14 | 0.353 ± 0.14 | 0.348 ± 0.02 | 0.339 ± 0.04 |
| Cu-Eap | 0.688 ± 0.01 | 0.572 ± 0.02 | 0.368 ± 0.13 | 0.242 ± 0.17 |
* Note: Stainless steel and copper with NO electricity added (SS-0, Cu-0) and with added electricity (SS-Eap, Cu-Eap).