| 01Conventional treatment |
Conventional treatment |
| 02Direct filtration |
Direct filtration |
| 03Granular media filtration |
Granular media filtration |
| 04Cartridge or bag filter |
Cartridge or bag filter |
| 05Slow sand filtration |
Slow sand filtration |
| 06Granular media filtration with other filtration |
Granular media filtration with other filtration |
| 07Membrane filtration |
Membrane filtration |
| 08Membrane filtration with other filtration |
Membrane filtration with other filtration |
| 09Disinfection only |
Disinfection only |
| 10Disinfection and other (unfiltered systems) |
Disinfection and other (unfiltered systems) |
| 11 |
No treatment |
| 12No disinfection with other treatment |
No disinfection with other treatment |
