01 |
Microscreening |
02 |
Chlorination (hypochlorites or chlorine gas) |
03 |
Chlorine dioxide |
04 |
Chloramination |
05 |
Ultraviolet irradiation |
06 |
Ozonation |
07 |
Application of potassium permanganate |
08 |
Other disinfection or oxidation reagents |
09 |
Fluoridation |
10 |
Alkalinity adjustment for process control |
11 |
pH adjustment for process control |
12 |
pH adjustment for corrosion control |
13 |
Alkalinity adjustment for corrosion control |
14 |
Corrosion control inhibitors |
15 |
Coagulation - aluminum-based |
16 |
Coagulation - ferric-based |
17 |
Other coagulant |
18 |
Enhanced coagulation |
19 |
Flocculation |
20 |
Sedimentation |
21 |
Dissolved air flotation |
22 |
Other clarification |
23 |
Filtration - granular media |
24 |
Granular activated carbon as part of filter media |
25 |
Granular activated carbon - separate unit |
26 |
Microfiltration (membrane) |
27 |
Ultrafiltration (membrane) |
28 |
Filtration - cartridge or bag |
29 |
Filtration - slow sand |
30 |
Aeration |
31 |
Air stripping |
32 |
Lime softening |
33 |
Activated alumina |
34 |
Ion exchange |
35 |
Sequestering |
36 |
Greensand filtration |
37 |
Powdered activated carbon |
38 |
Reverse osmosis or nano filtration |
39 |
Other processes |