Disinfection Design: ct value
ct ozone bacteria 4log to ct ozone virus 4log
Wastewater disinfection design data from Metcalf & Eddy 5th Ed. Covers CT values (concentration × time) for log inactivation of bacteria, viruses, Cryptosporidium, and Giardia lamblia by chlorine, chloramine, chlorine dioxide, ozone, and UV radiation; specific lethality coefficients; physical/chemical properties of Cl2, ClO2, SO2, and O3; ozone Henry's law constants; HOCl ionization constants vs. temperature; chloramine activation energy; TDS contributions from breakpoint chlorination; dechlorination agent stoichiometry; chlorine dosage ranges for process applications; total coliform removal by treatment process; disinfection byproduct (DBP) compounds; ozone system energy consumption; and peracetic acid (PAA) commercial formulation specifications.
| parameter type | parameter id | ct unit | ct value max (mg·min/L or mJ/cm2) | ct value min (mg·min/L or mJ/cm2) | description | disinfectant | log inactivation (log10) | organism |
|---|---|---|---|---|---|---|---|---|
| ct value | ct ozone bacteria 4log | mg·min/L | 0.04 | 0.02 | CT value for 4-log inactivation of Bacteria with Ozone | Ozone | 4 | Bacteria |
| ct value | ct ozone cryptosporidium 1log | mg·min/L | 4.5 | 4 | CT value for 1-log inactivation of Cryptosporidium with Ozone | Ozone | 1 | Cryptosporidium |
| ct value | ct ozone cryptosporidium 2log | mg·min/L | 8.5 | 8 | CT value for 2-log inactivation of Cryptosporidium with Ozone | Ozone | 2 | Cryptosporidium |
| ct value | ct ozone cryptosporidium 3log | mg·min/L | 13 | 12 | CT value for 3-log inactivation of Cryptosporidium with Ozone | Ozone | 3 | Cryptosporidium |
| ct value | ct ozone giardia lamblia 1log | mg·min/L | 0.3 | 0.25 | CT value for 1-log inactivation of Giardia lamblia with Ozone | Ozone | 1 | Giardia lamblia |
| ct value | ct ozone giardia lamblia 2log | mg·min/L | 0.5 | 0.45 | CT value for 2-log inactivation of Giardia lamblia with Ozone | Ozone | 2 | Giardia lamblia |
| ct value | ct ozone giardia lamblia 3log | mg·min/L | 0.8 | 0.75 | CT value for 3-log inactivation of Giardia lamblia with Ozone | Ozone | 3 | Giardia lamblia |
| ct value | ct ozone virus 2log | mg·min/L | 0.3 | 0.25 | CT value for 2-log inactivation of Virus with Ozone | Ozone | 2 | Virus |
| ct value | ct ozone virus 3log | mg·min/L | 0.45 | 0.35 | CT value for 3-log inactivation of Virus with Ozone | Ozone | 3 | Virus |
| ct value | ct ozone virus 4log | mg·min/L | 0.6 | 0.5 | CT value for 4-log inactivation of Virus with Ozone | Ozone | 4 | Virus |
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