Check whether a contact tank delivers enough disinfection. CT = free-chlorine residual × effective contact time (T10, after the baffle factor). Enter the residual, tank volume, peak flow and baffling, then compare the achieved CT to the CT your target log-inactivation requires.
| Free-chlorine CT guide (pH 7, 10°C, approx.) | CT (mg·min/L) |
|---|---|
| Giardia โ 0.5-log | ~17 |
| Giardia โ 1-log | ~35 |
| Giardia โ 2-log | ~70 |
| Giardia โ 3-log | ~104 |
| Viruses โ 4-log | ~6 |
Send your influent analysis and our engineers assess your process and recommend a tailored treatment solution — free, confidential and no obligation.
Select the regulatory standard for your country — it sets which parameters we need for a compliance-aware process assessment.
Required parameters for the chosen standard are flagged on the sample form. You can still submit a partial set and we will advise what else to test.
Your sample is stored against your company so we can track the project. Provide a company name or email as a minimum.