| 00:00:00 | Zeta potential in water treatment |
| 00:01:28 | Zeta potential in water treatment |
| 00:02:02 | Introduction |
| 00:03:07 | Coagulation control in water treatment |
| 00:04:22 | Origins of Surface Charge in Aqueous Media |
| 00:05:02 | Zeta Potential and Dispersion Stability |
| 00:05:46 | Factors Affecting Zeta Potential |
| 00:06:15 | pH |
| 00:07:55 | Measuring Zeta Potential |
| 00:09:13 | Laser Doppler Electrophoresis |
| 00:10:00 | Traditional Water Treatment, Process |
| 00:10:34 | Water Treatment Process |
| 00:11:07 | Water Treatment Control Data |
| 00:12:26 | On-line Zetasizer WT |
| 00:12:40 | Beta test at Wemlinger plant |
| 00:12:49 | Direct Filtration Plant |
| 00:13:00 | Beta test at Wemlinger plant |
| 00:13:56 | Lab Zeta vs. On-line Zeta |
| 00:14:24 | Lab Zeta vs. On-line Zeta |
| 00:14:42 | On-line data |
| 00:15:38 | Observed negative effect of Rapid mixing |
| 00:16:26 | On-line data |
| 00:16:51 | Zeta vs. SCM |
| 00:17:25 | Wemlinger operators say |
| 00:18:03 | Business case considerations |
| 00:19:56 | Business case considerations |
| 00:20:22 | Conclusions |
| 00:21:10 | Contact Information |
Measure of particle charge is one of the key parameters used by water plant operators to evaluate the required amount of coagulant. This presentation discusses the use of zeta potential measurement and it's advantages as an absolute and specific indicator of charge. A case study describing the use of this technology by a Colorado water treatment plant as a laboratory and in-process tool for dosing optimization is presented.