| 00:00:00 | Welcome |
| 00:02:27 | Zetasizer WT On-line Zeta potential for water treatment |
| 00:02:48 | Introduction |
| 00:04:11 | Coagulation control in water treatment |
| 00:04:47 | Zeta Potential |
| 00:05:07 | Zeta potential is NOT streaming current |
| 00:06:04 | Electrophoretic Light Scattering (ELS) |
| 00:06:59 | Measuring Zeta Potential |
| 00:07:48 | Laser Doppler Electrophoresis |
| 00:08:15 | Setting a Zeta Potential operating range |
| 00:09:22 | Zeta optimization helps control Turbidity, NOM, DOC |
| 00:09:42 | Zetasizer WT |
| 00:10:59 | On-line Zetasizer WT |
| 00:11:58 | On-line Zetasizer WT- HMI |
| 00:12:35 | Zeta potential and Ferric Sulphate |
| 00:12:54 | Responding to changing conditions… |
| 00:13:28 | Detecting a process upset… |
| 00:14:05 | Early access unit at Wemlinger plant |
| 00:14:15 | Wemlinger WPF |
| 00:14:35 | Direct Filtration Plant |
| 00:14:54 | Beta test at Wemlinger plant |
| 00:15:24 | Lab Zeta vs. On-line Zeta |
| 00:15:44 | Lab Zeta vs. On-line Zeta |
| 00:16:00 | On-line data |
| 00:16:53 | Observed negative effect of Rapid mixing |
| 00:17:35 | On-line data |
| 00:17:59 | Zeta vs. SCM |
| 00:18:29 | Wemlinger Operators say |
| 00:19:03 | Business Considerations |
| 00:20:56 | Business Considerations |
| 00:21:33 | Some Pics |
| 00:22:20 | Summary |
| 00:23:03 | Thank you for your attentionAny questions?Please type your questions in using the Q&A panel on the right side of your screen |
| 00:31:13 | Contact Information |
Zeta potential or particle charge is the driving force responsible for the stability and flocculation of particles in a water treatment plant. Neutralization of this charge by oppositely charged coagulants is key for formation of stable, easily filterable floc. The difficulty faced by water treatment plants is that decisions regarding the required dose of coagulant are often based on very rudimentary measurements and tend to be operator dependent, resulting in frequent over-dosing and potential for plant upsets. Measurement of zeta potential by Laser Doppler micro-electrophoresis has been used as a laboratory method for many years and has proven to be an accurate, reliable and robust means of understanding the dosing demand. Now this technology moves on-line and delivers previously unattainable information as well as significant financial benefits to the user. Join us for this presentation launch of the Zetasizer WT – new on-line system developed specifically for water treatment plants.