Fecha registrada: August 14 2014

Duration: 25 minutes 29 seconds

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.

Table of contents
1. Zeta potential in water treatment
01:28
2. Zeta potential in water treatment
00:34
3. Introduction
01:05
4. Coagulation control in water treatment
01:15
5. Origins of Surface Charge in Aqueous Media
00:40
6. Zeta Potential and Dispersion Stability
00:44
7. Factors Affecting Zeta Potential
00:29
8. pH
01:40
9. Measuring Zeta Potential
01:18
10. Laser Doppler Electrophoresis
00:47
11. Traditional Water Treatment, Process
00:34
12. Water Treatment Process
00:33
13. Water Treatment Control Data
01:19
14. On-line Zetasizer WT
00:14
15. Beta test at Wemlinger plant
00:09
16. Direct Filtration Plant
00:11
17. Beta test at Wemlinger plant
00:56
18. Lab Zeta vs. On-line Zeta
00:28
19. Lab Zeta vs. On-line Zeta
00:18
20. On-line data
00:56
21. Observed negative effect of Rapid mixing
00:48
22. On-line data
00:25
23. Zeta vs. SCM
00:34
24. Wemlinger operators say
00:38
25. Business case considerations
01:53
26. Business case considerations
00:26
27. Conclusions
00:48
28. Contact Information
04:19