TABLE 1.
Water quality comparison using saltwater AOC and TOCa
| Source and type of water | AOC (μg acetate-carbon/liter) (mean ± SD) | TOC (mg/liter) (mean ± SD) |
|---|---|---|
| Tampa Bay, FL | ||
| Tampa Bay raw | 360 ± 180 | 5.4 ± 0.3 |
| Chlorine dioxide | 440 ± 290 | 5.4 ± 0.3 |
| Pre-sand filtration | 150 ± 90 | 5.1 ± 0.2 |
| Post-sand filtration | 30 ± 10 | 4.9 ± 0.2 |
| Diatomaceous earth filters | 30 ± 10 | 4.9 ± 0.1 |
| Cartridge filters | 130 ± 90 | 4.9 ± 0.1 |
| Monterey Bay, CA | ||
| Raw inlet | 30 ± 20 | 1.4 ± 0.4 |
| Self-cleaning filter (100 μm) | 20 ± 20 | 1.5 ± 0.4 |
| Ultrafilter | ||
| 0.04-μm pore size | 10 ± 10 | 1.5 ± 0.6 |
| 0.01-μm pore size | 10 ± 15 | 1.5 ± 0.7 |
| Cartridge filters | <10 | 1.4 ± 0.5 |
a
Testing was performed on samples collected at the Tampa Bay Desalination Facility, Florida, and the Moss Landing, California, desalination pilot plant. Florida samples were collected over three consecutive days in November 2009, and California samples were collected in March, June, September, October, November, and December 2009.