Table 4 Fractions of soluble and particulate U and size distribution of particulate U in EPS extracts detected by ICP-MS (diluted 200 times)
From: Roles of extracellular polymeric substances in uranium immobilization by anaerobic sludge
Test | Time | Soluble (%) | Particulate (%) | Mean size (nm) | Particle concentration (parts/mL) |
|---|---|---|---|---|---|
Test 1 | Day 7 | 15.1 ± 1.3 | 84.9 ± 5.3 | 42.8 ± 3.5 | 90,667 ± 4431 |
Test 2 | Day 0 | 9.66 ± 0.7 | 90.3 ± 3.3 | 19.9 ± 0.9 | 58,646 ± 1947 |
Day 3 | 13.1 ± 1.0 | 86.9 ± 4.6 | 37.6 ± 2.4 | 364,762 ± 6707 | |
Day 5 | 15.5 ± 0.3 | 84.5 ± 6.1 | 41.7 ± 4.2 | 374,427 ± 7619 | |
Day 7 | 13.8 ± 0.7 | 86.2 ± 5.2 | 43.5 ± 1.1 | 384,747 ± 3377 | |
Test 3 | Day 7 | 14.5 ± 0.6 | 85.5 ± 3.3 | 42.3 ± 2.7 | 146,833 ± 7786 |
Day 7 after 4-day air exposure | 6.4 ± 0.4 | 93.6 ± 6.7 | 36.2 ± 1.3 | 523,062 ± 1044 | |
Test 4 | Day 7 | 14.7 ± 0.8 | 85.3 ± 2.9 | 43.6 ± 3.5 | 155,788 ± 3328 |