Table 2.
Parameters and values used in example calculations.
| Parameter | Value | Units | Reference |
|---|---|---|---|
| PCE spill volume | 0.096 | m3 | Lemke et al. 2004 |
| Spill radius (r) | 0.797 | m | Lemke et al. 2004 |
| Spill depth (h) | 8.315 | m | Lemke et al. 2004 |
| Average NAPL Saturation (SoAvg) | 0.017 | — | Lemke et al. 2004 |
| Porosity (n) | 0.36 | — | Lemke et al. 2004 |
| PCE density (ρPCE) | 1.623 × 106 | g/m3 | Verschueren 1983 |
| Rate-limited aqueous-phase PCE concentration (CaqPCE) | 30a | g/m3 | Abriola et al. 2005 |
| Length of surfactant flush | 10 | day | Abriola et al. 2005 |
| Bioenhanced dissolution factor | 5a | — |
Carr et al. 2000 Carr et al. 2000 Cope and Hughes 2001 Yang and McCarty 2002 |
| Apparent PCE concentration during SEAR (C) | 5.4 × 103 | g/m3 | Ramsburg et al. 2005 |
| Groundwater velocity (Vd) | 0.032 | m/day | Lemke et al. 2004 |
| Groundwater velocity during SEAR | 0.514 | m/day |
Abriola et al. 2005 Ramsburg et al. 2005 |
| Pore volume | 5.9 | m3 | Calculated |
| Pool length (Lp) | 1 | m | Calculated |
| Pool depth | 0.016 | m | Calculated |
| Number of independent pools | 6 | — | Calculated |
| Vertical dispersivity (αv) | 2.3 × 10−4 | m | Johnson and Pankow 1992 |
| Aqueous solubility of PCE | 150 | g/m3 | Verschueren 1983 |
| Equilibrium solubility of PCE in surfactant solution | 26,880b | g/m3 | Taylor et al. 2001 |
| PCE bulk aqueous phase diffusion coefficient (DaqPCE) | 5.7 × 10−5 | m2/day | Dekker and Abriola 2000 |
a
Assumed based upon range of reported values.
b
From reported weight solubilization ratio of 0.672 g of PCE per gram of surfactant (4% Tween 80 solution).