Table 2.
pH variation and overall volumetric productivities of the different consortia formed by the species At. thiooxidans DSM 14887T and L. ferrooxidans DSM 2705T.
| Consortium | ΔpH | Qp [mg·L−1·h−1] | |
|---|---|---|---|
| Fe 3+ | SO42− | ||
| 50:50 of At. thiooxidans DSM 14887T and L. ferrooxidans DSM 2705T (control) | 0.24 | 2.8 | 6.6 |
| 50:50 of At. thiooxidans DSM 14887T and L. ferrooxidans DSM 2705T (adapted) | 0.38 | 9.7 | 11.7 |
| 70:30 of At. thiooxidans DSM 14887T and L. ferrooxidans DSM 2705T (control) | 0.23 | 3.7 | 6.0 |
| 70:30 of At. thiooxidans DSM 14887T and L. ferrooxidans DSM 2705T (adapted) | 0.36 | 9.1 | 5.7 |
| 30:70 of At. thiooxidans DSM 14887T and L. ferrooxidans DSM 2705T (control) | 0.12 | 4.7 | 4.4 |
| 30:70 of At. thiooxidans DSM 14887T and L. ferrooxidans DSM 2705T (adapted) | 0.32 | 3.6 | 6.5 |
| Using L. ferrooxidans DSM 2705T as a pre-colonizer (control) | 0.18 | 3.1 | 4.9 |
| Using L. ferrooxidans DSM 2705T as a pre-colonizer (adapted) | 0.30 | 5.4 | 6.1 |
| Using At. thiooxidans DSM 2705T as a pre-colonizer (control) | 0.23 | 2.0 | 8.9 |
| Using At. thiooxidans DSM 2705T as a pre-colonizer (adapted) | 0.37 | 7.9 | 9.6 |
Standard error (n=6) ≤5%.