U3 | SSB effluent 3 | D3 | U4 | SSB effluent 4 | D4 | U5 | SSB effluent 5 | D5 | |
---|---|---|---|---|---|---|---|---|---|
Conductivity (µs/cm) | 460 | 605 | 474 | 476 | 950 | 490 | 506 | 756 | 520 |
Water temp. (°C) | 10.5** | 10.4 | 9.8** | 15.7** | 13 | 14.8** | 12.4** | 13.2 | 12.4** |
O2 saturation (%) | 100 | 91.1 | 96 | 107.0 | 103 | 110 | 102.4 | 95.1 | 97.7 |
O2 content (mg/L) | 10.41** | 9.47 | 10.1** | 9.9** | 10 | 10.4** | 10.27** | 9.28 | 9.66** |
NH–N (mg/L) | <0.04** | 0.07 | <0.04** | <0.04** | 0.09 | <0.04** | <0.04** | <0.04 | <0.04** |
NO–N (mg/L) | 0.005 | 0.016 | 0.006 | 0.01 | 0.015 | 0.01 | 0.005 | 0.01 | 0.005 |
NO3–N (mg/L) | 0.7 | 2 | 0.9 | 1.10 | 2.8 | 1 | 1.2 | 3.9 | 1.1 |
PO4-P (mg/L) | <0.05* | <0.05 | <0.005* | <0.005* | <0.05 | <0.005* | <0.005* | <0.05 | <0.005* |
Carbonate hardness (°dH) | 18 | 21 | 17 | 16.00 | 20 | 16 | 16 | 21 | 17 |
Overall hardness (°dH) | 18 | 21 | 18 | 17.00 | 22 | 18 | 19 | 23 | 18 |
pH | 8.27* | 8.1 | 8.23* | 8.40* | 8.25 | 8.4* | 8.4* | 8.25 | 8.4* |
Chloride (mg/L) | 8** | 61 | 11** | 11.00 | 121 | 13* | 11* | 42 | 15* |