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Table 2 Physical parameters and chemical composition of the Bruchsal geothermal fluid

From: Water–rock interactions in the Bruchsal geothermal system by U–Th series radionuclides

  Flow rate [l/s] Tsampling [°C] Conductivity at 25 °C [mS/cm] pH [] Eh [mV] TDS [g/l]
Mean 25.5 21.5 155.6 5.3 81 131
Min 23.3 18.7 152.5 5.0 91 127
Max 29.5 26.0 158.1 5.9 72 135
  K [mg/l] Na [mg/l] Ca [mg/l] Mg [mg/l] Cl [mg/l] SO4 [mg/l]
Mean 3523 40,543 9478 397 74,910 339
Min 3309 38,134 9052 361 73,250 299
Max 3642 42,765 9956 437 76,166 492
  Sr [mg/l] Ba [mg/l] Br [mg/l] HCO3 [mg/l] Fe [mg/l] Fe2+ [mg/l]
Mean 387 9.2 312 341 50.1 32.7
Min 362 6.7 284 255 49.2 26.3
Max 400 9.6 341 374 51.5 44.4
  Fe3+ [mg/l] Mn [mg/l] Pb [mg/l] As [mg/l] Al [mg/l] Cd [mg/l]
Mean 19.4 25.7 3.0 9.7 1.8 0.2
Min 12.2 23.6 1.5 6.0 1.1 0.1
Max 24.0 27.5 5.5 12.0 2.6 0.4
  1. Mean values are based on the analysis of 32 samples