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Table 2 Analytical results of in-vitro tests (glass ampule tests)

From: Use of in-vitro experimental results to model in-situ experiments: bio-denitrification under geological disposal conditions

Series Run Time (d) Liquid phase Gas phase Solid phase Relative growth rate of microorganism*1
pH TOC T-N NO3 NO2 NH3 N2 CO2 NH3 C H N
mmol/dm3 mmol/dm3 mmol/dm3
A 1 50 7.7 3.2 22 6.2 2.0 19 5.4 ND ND 18 44 3.8 0.67
2 6 6.9 130 13 8.6 0.7 3.4 3.4 ND ND 24 44 3.2 0.63
2 28 7.2 140 2.0 ND ND 3.4 9.0 ND ND 20 38 2.4 0.3
2 50 7.3 140 2.4 ND ND 3.4 8.4 ND ND 24 44 3.0 0.44
B 3 10 8.7 2.0 9.4 3.0 0.2 2.8 3.6 ND ND 17 38 5.2 0.32
4 10 8.5 2.0 50 44 1.6 2.6 2.8 ND ND 18 36 2.0 0.27
C 8 1 8.3 2.2 47 48 0.4 0.1 - - - 2.6 5.2 0.6 0.53
8 11 8.3 3.0 47 44 2.2 0.7 0.4 ND ND 0.9 1.4 0.2 0.04
9 1 8.3 1.7 47 46 0.4 0.1 - - - 1.6 2.8 0.2 0.85
9 11 8.4 3.2 47 44 2.2 0.7 0.4 ND ND 0.6 0.5 0.2 0.055
10 1 8.4 5.0 49 48 0.2 0.1 - - - 1.3 2.0 0.2 0.74
10 11 8.0 7.6 47 42 4.0 1.1 0.5 ND ND 2.2 2.4 0.6 0.058
11 1 8.3 30 50 50 ND 0.2 - - - 1.0 1.7 0.1 0.63
11 11 8.5 34 49 46 0.4 1.1 0.5 ND ND 3.2 5.0 0.3 0.013
  1. *1 Population of microorganisms relative to the initial solution.