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Figure 5 | SpringerPlus

Figure 5

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

Figure 5

Variation of nitrogen species and microorganism in the presence of humic acid as an electron donor (Run8-11). Initial humic acid concentrations are 0 (small black circles and dotted line), 10 (black marks), 100 (gray marks) and 1000 (white marks) mg/dm3. Other initial conditions are the same: initial concentrations of NO3 and microorganism (Azoarcus tolulyticus) were 50 mmol/dm3and 1000 mg/dm3, respectively. Lines are shown to help identify the general trends shown by the data.

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