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Removal of nitrates from brine using Haloferax Mediterranei archeon

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The aim of the study was to optimize a saline brine denitrification by halophilic microorganisms Haloferax mediterranei. To define the optimum parameters of the process, the Latin square method was used (Statistica 6.0). The highest specific nitrate reduction rate was observed at a temperature of 37 °C and pH 7.0. There was no significant effect of NaCl on nitrate ion reduction at the concentration range from 2.5 to 3.5 M. During brine denitrification in a batch bioreactor the rates of specific nitrate reduction and nitrate reduction reached 100.5 mg N-NO3 - per 1 gram of dry mass during 24 h and 135 mg N-NO3/dm3 . day, respectively.
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bibliogr. 16 poz.
  • Department of Biotechnology and Food Biotechnology, Poznań University of Life Sciences, Wojska Polskiego 48, 60-627 Poznań,
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