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Ben Saad M.,Water Researches and Technologies Center Borj Cedria Technopark | Ben Said M.,Water Researches and Technologies Center Borj Cedria Technopark | Bousselmi L.,Water Researches and Technologies Center Borj Cedria Technopark | Ghrabi A.,Water Researches and Technologies Center Borj Cedria Technopark
Desalination and Water Treatment | Year: 2016

The main goal of the present study was to enhance the rhizobacterium potential in horizontal subsurface flow constructed wetland system planted by Phragmites australis using biotechnology. The bioinoculation of denitrifier promoting rhizobacteria fluorescent Pseudomonas spp. has been used to confer higher rhizosphere competence by environmentally friendly biological approaches. In order to study the behaviour or the denitrifying potential of the inoculated bacteria ex situ and in situ, the models of Chick–Watson and Series-Event were used with modifications. The comparison of kinetic parameters: (k): the denitrifying coefficient (h−1) and the denitrifying rate at the first contact with a determined concentration of nitrate (A) for different bioassays has shown that the application of the bioinoculation increases remarkably the efficiency of the water treatment system for the reduction of nitrates even by an individual bioinoculated bacterium. © 2016 Balaban Desalination Publications. All rights reserved.

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