Ben Saad, Marwa

Ben Saad, Myriam

Bousselmi, Latifa

Ghrabi, Ahmed

Morató Farreras, Jordi

Sanz Sáez, Isabel

Sánchez Martinez, Olga

Water Science & Technology

UPCommons. Portal del coneixement obert de la UPC

Enhancement of rhizocompetence in pathogenic bacteria removal of a constructed wetland system

9 pagesThe main goal of the present study was to enhance the rhizobacterium potential in a horizontal subsurface flow constructed wetland system planted with Phragmites australis, through environmentally friendly biological approaches. The bioinoculation of antagonist bacteria has been used to promote higher rhizosphere competence and improve pathogenic bacteria removal from wastewater. The experiment was performed both with single and sequential bioinoculation. The results showed that strain PFH1 played an active role in pathogenic bacteria removal, remarkably improving inactivation kinetics of the pathogenic tested bacterium Salmonella typhi in the plant rhizosphere. The single bioinoculation of selected bacteria into the rhizosphere of P. australis improved the kinetics of S. typhi inactivation by approximately 1 U-Log10 (N/N0) (N is the number of viable cultured bacteria at time t, N0 is the number of viable and cultivable bacteria at time t0) compared to the control. By a series of multi-bioinoculations, the enhancement of pathogenic bacteria reduction compared to the inhibition rate in the pilot-scale control was of 2 U-Log10(N/N0). These findings suggested that this strain represents a promising candidate to enhance water purification in constructed wetlandsPeer Reviewe

Ben Said, Myriam

Sanz-Sáez, Isabel

Sánchez, Olga

Morató, Jordi

Digital.CSIC

UPCommons

https://upcommons.upc.edu/bitstream/2117/131888/1/Enhancement%20of%20rizhocompetence.pdf

Enhancement of rhizocompetence in pathogenic bacteria removal of a constructed wetland system

Abstract

Similar works

Full text

Available Versions

UPCommons. Portal del coneixement obert de la UPC

Digital.CSIC

UPCommons