Dynamic assessment of the floc morphology, bacterial diversity and integron content of an activated sludge reactor processing hospital effluent

Thibault  Stalder; Mousaab  Alrhmoun; Jean-Noël  Louvet; Magali  Casellas; Corinne  Maftah; Claire  Carrion; Marie-Noëlle  Pons; Ole Pahl; Marie-Cécile  Ploy; Christophe  Dagot

doi:10.1021/es4008646

Dynamic assessment of the floc morphology, bacterial diversity and integron content of an activated sludge reactor processing hospital effluent

Thibault Stalder, Mousaab Alrhmoun, Jean-Noël Louvet, Magali Casellas, Corinne Maftah, Claire Carrion, Marie-Noëlle Pons, Ole Pahl, Marie-Cécile Ploy, Christophe Dagot

Civil Engineering and Environmental Management

Research output: Contribution to journal › Article

Abstract

The treatment of hospital effluents (HE) is a major concern, as they are suspected of disseminating drugs and antibiotic resistance determinants in the environment. In order to assess HE influence on wastewater treatment plant biomass, lab-scale conventional activated sludge systems (CAS) were continuously fed with real HE or urban effluent as a control. To gain insights into the main hurdles linked to HE treatment, we conducted a multiparameter study using classical physicochemical characterization, phase contrast and confocal laser scaning microscopy, and molecular biology (i.e. pyrosequencing) tools. HE caused erosion of floc structure and the production of extracellular polymeric substances attributed to the development of floc-forming bacteria.

Original language	English
Pages (from-to)	7909–7917
Number of pages	9
Journal	Environmental Science and Technology
Volume	47
Issue number	14
Early online date	21 Jun 2013
DOIs	https://doi.org/10.1021/es4008646
Publication status	Published - 2013

Keywords

hospital effluents
antibiotic resistance
bacterial diversity

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10.1021/es4008646

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Stalder, T., Alrhmoun, M., Louvet, J-N., Casellas, M., Maftah, C., Carrion, C., Pons, M-N., Pahl, O., Ploy, M-C., & Dagot, C. (2013). Dynamic assessment of the floc morphology, bacterial diversity and integron content of an activated sludge reactor processing hospital effluent. Environmental Science and Technology, 47(14), 7909–7917. https://doi.org/10.1021/es4008646

Stalder, Thibault ; Alrhmoun, Mousaab ; Louvet, Jean-Noël ; Casellas, Magali ; Maftah, Corinne ; Carrion, Claire ; Pons, Marie-Noëlle ; Pahl, Ole ; Ploy, Marie-Cécile ; Dagot, Christophe . / Dynamic assessment of the floc morphology, bacterial diversity and integron content of an activated sludge reactor processing hospital effluent. In: Environmental Science and Technology. 2013 ; Vol. 47, No. 14. pp. 7909–7917.

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abstract = "The treatment of hospital effluents (HE) is a major concern, as they are suspected of disseminating drugs and antibiotic resistance determinants in the environment. In order to assess HE influence on wastewater treatment plant biomass, lab-scale conventional activated sludge systems (CAS) were continuously fed with real HE or urban effluent as a control. To gain insights into the main hurdles linked to HE treatment, we conducted a multiparameter study using classical physicochemical characterization, phase contrast and confocal laser scaning microscopy, and molecular biology (i.e. pyrosequencing) tools. HE caused erosion of floc structure and the production of extracellular polymeric substances attributed to the development of floc-forming bacteria. ",

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Stalder, T, Alrhmoun, M, Louvet, J-N, Casellas, M, Maftah, C, Carrion, C, Pons, M-N, Pahl, O, Ploy, M-C & Dagot, C 2013, 'Dynamic assessment of the floc morphology, bacterial diversity and integron content of an activated sludge reactor processing hospital effluent', Environmental Science and Technology, vol. 47, no. 14, pp. 7909–7917. https://doi.org/10.1021/es4008646

Dynamic assessment of the floc morphology, bacterial diversity and integron content of an activated sludge reactor processing hospital effluent. / Stalder, Thibault ; Alrhmoun, Mousaab ; Louvet, Jean-Noël ; Casellas, Magali ; Maftah, Corinne ; Carrion, Claire ; Pons, Marie-Noëlle ; Pahl, Ole; Ploy, Marie-Cécile ; Dagot, Christophe .

In: Environmental Science and Technology, Vol. 47, No. 14, 2013, p. 7909–7917.

Research output: Contribution to journal › Article

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T1 - Dynamic assessment of the floc morphology, bacterial diversity and integron content of an activated sludge reactor processing hospital effluent

AU - Stalder, Thibault

AU - Alrhmoun, Mousaab

AU - Louvet, Jean-Noël

AU - Casellas, Magali

AU - Maftah, Corinne

AU - Carrion, Claire

AU - Pons, Marie-Noëlle

AU - Pahl, Ole

AU - Ploy, Marie-Cécile

AU - Dagot, Christophe

PY - 2013

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AB - The treatment of hospital effluents (HE) is a major concern, as they are suspected of disseminating drugs and antibiotic resistance determinants in the environment. In order to assess HE influence on wastewater treatment plant biomass, lab-scale conventional activated sludge systems (CAS) were continuously fed with real HE or urban effluent as a control. To gain insights into the main hurdles linked to HE treatment, we conducted a multiparameter study using classical physicochemical characterization, phase contrast and confocal laser scaning microscopy, and molecular biology (i.e. pyrosequencing) tools. HE caused erosion of floc structure and the production of extracellular polymeric substances attributed to the development of floc-forming bacteria.

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KW - antibiotic resistance

KW - bacterial diversity

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