Drinking water biofilm cohesiveness changes under chlorination or hydrodynamic stress

Mathieu, Laurence; Bertrand, Isabelle; Abe, Yumiko; Ángel, Edith; Block, J. C.; Skali-Lami, Salaheddine; Francius, Grégory

doi:10.1016/j.watres.2014.01.054

Cited by 73 publications

(48 citation statements)

References 64 publications

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“…Moreover, our unpublished study also found that the EPS content of biofilms cultured under a P level of 0.01 mg/L was significantly higher than that of cultures under a P level of 0.6 mg/L. What's more, the presence of EPS would contribute to strengthen the cohesion of the biofilms so as to better resist hydrodynamic shear stress (Mathieu et al, 2014). Therefore, biofilms cultured Another reason for this phenomenon might be attributed to respiration.…”

Section: Discussionmentioning

confidence: 89%

Influence of phosphorus availability on the community structure and physiology of cultured biofilms

Wang

Qin

et al. 2016

Journal of Environmental Sciences

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Section: Discussionmentioning

confidence: 89%

Influence of phosphorus availability on the community structure and physiology of cultured biofilms

Wang

Qin

et al. 2016

Journal of Environmental Sciences

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“…Microbial activity on AACCC extends the adsorption capacity via in situ regeneration of adsorption sites through the biodegradation of previously adsorbed organic matter [20]. The bacteria outside and inside AACCC are conducive to reducing the impact of hydrodynamic shear stress on biofilm cell density and holding stable biodegradation ability [21]. Based on previous research, AACCC is suitable for filtration media of biofilter [19].…”

Section: Characterizing Aacccmentioning

confidence: 99%

Using an Attapulgite-Activated Carbon Composite Ceramisite Biofilter to Remove Dibutyl Phthalate from Source Water

Wang¹,

Wang²,

Chen³

et al. 2018

Pol. J. Environ. Stud.

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“…During the storage of water in the containers, it is well known that some microorganisms can get attached to the surface walls of the containers and form a biofilm (Hambsch et al, 2013). Attached bacteria can detach from the surface walls and this leads to continuous recontamination of the water (Mathieu et al, 2014). Besides, there is a problem of bacterial regrowth which is related to the increase in bacteria contained in the water (Ikonen et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Identification and tracking of microorganisms from the biofilms of container walls used for water storage: Case of rural communities in Burkina Faso

Seyram¹,

Franck²,

Mariam³

et al. 2016

Afr. J. Microbiol. Res.

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Safe drinking water is an important necessity for humans. In rural communities of Burkina Faso, many households use local containers for storing drinking water. During water storage, some microorganisms get attached to the surface walls of the containers to form a biofilm which can deteriorate drinking water quality over time. This study aimed at evaluating the attachment of indicator microorganisms to containers walls during drinking water storage. Raw drinking water from wells and drilling were stored in three different containers: earthenware jar, polyethylene and galvanized steel for a period of 48 h. During the experiment, attached total coliform, Escherichia coli, Enterococci, Clostridium perfringens, somatic and F-specific coliphages were measured according to standard methods. Bacteria were enumerated by using conventional membrane filtration procedure and coliphages were done using double layer plaque assays. The results showed that, the adhesion of indicator microorganisms on the surface of earthenware jar, polyethylene and galvanized steel containers was detected and this adhesion was correlated to different parameters, such as temperature, pH, turbidity, concentration of organic nutrients and indigenous microorganism communities. The survival and regrowth of indicator microorganisms on the container walls was due to the quality of raw drinking water before storage. Clay-based material was subjected to more attachment of indicator microorganisms than that of plastic-based polyethylene and metal-based galvanized steel. The lowest yield of biofilm formation by indicator microorganisms was Clostridium perfringens (<1 cfu.cm ). However, the persistence of indicator microorganisms on container walls during drinking water storage deteriorates the water quality more. To meet national guidelines of drinking water quality, it is important to conduct simple water treatment regime such as chlorination before and during water storage in containers.

show abstract

Drinking water biofilm cohesiveness changes under chlorination or hydrodynamic stress

Cited by 73 publications

References 64 publications

Influence of phosphorus availability on the community structure and physiology of cultured biofilms

Influence of phosphorus availability on the community structure and physiology of cultured biofilms

Using an Attapulgite-Activated Carbon Composite Ceramisite Biofilter to Remove Dibutyl Phthalate from Source Water

Identification and tracking of microorganisms from the biofilms of container walls used for water storage: Case of rural communities in Burkina Faso

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