Environmental Science and Pollution Research

, Volume 25, Issue 23, pp 22420–22428 | Cite as

The interface interaction behavior between E. coli and two kinds of fibrous minerals

  • Qunwei DaiEmail author
  • Linbao Han
  • Jianjun Deng
  • Yulian Zhao
  • Zheng Dang
  • Daoyong Tan
  • Faqin Dong
Interface Effect of Ultrafine Mineral Particles and Microorganisms


In the present, studies of interaction between human normal flora and fibrous mineral are still lacking. Batch experiments were performed to deal with the interaction of Escherichia coli and two fibrous minerals (brucite and palygorskite), and the interface and liquid phase characteristics in the short-term interaction processes were discussed. The bacterial concentrations, the remnant glucose (GLU), pyruvic acid, and the activity of β-galactosidase and six elements were measured, and the results show that the promoting effect of brucite on the growth of E. coli was more significant than that of palygorskite. FTIR and XRD analysis results also confirmed E. coli has obviously dissolved on brucite and damage effect on palygorskite silicon structure. SEM results show that the interfacial contact degree between E. coli cells and brucite fibers was higher than that of palygorskite. These may be due to the zeta potential difference between E. coli and palygorskite was 14.57–22.37 mV, while it of brucite was 44.04–64.24 mV. The elements dissolving of two fibrous minerals not only increased regularly to liquid EC but also had a good buffer effect to the decrease of liquid pH. Studies of short-term interaction between E. coli and brucite and palygorskite can help to understand the effect of fibrous minerals on microeubiosis of human normal flora and the contribution of microbial behaviors on the fibrous minerals weathering in the natural environment.


Fibrous mineral Brucite Palygorskite E. coli Interaction 


Funding information

This work was financially supported by the National Natural Science Foundation of China (Nos. 41130746, 41472046) and the Natural Science Foundation of Southwest University of Science and Technology (12ZX7121).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Key Laboratory of Solid Waste Treatment and Resource Recycle, School of Environment and ResourcesSouthwest University of Science and TechnologyMianyangChina
  2. 2.The Fourth People’s Hospital of Mianyang CityMianyangChina

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