WHAT IS THE FEEDBACK OF SEWAGE MICROORGANISMS TO NANOSTRUCTURES?

1 SVOBODOVÁ Lucie
Co-authors:
1,2 ROSICKÁ Petra 1 COUFALOVÁ Adéla 1 JANOUŠEK Tomáš 2 SVOBODA Přemysl 3 LEDERER Tomáš 4 NOVÁK Libor
Institutions:
1 Institute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, Studentská 2, 461 17 Liberec, Czech Republic, EU; e-mails: lucie.svobodova@tul.cz; totka.bakalova@tul.cz
2 Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Studentská 2, 461 17 Liberec 1, Czech Republic
3 Aquatest a.s., Geologická 988, Praha, Czech Republic
4 Aqua-Contact Praha, v.o.s, Mařákova 8, Praha 6, Czech Republic
Conference:
7th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 14th - 16th 2015
Proceedings:
Proceedings 7th International Conference on Nanomaterials - Research & Application
Pages:
542-547
ISBN:
978-80-87294-59-8
ISSN:
2694-930X
Published:
11th January 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
28 views / 1 download
Abstract

The growth in the application of nanomaterials (of any structure in any use) leads to increasing concentrations in the environment. These nanomaterials may also enter into wastewater treatment plants and interact with activated sludge, so at least partial knowledge of the behaviour of nanoparticles in the activated sludge is essential. This paper deals with the feedback of sewage microorganisms to nanostructures (nanoparticles or nanofibers). The main task was to observe the impact of nanostructures on the microorganisms based on microscopy access and image analysis procedures. The examination included changes in bacterial morphological properties (size and roughness), and the viability of the microorganisms. The experiments demonstrated an increase in the adhesion of the microorganisms to the nanofibers during the first few hours, a significant influence of the microorganism’s viability in the presence of nanoparticles (reduced by up to 99 %); and a changeover of the bacterial morphological properties (dispersed into floc-forming clusters or vice versa) of the nanofibers and nanoparticles.

Keywords: nanoparticles; nanofibers; sewage microorganism; wastewater treatment plant; image analysis.
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