Polypirrole-based regenerated sorbents for the purification of aqueous media from micropathogens
Abstract
In continuation of a series of studies on a new generation of microbathogen sorbents based on electrically conductive polymers: polyaniline and polypyrrole, the possibility of regeneration and reuse of polypyrrole for water purification through the sorption of bacteria and viruses from aqueous media was investigated. For example, the binding of polypyrrole and polypyrrole modified with silver nanoparticles of the pandemic
influenza virus strain A/South Carolina / 02/2010 (H1N1) pdm09 and epidemiologically and pathogenetically significant bacteria: Staphylococcus aureus (Gram +) and Shigella flexneri (Gram -) shown: During primary sorption, sorbents almost completely neutralize concentrated virus solutions (GAE 512) and epidemically dangerous solutions of bacteria with CFU 2 * 105.
• Sorbent regeneration consists of a short-term warming up in an aquatic environment with subsequent
exposure to ultrasound.
• Secondary sorption of micropathogens leads to almost complete removal of Staphylococcus, and a significant decrease in the concentration of Shigella and viruses The results indicate the possibility of repeated, and possibly repeated use of sorbents. The advantages of these sorbents in their use for the purification of aqueous media from biological contaminants are: 1. theability to effectively sorb a wide range of micropathogens: both bacteria and viruses; 2. suppression of the infectious activity of associated micropathogens, i.e. complete infectious safety of the sorbent + pathogen complexes; 3. possibility of regeneration and repeated use of the sorbent. At the same time, the sorbents
themselves are non-toxic and relatively cheap.
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References
2. Pandey S.S., Gerard M., Sharma A.L., Malthora B.D., Journal of Applied Polymer Science, 2000, Vol. 75, pp. 149-155.
3. Lundin V., Herland A., Berggren M. et al., www.plosone.org April, 2011, Vol. 6, Issue 4, e18624.
4. Sapurina I., Lia Y., Alekseeva E. et al., Polymer, 2017, Vol. 113, pp. 247-258. https://doi.org/10.1016/j.polymer.2017.02.064.
5. Benabderrahmane S., Bousalem S., Mangeney C., et al., Polymer, 2005, Vol. 46, pp. 1339-1346.
6. Smith A.B. and Knoweles C.J., J. Appl. Polym. Sci,. 1991, Vol. 43, pp. 399-403.
7. Azioune A., Chemini M.M., Miksa B. et al., Langmuir. 2002, Vol. 18, pp. 1150.
8. Saoudi B., Jammul N., Chehimi. M.M. et al., Spectroscopy, 2004, Vol. 18, pp. 512-525.
9. Singh R., Chandra S., Singh H., Narula A.K., Broor S. Conducting polymer membrane and a process for the preparation of the same membrane. Patent USA. Publication number US6156202 A. 1999.
https://www.google.com/patents/US6156202.
10. Garina E.O., Ivanova V.T ., Nosic N.N. , Kondrashina N.G et al., Nanotekhnologiya: razrabotka i primenenie. XX1 vek, 2016, Vol. 8, No 2, pp. 3-13.
11. Ivanova V.T., Garina E.O., Nikolaeva T.N., Suetina I.A. et al., Voda: khimiya i ekologiya, 2016, No 10, pp.71-81.
12. Ivanova V.T., Garina E.O., Sapurina I.Yu., Stejskal J. et al., Sorbtsionnye i khromatograficheskie protsessy, 2017, Vol. 17, No 4, pp. 592-600.
13. Netrusov A.I. Cotova I.V., Obshchaya mikrobiologiya: ITS «Akademiya», 2007, pp. 25-27.
14. Zinin-Bermes N.N., Shishlyannikova N.Y., Kovtun V.P., Meditsina v Kuzbasse, 2004, No 3, pp. 24-26.
