Resumen de Polymer biomass carrier modification in electric and magnetic fields
M. V. Korotkiy, L. S. Pinchuk, A. V. Makarevich, A. G. Kravtsov, A. S. Samsonova, Z. M. Aleschenkova, N. F. Syomochkina, Y. Lee
Results of experiments to immobilize microorganisms on fibrous polymeric materials for further biodegradation of aromatic hydrocarbons have been presented. The fibrous carriers manufactured by melt-blowing technique are sources of stationary electric/magnetic fields. Structural (fiber diameter, pore size and distributions), electric and magnetic characteristics of the carriers have been determined. Stimulating effect of weak electric and magnetic fields generated by carriers composed of polymeric electrets (surface charge density σef= 0.7 – 7 nC cm–2) and magnetoplastics (magnetic induction Br= 0.2 – 1 mT) on adsorptive immobilization and microbial metabolism was established. Hypothesis of electric polarization of bacterial cells in the carrier induced field and electrophysical interaction of polarized cells with charged or magnetized fibers was postulated. High efficiency of air detoxification by removing toluene fumes with lab trickling biofilters equipped with novel carriers operating in continuous flow regime was achieved.
