Spectra induce polarization data of bacteria in soil

Real-time monitoring of microbial activity in porous media is still facing
critical challenges because conventional analytical procedures are
intrusive. Induced polarization (IP) has shown promises as a non-intrusive
monitoring approach of such process. However, there is still a lack of
quantitative analysis of soil column experiments to show how IP-based
parameters can be related to the density of bacteria. The
evolution of bacteria density and induced polarization is here performed
in a soil-packed column experiment using Pseudomonas Aeruginosa O1 (PAO1).
A quantitative relationship between the quadrature conductivity and the
bacteria density is established and then used to assess bacteria growth
and decay and infer the Monod kinetic parameters. The Monod kinetic
parameters inferred from the column experiments mimicking field conditions
are different from those obtained from a batch experiment.