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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/104

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contributor.authorSen, T K-
contributor.authorDas, D-
contributor.authorKhilar, K C-
contributor.authorSuraishkumar, G K-
identifier.citationColloids and Surfaces A: Physicochemical and Engineering Aspects, Vol 260, Iss 1-3, P 53-62en
descriptionCopyright for this article belongs to Elsevier Science Ltd. Alternative Link: http://dx.doi.org/10.1016/j.colsurfa.2005.02.033en
description.abstractTransport of bacteria is an important aspect from scientific, industrial and environmental point of view. In this work, a one-dimensional mathematical model based on linear equilibrium adsorption of bacteria has been developed to predict bacterial transport through porous media. This model is more realistic than existing models because of its coupling both physicochemical and biological phenomena. Two important biological phenomena, the growth and decay of bacterial cells and chemotactic/chemotaxis of bacteria along with physicochemical properties have been adequately incorporated which are quite new aspects in our model. In agreement with experimental study by [D.K. Powelson, R.J. Simpson, C.P. Gerba, J. Environ. Qual. 19 (1990) 396], model simulations indicated that enhancement of breakthrough occurs due to increase in flow velocity, cell concentration, substrate concentration, respectively. It has also been found that chemo tactic has a significant effect on bacterial transport, especially under conditions of considerable substrate gradient and at low pore velocity. The importance of threshold concentration of captured cells (σ0) on bacterial transport has also been identified which is also a new aspect in our model.en
format.extent205641 bytes-
subjectTransport modelen
subjectPorous mediaen
titleBacterial transport in porous media: New aspects of the mathematical modelen
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