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- W1974367035 abstract "Soil column experiments were conducted to study bacterial growth and transport in porous media under denitrifying conditions. The study used a denitrifying microbial consortium isolated from aquifer sediments sampled at the U.S. Department of Energy's Hanford site. One-dimensional, packed-column transport studies were conducted under two substrate loading conditions. A detailed numerical model was developed to predict the measured effluent cell and substrate concentration profiles. First-order attachment and detachment models described the interphase exchange processes between suspended and attached biomass. Insignificantly different detachment coefficient values of 0.32 and 0.43 day−1, respectively, were estimated for the high and low nitrate loading conditions (48 and 5 mg l−1 NO3, respectively). Comparison of these values with those calculated from published data for aerobically growing organisms shows that the denitrifying consortium had lower detachment rate coefficients. This suggests that, similar to detachment rates in reactor-grown biofilms, detachment in porous media may increase with microbial growth rate. However, available literature data are not sufficient to confirm a specific analytical model for predicting this growth dependence." @default.
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- W1974367035 date "1997-01-01" @default.
- W1974367035 modified "2023-10-16" @default.
- W1974367035 title "Microbial growth and transport in porous media under denitrification conditions: experiments and simulations" @default.
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- W1974367035 doi "https://doi.org/10.1016/s0169-7722(96)00014-9" @default.
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