Journal article
Modeling nonlinearly transient zero-order bioreduction and transport of Cr(VI) in groundwater
Environmental modeling & assessment, Vol.10(4), pp.315-321
12/2005
Handle:
https://hdl.handle.net/2376/106430
Abstract
Cr(VI) contamination of soil and groundwater is considered a major environmental concern. Bioreduction of Cr(VI) to Cr(III) can be considered a potentially effective technology in remediating Cr(VI) contaminated sites. Shewanella oneidensis MR-1 (MR-1) is one of the bacteria capable of reducing Cr(VI) to Cr(III) under anaerobic conditions. The kinetics of Cr(VI) reduction by MR-1 is defined by the dual-enzyme kinetic model which is nonlinear, transient, and zero-order. Existing transport models are not designed to simulate such reaction kinetics. The objective of this paper is to present a Petrov–Galerkin finite element model (PGFEM) to simulate transport and bioreduction of Cr(VI), by MR-1, in groundwater. The model developed is unconditionally stable and provides oscillation free accurate results for a wide range of Peclet number (Pn) and Courant number (Cn).
Metrics
13 Record Views
Details
- Title
- Modeling nonlinearly transient zero-order bioreduction and transport of Cr(VI) in groundwater
- Creators
- Akram Hossain - Civil and Environmental Engineering Washington State University Richland WA 99354 USA
- Publication Details
- Environmental modeling & assessment, Vol.10(4), pp.315-321
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Springer Netherlands; Dordrecht
- Identifiers
- 99900546852401842
- Language
- English
- Resource Type
- Journal article