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dc.contributor.authorMburu, N.
dc.contributor.authorRousseau, D. P.
dc.contributor.authorStein, Otto R.
dc.contributor.authorLens, Piet N. L.
dc.identifier.citationMburu N, Rousseau DP, Stein O, Lens PN, "Simulation of batch-operated experimental wetland mesocosms in AQUASIM biofilm reactor compartment," Journal of Environmental Management. February 15, 2014 134: 100–108en_US
dc.description.abstractIn this study, a mathematical biofilm reactor model based on the structure of the Constructed Wetland Model No.1 (CWM1) coupled to AQUASIM’s biofilm reactor compartment has been used to reproduce the sequence of transformation and degradation of organic matter, nitrogen and sulphur observed in a set of constructed wetland mesocosms and to elucidate the development over time of microbial species as well as the biofilm thickness of a multispecies bacterial biofilm in a subsurface constructed wetland. Experimental data from 16 wetland mesocosms operated under greenhouse conditions, planted with three different plant species (Typha latifolia, Carex rostrata, Schoenoplectus acutus) and an unplanted control were used in the calibration of this mechanistic model. Within the mesocosms, a thin (predominantly anaerobic) biofilm was simulated with an initial thickness of 49 mm (average) and in which no concentration gradients developed. The biofilm density and area, and the distribution of the microbial species within the biofilm were evaluated to be the most sensitive biofilm properties; while the substrate diffusion limitations were not significantly sensitive to influence the bulk volume concentrations. The simulated biofilm density ranging between 105,000 and 153,000 gCOD/m3 in the mesocosms was observed to vary with temperature, the presence as well as the species of macrophyte. The biofilm modeling was found to be a better tool than the suspended bacterial modeling approach to show the influence of the rhizosphere configuration on the performance of the constructed wetlands.en_US
dc.description.sponsorshipDutch Government for the financial support provided to undertake this research through the NUFFIC-NFP fellowship No. 320.24424 (2008e2012)en_US
dc.publisherJournal of Environmental Managementen_US
dc.titleSimulation of batch-operated experimental wetland mesocosms in AQUASIM biofilm reactor compartmenten_US
mus.citation.journaltitleJournal of Environmental Managementen_US
mus.identifier.categoryChemical & Material Sciencesen_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.collegeCollege of Education, Health & Human Developmenten_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentEnvironmental Engineering.en_US
mus.relation.departmentMicrobiology & Immunology.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US

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