Open Access
Exploring the reciprocal role of hydrodynamic forcing and microbial colonization to induce bed sediment patchiness in biostabilization
Sabine Ulrike Gerbersdorf,Alan Cuthbertson,Maurizio Righetti,Heather Haynes,Daniel R. Parsons,Holger Schmidt,Moritz Thom,Stuart J. McLelland +7 more
- pp 1-10
TLDR
In this article, the authors investigated feedback mechanisms in the complex flow-sediment-ecology tripartite relationship arising from the interactions between hydrodynamics, sediment transport and segregation, and microbial colonization and bed stabilization.Abstract:
The experimental project presented herein investigated feedback mechanisms in the complex flow-sediment-ecology tripartite relationship arising from the interactions between hydrodynamics, sediment transport and segregation, and microbial colonization and bed stabilization. The experiment was conducted in a groyne field constructed in the Total Environment Simulator located at “The Deep” facility at the University of Hull. Detailed measurements of flow hydrodynamics in the main channel and groyne embayments were obtained using acoustic doppler velocimeter (ADV) probes, while the redistribution and segregation of bed sediments were measured using an array of ultrasonic range sensors (URS), coupled with detailed laser bed scans and high-resolution photographic images. In terms of investigating biogrowth colonization and stabilization of these segregated sediments, a MagPI (Magnetic Particle Induction) device was used to measure biofilm adhesiveness at various bed locations and at various stages during the growth phase. Preliminary results from this study are presented herein.read more
Citations
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Turbulence in Open-Channel Flows
TL;DR: A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river, can be found in this article, where the statistical theory of turbulence and coherent structures in open channel flows and boundary layers are discussed.
References
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Profiling of complex microbial populations by denaturing gradient gel electrophoresis analysis of polymerase chain reaction-amplified genes coding for 16S rRNA
TL;DR: Analysis of the genomic DNA from a bacterial biofilm grown under aerobic conditions suggests that sulfate-reducing bacteria, despite their anaerobicity, were present in this environment.
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TL;DR: The functions, properties and constituents of the EPS matrix that make biofilms the most successful forms of life on earth are described.
Book
Turbulence in open-channel flows
TL;DR: A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river, can be found in this paper, where the statistical theory of turbulence and coherent structures in open channel flows and boundary layers are discussed.
Book
Loose boundary hydraulics
TL;DR: Sediments and fluid properties Threshold of particle movement Sand transport by air Geometry of fluvial channels Resistance to flow Sediment transport Stable channel design Erosion and deposition Cohesive sediments Coastal zone Transport in pipelines Index as discussed by the authors
Book ChapterDOI
Biofilms and Microbial Fouling
TL;DR: This chapter presents a framework for understanding the process of biofilm development on a surface and the consequences of the accumulation on the environment in terms of selected fundamental rate processes and environmental parameters influencing their rate and extent.