Accumulation of sewer grits

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Table of contents

Part I State of the art & dataset presentation
Chapter 1 State of the art
1. Pollution of Urban Wet Weather Discharges (UWWD)
2. Origin of pollution in Urban Wet Weather Discharges
3. Sewer deposits
3.1. Composition and Characteristics
3.1.1. Sewer grits
3.1.2. Biofilms
3.1.3. Organic near bed sediment
3.1.3.1. Type C deposit
3.1.3.2. Near Bed Solids
3.1.3.3. Organic layer
3.1.3.4. Fluid sediment
3.1.4. Comparison of pollutants’ load in eroded particles with those of different sewer sediments
3.2. Dynamics of sewer sediments
3.2.1. Accumulation of sewer grits
3.2.2. Erosion of organic near bed materials
3.2.2.1. Investigations in real sewer flow conditions (dry/wet)
3.2.2.2. Investigations in controlled flushing experiments
4. Modelling sewer processes
4.1. Modelling in-sewer sediment erosion
4.2. Modelling suspended solid transfer in sewer system
5. Modelling hydraulics in sewer systems
System Using an Adapted Hydrodynamic Model
5.1. Simple hydraulic models
5.2. Complex hydraulic models
5.3. Numerical schemes of Shallow Water Equations
5.3.1. Flux term discretization
5.3.2. Source term discretization
6. References
Chapter 2 Presentation of experimental and modelling investigations of the Marais site
1. Choice of the study site
2. Site description
2.1. Surface description
2.2. Sewer system description
3. Database presentation
3.1. Precipitation data and rainfall events characteristics
3.2. Dry weather flow data
3.2.1. Discharge flow rate
3.2.2. TSS concentration
3.3. Wet weather flow data
3.3.1. Runoff flow
3.3.2. Sewer outflow
3.4. In-sewer deposits characteristics
3.4.1. Type of deposits
3.4.2. Localization and topography of sewer deposits
3.4.3. Pollutants’ content
3.4.3.1. Experimental results of the dynamics of the organic layer
3.4.3.1.1. Controlled flushing experiments
3.4.3.1.2. Observational system
3.4.3.2. Results of modelling the dynamics of the organic layer
4. References
Part II The interest of a distributed hydrodynamic model specifically adapted to collectors of highly varying bed slope and cross-sections
Chapter 3 A Simple Finite Volume Method for 1D Naturally Balanced Shallow Water Equations
1. Abstract
Chapter 4 Sensitivity of Hydrodynamic Models and Solid Transport to the Description of Silted Collectors
1. Abstract
Part III In-sewer suspended solids sources and solid transport modelling
Chapter 5 Do storm events samples bias the comparison between sewers deposits contribution?
1. Abstract
Chapter 6 Development and Benchmarking of Solid Transport Models with Different Scenarios for In-sewer Sources of Suspended Solids
1. Introduction
2. Conclusion
General Conclusion and Perspectives