Particle Deposition and Aggregation

Preface Part I: Theoretical Analysis of Deposition and Aggregation Phenomena 1 Introduction 2 Electrical Properties of Interfaces 2.1 Introduction 2.2 The electrical double layer 2.3 Electrokinetic phenomena Bibliography References 3 Surface Interaction Potentials 3.1 Introduction 3.2 Double layer interaction between macroscopic bodies 3.3 Van der Waals interaction 3.4 Non-DLVO forces 3.5 DLVO description of colloidal stability Bibliography References 4 Colloidal Hydrodynamics and Transport 4.1 Basic concepts in fluid and particle dynamics 4.2 Brownian motion and diffusion 4.3 Motion of a single sphere 4.4 Relative motion of two spheres 4.5 Concentration dependence of diffusion coefficients 4.6 Quantitative description of deposition phenomena Bibliography References Part II: Modeling and Simulation 5 Modeling of Particle Deposition onto Ideal Collectors 5.1 Rotating disc system 5.2 Stagnation-point flow 5.3 Parallel-plate channel 5.4 Spherical collector 5.5 Interaction-force boundary-layer approximation 5.6 Trajectory analysis 5.7 Representative simulations of particle deposition Bibliography References 6 Modeling of Aggregation Processes 6.1 Collisions and aggregation: the Smoluchowski approach 6.2 Collision mechanisms 6.3 Collision efficiencies 6.4 Form of aggregates 6.5 Aggregate strength and break up 6.6 Aggregate size 6.7 Flocculation by polymers Bibliography References 7 Selection of a Simulation Method 7.1 Overview of simulation protocol 7.2 Useful concepts in statistical mechanics 7.3 Monte Carlo methods 7.4 Molecular dynamics methods 7.5 Brownian dynamics methods Bibliography References 8 Implementation of Computer Simulations 8.1 Pair potential models 8.2 Periodic boundary conditions 8.3 Generating random numbers 8.4 Example: implementation of Metropolis MC simulation 8.5 Computer hardware 8.6 Visualization of simulation results 8.7 Appendices Bibliography References Part III: Experimental Methods and Model Validation Techniques 9 Experimental Techniques For Aggregation Studies 9.1 General: choice of technique 9.3 Light-scattering methods 9.4 Other optical methods 9.5 Aggregate properties Bibliography References 10 Experimental Techniques in Particle Deposition Kinetics 10.1 System requirements 10.2 Particle counting methods 10.3 Model deposition systems 10.4 Determination of experimental collision efficiencies Bibliography References 11 Theoretical Predictions Compared to Experimental Observations in Particle Deposition Kinetics 11.1 Deposition with repulsive double layers 11.2 Deposition in the presence of attractive double layers 11.3 Possible explanations for observed discrepancies in unfavorable deposition 11.4 A Semi-empirical approach for predicting collision efficiencies Bibliography References Part IV: Applications and Limitations of Predictive Modeling 12 Performance Of Packed Bed-Filters 12.1 Particle removal mechanisms 12.2 Modeling of particle removal in granular filtration 12.3 Predictions of filter performance Bibliography References 13 Transport of Colloidal Materials in Ground Water 13.1 Transport of viruses in soils and ground water 13.2 Transport of colloids and associated pollutants in ground water 13.3 Colloid travel distances in porous media Bibliography References 14 Advanced Simulation of Porous Media and Filtration Processes 14.1 Classification of filtration processes and models 14.2 Random line network model 14.3 Poisson point-line model 14.4 Tessellation models 14.5 Random packing of spheres References 15 Application of Simulation Techniques to Colloidal Dispersion Systems 15.1 MC simulation of triplet formation 15.2 MC simulation of magnetic flocculation 15.3 BD simulation of colloidal aggregation 15.4 BD simulation of colloidal deposition 15.5 Simulation of colloids under shear 15.6 Stokesian dynamics simulations 15.7 Conclusions References Author Index Subject Index