Environmental Transport Processes

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  • Edition: 2nd
  • Format: Hardcover
  • Copyright: 2012-03-13
  • Publisher: Wiley

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Developed as a reference for transport phenomena courses, this completely revised second edition of Environmental Transport Processes provides a readable and approachable treatment of environmental systems. The text features a unique combination of material from different fields (mass transport, kinetics, wastewater treatment, unit processes) and includes pertinent literature not available in any other texts. Rich with examples and problems to help reinforce students' learning, the updated edition addresses new and emerging topics, such as non-aqueous phase liquids (NAPLs), the subject of aggregates, and biofilm kinetic models merged with mass transport concepts.

Author Biography

Burce E. Logan is the Stan and Flora Kappe Professor of Environmental Engineering, Department of Civil and Environmental Engineering at Penn State. He is Director of the Engineering Energy Environmental Institute and the Hydrogen Energy (H2E) Center. Dr. Logan has won several awards for his research and articles and has authored Microbial Fuel Cells, also from Wiley.

Table of Contents

Prefacep. xi
Introdctionp. 1
Backgroundp. l
Notation for chemical transportp. 2
Simplifications for environmental systemsp. 5
Review of mass balancesp. 11
Equilibrium Calculationsp. 18
Introductionp. 18
Thermodynamic state functionsp. 20
Chemical potentialsp. 21
Gibbs free energy and equilibrium constantsp. 23
Distribution of chemicals based on fugacitiesp. 25
Diffusive Transportp. 43
Introductionp. 43
Diffusionp. 43
Calculation of molecular diffusion coefficientsp. 45
Effective diffusion coefficients in porous mediap. 53
Experimental determination of diffusivities and molecular size spectrap. 59
The Constitutive Transport Equationp. 79
Introductionp. 79
Derivation of the general transport equationp. 80
Special forms of the general transport equationp. 81
Similarity of mass, momentum, and heat dispersion lawsp. 84
Transport relative to moving coordinate systemsp. 86
Simplified forms of the constitutive transport equationp. 89
The constitutive transport equation in cylindrical and spherical coordinatesp. 91
Concertration Profiles and Chemical Fluxesp. 95
Introductionp. 95
The three theories of mass transportp. 95
Mass transport in radial and cylindrical coordinates using shell balancesp. 112
Mass Transport Correlations: Form Theory to Empiricismp. 120
Definition of a mass transport coefficientp. 120
The three theoriesp. 121
Multiple resistances during interphase mass transportp. 125
Correlations for mass transport coefficientsp. 132
Transport to spheresp. 135
Transport in Sheared Reactorsp. 140
Introductionp. 140
Fluid shear and turbulencep. 141
Mass transport in steady sheared fluidsp. 145
Mass transport in turbulent sheared fluidsp. 148
Shear rates in mixed reactorsp. 149
Chemical transport in bubbled reactorsp. 158
Suspended Unattached and Aggregated Microorganismsp. 167
Introductionp. 167
Chemical transport to cells at restp. 167
Effect of fluid motion on microorganismsp. 170
Transport to microbial aggregatesp. 175
Effectiveness factors for mass transportp. 184
Relative uptake factors for mass transportp. 187
Biofilmsp. 194
Introductionp. 194
Transport in the fluid layer above a biofilmp. 194
Biofilm kineticsp. 198
Modeling completely mixed biofilm reactors: rotating biological contactorsp. 210
Modeling plug flow biofilm reactors: packed bedsp. 213
Modeling wetted wall biofilm reactors: trickling filtersp. 215
Electrogenic biofilmsp. 225
Disperspnp. 232
Introductionp. 232
Averaging properties to derive dispersion coefficients in turbulent fluidsp. 235
Dispersion in nonbounded turbulent sheared fluidsp. 239
Longitudinal dispersion coefficients for defined systemsp. 244
Dispersion in porous mediap. 253
Rivers, Lakes, and Oceansp. 264
Introductionp. 264
Chemical transport in riversp. 265
Mixing in lakesp. 273
Mixing in estuariesp. 277
Miiing in the oceanp. 279
Transport of chemicals present as pure phasesp. 280
Chemical Transport in Porous Mediap. 292
Introductionp. 292
Porous media hydraulicsp. 292
Contaminant transport of conservative tracersp. 295
Transport with reactionp. 298
Transport with chemical adsorptionp. 299
Formation of ganglia of nonaqueous phase-liquidsp. 306
Mass transport calculations of chemical fluxes from NAPL gangliap. 315
Particles and Fractalsp. 331
Introductionp. 331
Particle size spectrap. 332
Solid particles and fractal aggregate geometriesp. 336
Measuring particle size distributionsp. 351
Calculating fractal dimensions from particle size distributionsp. 353
Coagulation in Natural and Engineered Systemsp. 362
Introductionp. 362
The general coagulation equations: integral and summation formsp. 363
Factors affecting the stability of aquasolsp. 364
Coagulation kinetics: collision kernels for spheresp. 374
Fractal coagulation modelsp. 388
Coagulation in the oceanp. 397
Praticle Transport in Porous Mediap. 408
Introductionp. 408
A macroscopic particle transport equationp. 409
Clean-bed filtration theoryp. 411
Discrete particle size distributions prepared by filtrationp. 426
The dimensionless collision numberp. 432
Pressure drops in clean-bed filtersp. 434
Particle accumulation in filtersp. 435
Particle transport in aquifersp. 437
Appendiciesp. 445
Notationp. 445
Transport equationsp. 452
Chemical propertiesp. 453
Solutions of differential equationsp. 458
Referencesp. 465
Indexp. 475
Table of Contents provided by Ingram. All Rights Reserved.

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