Chemodynamics and Environmental Modeling An Introduction [Paperback]

Partitioning of chemicals in the environment and its modeling is becoming an important field in environmental science and engineering. This book enables students, researchers, and interested laymen to enter the field of environmental modeling in a fast and effective way. The book contains modeling software (CemoS V 1.10), data sets and the CemoS handbook. Each chapter contains examples and exercises.Partitioning of chemicals in the environment and its modeling is becoming an important field in environmental science and engineering. This book enables students, researchers, and interested laymen to enter the field of environmental modeling in a fast and effective way. The book contains modeling software (CemoS V 1.10), data sets and the CemoS handbook. Each chapter contains examples and exercises.1: Textbook.- 1 Why Model Chemical Exposure?.- 1.1 Introduction.- 1.2 Good Modeling Practice.- 2 Compartment Systems.- 2.1 Compartments.- 2.2 Mass Balance / Linear Differential Equations.- 2.3 Differential Equation Systems.- 2.4 Numerical Solution Methods for Ordinary Differential Equations.- 3 Transport and Transformation Processes.- 3.1 Diffusion.- 3.2 Dispersion.- 3.3 Advection (Convection).- 3.4 Combination of Diffusion, Dispersion and Advection.- 3.5 Reaction, Metabolism and Elimination.- 3.6 Combination of Dispersion, Advection and Elimination.- 3.7 Numerical Solution of the Dispersion-Advection Equation.- 4 Partitioning of Chemicals in the Environment.- 4.1 Division into Phases.- 4.2 The Partition Coefficient.- 4.3 Partition Coefficients for Dissociating Chemicals.- 4.4 Combination of Partition Coefficients.- 4.5 About Equilibrium.- 5 Multi-Media Models.- 5.1 Introduction.- 5.2 Partition Models for Multi-Compartment Systems.- 5.3 Mackay Models.- 5.4 What Do These Models Tell Us?.- 5.5 Regional Exposure Model.- 6 Contaminants in Surface Water.- 6.1 Introduction.- 6.2 Analytical Steady-State Surface Water Model WATER.- 6.3 Dynamic Numerical TOXRIV Model.- 6.4 Two-DimenlÃJ