Geochemical and Biogeochemical Reaction ModelingThis book provides a comprehensive overview of reaction processes in the Earth's crust and on its surface, both in the laboratory and in the field. A clear exposition of the underlying equations and calculation techniques is balanced by a large number of fully worked examples. The book uses The Geochemist's Workbench® modeling software, developed by the author and already installed at over 1000 universities and research facilities worldwide. Since publication of the first edition, the field of reaction modeling has continued to grow and find increasingly broad application. In particular, the description of microbial activity, surface chemistry, and redox chemistry within reaction models has become broader and more rigorous. These areas are covered in detail in this new edition, which was originally published in 2007. This text is written for graduate students and academic researchers in the fields of geochemistry, environmental engineering, contaminant hydrology, geomicrobiology, and numerical modeling. |
From inside the book
Results 1-5 of 75
Page ix
... Kinetics of dissolution and precipitation 231 16.1 Kinetic rate laws 232 16.2 From laboratory to application 236 16.3 Numerical solution 238 16.4 Example calculations 240 16.5 Modeling strategy 242 17 Redox kinetics 245 17.1 Rate laws ...
... Kinetics of dissolution and precipitation 231 16.1 Kinetic rate laws 232 16.2 From laboratory to application 236 16.3 Numerical solution 238 16.4 Example calculations 240 16.5 Modeling strategy 242 17 Redox kinetics 245 17.1 Rate laws ...
Page 1
... kinetic rate equations, manage injection wells, evaluate laboratory experiments, and study acid rain, among many examples. Teachers let their students use these models to learn about geochemistry by experiment and experience. Many ...
... kinetic rate equations, manage injection wells, evaluate laboratory experiments, and study acid rain, among many examples. Teachers let their students use these models to learn about geochemistry by experiment and experience. Many ...
Page 12
... kinetic rate laws , as discussed in Chapter 16 . The model calculates the actual rates of mass transfer at each step of the reaction progress from the rate constants , as measured in laboratory experiments , and the fluid's degree of ...
... kinetic rate laws , as discussed in Chapter 16 . The model calculates the actual rates of mass transfer at each step of the reaction progress from the rate constants , as measured in laboratory experiments , and the fluid's degree of ...
Page 16
... Kinetic reaction models In kinetic reaction paths ( discussed in Chapter 16 ) , the rates at which minerals dissolve into or precipitate from the equilibrium system are set by kinetic rate laws . In this class of models , reaction ...
... Kinetic reaction models In kinetic reaction paths ( discussed in Chapter 16 ) , the rates at which minerals dissolve into or precipitate from the equilibrium system are set by kinetic rate laws . In this class of models , reaction ...
Page 22
... kinetic rate constants taken to describe chemical reaction , as well as the hydrologic properties assumed for the medium . Notably , these data normally comprise the most poorly known parameters in the natural system . Since a valid ...
... kinetic rate constants taken to describe chemical reaction , as well as the hydrologic properties assumed for the medium . Notably , these data normally comprise the most poorly known parameters in the natural system . Since a valid ...
Contents
7 | |
29 | |
Solving for the equilibrium state | 53 |
Changing the basis | 71 |
6 | 73 |
7 | 101 |
8 | 111 |
Sorption and ion exchange | 137 |
Reactive transport | 301 |
Hydrothermal fluids | 319 |
Geothermometry | 341 |
Evaporation | 357 |
Sediment diagenesis | 373 |
Kinetics of waterrock interaction | 387 |
Weathering | 405 |
Oxidation and reduction | 415 |
10 | 155 |
11 | 166 |
12 | 181 |
Mass transfer | 193 |
Polythermal fixed and sliding paths | 201 |
Geochemical buffers | 217 |
Kinetics of dissolution and precipitation | 231 |
Redox kinetics | 245 |
Microbial kinetics | 257 |
Stable isotopes | 269 |
Transport in flowing groundwater | 285 |
Waste injection wells | 427 |
Petroleum reservoirs | 435 |
Acid drainage | 449 |
Contamination and remediation | 461 |
Microbial communities | 471 |
Sources of modeling software | 485 |
Evaluating the HMW activity model | 491 |
Minerals in the LLNL database | 499 |
Nonlinear rate laws | 507 |
Index | 536 |
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Common terms and phrases
acid activity coefficients albite anhydrite aqueous species aquifer assume basis species Bethke brine buffer Ca++ CaCC CaCO3 calcite calculation results carbonate CaSO4 CH3COO Chapter chemical CO2 fugacity component composition concentration cont’d contains Cosmochimica Acta cristobalite dispersion dissolution dissolved dolomite electron equilibrium constant example Fe++ ferric fluid fluorite formation free cm3 fugacity geochemical modeling geochemistry Geochimica et Cosmochimica governing equations groundwater groundwater flow HCO3 hematite hydrothermal initial ionic strength isotopic iteration kaolinite kinetic methanogens mg/kg Mg++ microbial minerals molal mole numbers muscovite NaCl oxidation oxygen precipitate predicted procedure produce pyrite quartz rate constant rate law rate_con react reactant reaction modeling reaction path reactive transport redox reactions saturation seawater sediment silica simulation SiO2 SiO2(aq solution sorbing sorption step sulfate sulfide supersaturated surface complexation swap temperature thermodynamic tridymite umolal undersaturated
Popular passages
Page 379 - ... present day because erosion has reduced the elevation of the basin's western margin. Paleohydrologic models calculated for the basin (Lee and Bethke, 1994) suggest that in the Eocene groundwater flowed eastward through the Lyons at an estimated discharge of about 1 m/yr. Flow in the Pennsylvania!! Fountain formation, a sandstone aquifer that underlies the Lyons and is separated from it by an aquitard complex, was more restricted because the formation grades into less permeable dolomites and evaporites...