Delivery and Mixing in the Subsurface

1. Front Matter

   Pages i-xxx

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2. Introduction

   • Peter K. Kitanidis, Perry L. McCarty

   Pages 1-6

3. Chemical and Biological Processes: The Need for Mixing

   • Perry L. McCarty, Craig S. Criddle

   Pages 7-52

4. Transport and Mixing

   • Peter K. Kitanidis

   Pages 53-75

5. Hydrogeochemical Models

   • Albert J. Valocchi

   Pages 77-116

6. Travel-Time Based Reactive Transport Modeling for In Situ Subsurface Reactor

   • Jian Luo

   Pages 117-138

7. Recirculation Systems

   • Mark N. Goltz, John A. Christ

   Pages 139-168

8. Permeable Barrier Walls

   • Robert W. Gillham, John Vogan

   Pages 169-191

9. In Situ Sparging for Delivery of Gases in the Subsurface

   • Richard L. Johnson, Paul C. Johnson

   Pages 193-216

10. Intrinsic Remediation in Natural-Gradient Systems

    • Olaf A. Cirpka

    Pages 217-238

11. Source Remediation Challenges

    • L. M. Abriola, J. A. Christ, K. D. Pennell, C. A. Ramsburg

    Pages 239-276

12. Back Matter

    Pages 277-325

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This volume is meant to provide the practitioner with information on the natural mixing processes occurring in aquifers as well as to describe basic strategies that can be implemented to enhance mixing in particular cases. For example, when it comes to mixing miscible liquids, one can speed up mixing in the formation by manipulating the flow such as through the use of recirculation wells. Furthermore, much of the mixing can be achieved partially within recirculation wells themselves, where contaminated water is admixed with additives, volatile products may be removed through a vapor mass exchanger, etc. Thus, adding mixing wells can significantly increase the performance of the delivery and mixing system and speed up the process of remediation.

• , Dept. Civil & Environmental Engineering, Stanford University, Stanford, USA

  Peter K. Kitanidis

• Civil and Environmental Engineering, Stanford University, Stanford, USA

  Perry L. McCarty

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