Remediation engineering: Design Concepts

Remediation engineering as a discipline has evolved only in the last few years and continues to evolve even today. There is an increased level of awareness regarding the efficiencies and limitations of the applicable technologies. Pump and treat systems, the primary remediation technique during the early days, have been found to be ineffective due to better understanding of contaminant fate and transport mechanisms. Many new and innovative in situ technologies have been introduced recently to develop faster and more cost effective solutions for the responsible parties. As a result, engineers and scientists practicing remediation engineering have to continuously learn the development and application of new concepts and techniques.

E-bok.

1.1 Introduction -- 1.2 Practice of Remediation Engineering -- 2. Contaminant Characteristics and Partitioning -- 2.1 Introduction -- 2.2 Contaminant Characteristics -- 2.3 Hydrodynamic Processes -- 2.4 Transport in the Unsaturated Zone -- 2.5 Abiotic Processes -- 2.6 Biotic Processes -- 2.7 Summary -- 3. Soil Vapor Extraction -- 3.1 Introduction -- 3.2 Governing Phenomena -- 3.3 Applicability -- 3.4 System Design -- 3.5 Bioventing -- 3.6 Monitoring Requirements -- 3.7 Vapor Treatment Technologies -- 4. In Situ Air Sparging -- 4.1 Introduction -- 4.2 Governing Phenomena -- 4.3 Applicability -- 4.4 Description of the Process -- 4.5 System Design Parameters -- 4.6 Pilot Testing -- 4.7 Monitoring Considerations -- 4.8 Process Equipment -- 4.9 Modifications to Conventional Air Sparging Application -- 4.10 Cleanup Rates -- 4.11 Limitations -- 4.12 Knowledge Gaps -- 4.13 Summary of Case Studies in the Literature -- 5. In Situ Bioremediation -- 5.1 Introduction -- 5.2 Microbial Metabolism -- 5.3 Microbial Reactions and Pathways -- 5.4 Biodegradation Kinetics and Rates -- 5.5 Environmental Factors -- 5.6 In Situ Bioremediation Systems -- 5.7 Biomodeling -- 5.8 Primary Knowledge Gaps -- 6.…