Contaminant
Chemistry and Transport in Soil and Groundwater
Course I.D. CHEM-403B (Course 2 of 2 in a Series)
August 24 - 25, 2006,
8:30 A.M. to 5 P.M. (2 Days)
Ecotrust
Conference Center
721 NW 9th Avenue, Portland, Oregon
Instructor: Erick McWayne, Northwest Environmental Training Center
This course provides participants with an overview of key concepts essential to understanding environmental contamination and provides a fundamental understanding of the release and transport of chemicals in soil and groundwater. This material is intended for environmental professionals who are not chemists, but who require a fundamental understanding of contaminant behavior and monitoring parameters for their work. This course is recommended for all environmental professionals working with contaminated soil and water with minimal formal training in this subject. The course material will greatly enhance on-the-job training. It is also recommended for project managers seeking a review of the subject.
Course Topics:
| Contaminant Chemistry Overview | Vapor Transport |
| - Functional Groups, Chemical Properties, and Hazards | - Vapor Pressure, Solubility, Molecular Weight, and Vapor Density |
|
Transport Mechanisms | - Contact Surface and Vapor Diffusion |
| - Advection | - Vadose Zone and Air-Filled Porosity |
| - Mechanical Dispersion | Natural Attenuation |
| - Chemical Dispersion | - Overview of Natural Attenuation Processes |
| Contaminant Solubility Rules | - Biodegradation Pathways for Common Contaminants |
| 3- and 4-Phase Equilibrium Partitioning | Focus on Metals Contamination |
| - Adsorption and Absorption | - pH and Mobility |
| - Definitions of Kd, Koc, foc, Kow, and KH | - Dissolved and Particulate Forms |
| - NAPL One Percent Rule | - Cation Exchange |
| - Molar Fraction Calculations | - Complexation, Chelation, and Ligands |
| - Contaminant Mass Fraction Calculation | - Hydrated Metals as Acids |
| - Residual Saturation Calculation | Focus on Hydrocarbon Contamination |
| - Mechanical Dispersion | - Gasoline and Diesel Chemistry |
| - Diffusion | - BTEX, Additives, and Other Potential Concerns |
| Groundwater Transport | - Cosolvation |
| - Hydrogeology Review | - Plume Behavior |
| - Three Point Problem | - Geochemical Indicators |
| - Groundwater Velocity Calculations | Focus on Chlorinated Hydrocarbon Contamination |
| - Retardation and Solute Velocity Calculations | - Chlorinated Solvent Chemistry |
| Nonaqueous Phase Liquid (NAPL) Transport | - Reductive Dechlorination |
| - Capillary Fringe Interactions and Smear Zones | - Plume Behavior |
| - Estimating LNAPL Thickness from Well Free Product | - Geochemical Indicators |
| - Estimating DNAPL Critical Height | Summary and Review |
This course is part of a series and is preceded by the Fundamental Contaminant Chemistry Workshop, August 24, 2006. Attendees may register for either course individually or both courses. A discount applies when registering for both courses. Courses will begin each day at 8:30 A.M. and end at 5 P.M. Attendees will be given the opportunity to apply the course material during hands on exercises offered throughout the course.
| After completing this course, participants will be able to: -
Understand basic soil and groundwater chemistry - Calculate chemical partitioning - Understand the significance of temperature, redox potential, pH, DO, and other monitoring parameters - Apply soil chemistry principles to soil investigations - Apply water chemistry principles to groundwater investigations - Understand the chemical and biological aspects of natural attenuation - Estimate partitioning coefficients and calculate solute average linear velocity - Demonstrate an improved overall understanding of environmental chemistry |
