Workshop SA2.

Optimising the investigation and remediation process from plume delineation through site closure using computer assisted design strategies.

Sunday, 8 September, 2019

Instructor: Larry M. Deschaine, PhD, P.Eng

Summary

Those responsible for managing or remediating chemical or radionuclide impacted sediments, soils, surface or groundwater including designing remedial solutions and operating projects benefit from tools that help them find acceptable, efficient and effective solutions to complex and multi-faceted planning challenges at efficient cost points.
However, the more challenging sites remain resistant to efficient and effective remediation. These are precisely the environmental problems that persist as fiscal and technological challenges as the success of the heuristic trial-and-error tactic or using simplified conceptual site models is an underpowered approach in this problem arena.
The course will cover the optimisation of site investigation and remedial design processes using computer assisted strategies for developing optimal site-specific investigation and monitoring well network designs, and remedial designs using pump and treat, in-situ bioremediation and monitored natural attenuation (MNA) technologies.
The tools and techniques discussed in this workshop enable formal, physically consistent and robust analysis using optimal approaches to solve environmental contamination problems of any level of complexity. These techniques provide formal evaluation of uncertainty in design performance and hence design robustness quantification.
Moreover, these tools can automatically adapt the remediation system and its operations to the plume as it shrinks during remediation implementation, thereby eliminating unnecessary efforts and expenditures. This allows for improved fiscal and resource planning when considering and comparing costs, benefits and implementability between differing feasible approaches for achieving site clean-up.
This workshop discusses the Cloud-based High Performance Computing (HPC) implementation and applications of an internal research and development project – the Physics Based Management Optimization (PBMOTM) system – which is based in part on Chapter 9 of the 2007 ITRC In Situ Bioremediation of Chlorinated Ethene DNAPL Source Zones: Case Studies titled “Simulation and Optimization of Subsurface Environmental Impacts: Investigations, Remedial Design, And Long-Term Monitoring Of BioNAPL Remediation Systems” authored by the instructor. https://www.itrcweb.org/Guidance/GetDocument?documentID=11&documentID=11

Who should attend?

Environmental consultants, site owners, and environmental regulators involved with characterization and remediation of complex, challenging sites will benefit from this course.

Detailed Course Outline & Schedule 

Time Topic
1:30pm Introduction
• Overview of workshop goals
• Instructor and attendee’s introductions
• Special challenges attendees are facing
1:45pm Simulation using Computer Modeling
• Development of Site Conceptual Models (SCM)
• Building the flow and transport computer model
• How to apply modeling and get the results accepted
2:30pm Optimisation using Computer Modeling
• General technology overview
• Expectations of applying optimisation at sites
• How to apply optimisation and get the results accepted
3:00pm Afternoon tea
3:30pm Elements of Site Investigation
• Optimal monitoring well network design
• Redundancy elimination in long-term monitoring programs
• Case studies
4:00pm Optimisation of Groundwater Pump and Treat Systems
• Approach
• Hydraulic containment case study
• Plume remediation case study
4:30pm Optimisation of In-Situ Bioremediation and MNA Systems
• Approach
• Case studies
5:00pm

Course Summary and close