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PRESENTATIONS

PRESENTATIONS

PLATFORM PRESENTATIONS

POSTER PRESENTATIONS

Optimization of Remediation Amendment Applications using HRSC Techniques

  • Presenter:  Eliot Cooper
  • Session E3: High-Resolution Site Characterization
  • Schedule: Monday Night
LEARNING LABS

LEARNING LABS

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IN SITU REMEDIATION OPTIMIZATION CALCULATORS AND MATRIX - "MANIFOLDING, RADIUS OF INFLUENCE, CHLORINATED SOLVENT TECHNOLOGY​

Author/Presenter:

Objective: 

  • To demonstrate three in situ remediation tools that Cascade has developed to help practitioners optimize remediation performance. They are based on hundreds of sites across the country and represent best practices and lessons learned to ensure we learn from the past and go forward with best practices.

Description:

  • The Manifold Calculator will help calculate a Return on Manifolding Investment (ROMI) for direct push and injection through wells. The Radius of influence (ROI) calculator will calculate a ROI based on injection volumes and seepage velocity for target intervals both for injection and solids emplacement to ensure a sound basis for contact. The Chlorinated Solvent Matrix defines thermal, chemical, and characterization technology best practices considering phase (source/transition and plume) versus contaminant mass (DNAPL, PPM < DNAPL solubility and < PPM), and lithology (clay, heterogeneous, sand). This matrix can also be updated by firms that have done enough projects to develop a specific one for their projects to help train their staff and provide references to clients. All three will be provided to those in the Learning Lab and each will be described in enough detail so that they can be used by the attendees.

Schedule:

  • Tuesday, June 2nd 10:55am - 11:20am​

Download Return on Remedial Investment (RORI) Manifolding Calculator

SHORT COURSES

SHORT COURSES

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PRACTICAL HIGH PRESSURE INJECTION: PREPARATION, TOOLS, DESIGN, DISTRIBUTION, AND EVALUATION ILLUSTRATED BY CASE STUDIES

Presenters:

  • Deborah Schnell (GeoSierra),
  • Scott Noland (Remediation Products, Inc.),
  • Ryan Oesterreich (Arcadis) and,
  • Edward Winner (Division of Waste Management Commonwealth of Kentucky)

Objective:

  • Course participation will help attendees such as managers, regulators, and consultants make informed decisions when they plan, direct, and evaluate high-pressure injections. The course will discuss tool selection, injection techniques, and proper applications of the same under various site conditions and with multiple amendment types, and it will describe and illustrate the same using case studies.

 

Description:

  • In situ remediation by injections of amendments has blossomed into a common practice over the last 25 years. Unfortunately, advancements in technology, techniques, and equipment, as well as knowledge of what works versus what does not work have not been effectively communicated to remediation professionals. Many misconceptions exist regarding pumps, injection tooling, flow rate, injection point grid spacing, injection pressure, how injectate moves in the subsurface, how to monitor and evaluate amendment distribution during and after injections are completed, and, finally, what quality assurance/quality control measures can be implemented and performed in the field to ensure the best outcome. This course will provide a needed, in-depth understanding of high-pressure injection, primarily in the overburden, but also in the bedrock. The course is designed to enable participants to evaluate injection work plans and to specify equipment and injection techniques best suited to a particular remediation effort. It will assist field personnel in detecting and diagnosing problems and in critically evaluating and implementing measures to overcome them. Finally, the course will address post-injection evaluation of amendment distribution and appropriate laboratory testing to monitor performance. Topics will be systematically discussed in detail during the class and illustrated using case studies. The didactic approach will be partially problem based in that we’ll first present a core, significant concept after which we’ll present a problem from a case study. The participants will then be encouraged to solve the problem, identify the error, or oversight, to which the core concept is relevant. The purpose is to ensure that the participants recall and remember lessons many years after the course is completed.

Schedule: Sunday, May 31st from 1:00pm to 5:00pm

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REMEDIATION OF CONTAMINANT MASS IN LOW-PERMEABILITY MATERIALS

Presenters: 

  • Steffen Griepke (TerraTherm),
  • David B. Gent (USACE),
  • William Slack (FRx, Inc.),
  • Eric J. Tollefsrud and,
  • James Wang (Geosyntec)

Objective:

  • The course will provide information specifically related to remediation in low-permeability materials (e.g., clay and fractured rock), including modeling and conceptual site model development for remedial design, as well as remediation technologies suitable for such challenging materials. The potential audience includes environmental site/program managers, regulators, and remediation practitioners.

Description: 

  • Topics related to challenges and benefits of remediating contaminant sources in low-permeability materials, including development of conceptual site models (CSMs) supporting remedial design, as well as processes and applications of several in situ remediation technologies particularly suitable for these challenging materials will be covered. The life-cycle of a CSM demands iterative improvement of understanding as the project proceeds, based on systematic procedures. Data gap assessment and uncertainty analysis are the structural elements in the life-cycle of a CSM, and proper management of these CSM elements is particularly challenging and critical for sites with low-permeability zones. We will examine some pitfalls in evolution of the CSM life-cycle and present examples of CSMs that have been developed to meet the design, implementation and performance assessment of increasingly sophisticated remedial technologies. The CSM discussions will have particular focus on fractured bedrock as a low-permeability medium. Various environmental fracturing technologies have been demonstrated to effectively facilitate in situ remediation of low-permeability materials. The mechanisms, techniques, and applications of environmental fracturing, including the current spectrum of proppant materials, fracture emplacement methodologies, and remedial applications will be discussed. An in-depth explanation of several thermal technologies, including thermal conductive heating (TCH), steam-enhanced extraction (SEE), and electrical resistance heating (ERH), that are often considered as effective alternatives for low-permeability materials and bedrock will be provided. Remedial design approaches and tools, as well as guidelines for evaluating strengths and weaknesses of each technology with considerations of challenging site conditions will be considered. Electrokinetic (EK) transport of remediation amendments in the subsurface relies on ion migration and electroosmosis, which are electrochemical mechanisms relatively independent of soil's hydraulic conductivity. Therefore, EK transport can achieve effective distribution of select amendments in low-permeability and heterogeneous subsurface formations. The fundamentals of EK technology, its engineering implementation, and example projects will be presented.

Schedule: Sunday, May 31st from 1:00pm to 5:00pm

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IN-BOOTH DEMOS

IN-BOOTH DEMOS

CLICK THE HIGHLIGHTED NAMES OF OUR EXPERTS BELOW TO LEARN MORE ABOUT THEIR PRESENTATION TOPICS

Thermal Table Top Demonstration with John LaChance and Steffen Griepke

DESCRIPTION COMING SOON

Schedule: Tuesday/Thursday

Amendment Suspension with Guar with Deb Schnell

DESCRIPTION COMING SOON

Schedule: Monday/Wednesday

PFAS Site Characterization with Eliot Cooper and Jason Flattery

DESCRIPTION COMING SOON

Schedule: Monday/Wednesday

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