Latest Past Events

Improving the Sustainability of Thermal Remediation

How can you make thermal remediation more sustainable?  Doesn’t it use a lot of electricity or other fuels to heat the subsurface and doesn’t it require lots of drilling and materials like steel and concrete for construction and operation?  In this webinar, we discuss how we use advanced design, construction, and operations techniques to reduce the carbon footprint of thermal remediation and make it more sustainable.

As you know, In Situ Thermal Remediation (ISTR) is highly effective at quickly cleaning up contaminant source zones, including DNAPL such as Chlorinated VOCs (CVOCs), and even semi-volatile recalcitrant contaminants such as PCBs, dioxins, PAHs and PFAS.  But ISTR requires energy to heat up the soil and groundwater,  volatize the contaminants, and drilling & installation of the energy delivery wells (e.g., heaters, electrodes, and/or steam injection).

In this webinar, we will discuss how we have optimized specific design aspects of our ISTR systems to reduce the amount of power and fuel required to heat and achieve the remedial goals, including:

  • Use of numerical models to develop targeted heating strategies and advanced wellfield layouts and heating designs,
  • Design of heaters and electrodes that are capable of precisely targeting the treatment interval,
  • Incorporation of insulated vapor covers over the ISTR wellfields and
  • Use of sophisticated operational strategies to get the most out of the energy delivered to the subsurface for heating and contaminant removal.

So, please join us for an informative look and discussion on how thermal remediation can be optimized to reduce its energy usage and carbon footprint. And importantly, there will be time at the end of the presentation for your questions, so bring them on!

ERH and TCH – How to Choose Your Thermal Remediation Technology (and Why)

It’s one of the most commonly asked questions when considering thermal remediation, and in this webinar one of the industry’s leading experts will answer it. Join TerraTherm, a Cascade Company’s Vice President John LaChance as he introduces the basic operational theory and concepts for both technologies. He’ll discuss their application to a set of typical site conditions (e.g., low and high permeability zones in unconsolidated and bedrock formations) and contaminants (e.g., CVOCs), and highlight typical design approaches, assumptions, and the pros and cons of each.

John will share real-life examples of full-scale projects involving electric resistance heating (ERH) and thermal conductive heating (TCH), including detailed breakdowns and comparisons of costs. He’ll also touch on ETDSPTM, a form of ERH that employs active injection and extraction of water. If you have burning questions about how ERH and TCH stack up, this is your chance to get them answered.

25th Railroad Environmental Conference

University of Illinois, Urbana, Champaign, IL Champaign, IL United States

RREC features presentations by railroaders, consulting engineers, academics and others involved in all aspects of railroad environmental topics. The annual railroad environmental conference enables you to meet with your peers throughout the railroad environmental community to exchange views, learn about new techniques and technologies, and generally stay in touch with the direction of the railroad industry’s environmental programs.

28th Florida Remediation Conference

Rosen Center Hotel 9840 International Drive Orlando, 32819 United States

The Florida Remediation Conference (FRC) is one of the premier soil, air and water remediation conferences of the year.  Though FRC started out as a Florida-centric event over two decades ago, it has developed a solid reputation for fostering the remediation and redevelopment industries across the Southeast.  FRC attracts over 600 attendees comprised of a mix of industry representatives, developers, consultants and contractors, and over 100 exhibitors and sponsors from across the country.  It is far from just being a Florida event.

SAME Presens – DCHWS West 2023

Grand Hyatt – Denver, CO 1750 Welton St Denver, CO 80202 United States

DCHWS West 2023 is hosted by the SAME Denver Metro post between 10/25-10/27 in downtown, Denver, CO. Learn about design and construction iissues at hazardous waste sites with other industry professionals.

The Fate of PFAS During Thermal Remediation

Is it possible to remediate PFAS contaminants? Our research and experience indicate that it is indeed possible using high-temperature thermal remediation, although there are important factors to consider  to ensure complete removal and treatment of not only target PFAS but also non-target PFAS such as precursors. In this webinar, we dive into the science of using thermal remediation to treat soil contaminated with PFAS and explore the use of our proven high-temperature thermal remediation technology, where soil temperatures ranging from 350 to 500 degrees Celsius are maintained to achieve stringent cleanup levels. Through our research, which we will share during the webinar, we were able to close the fluorine mass balance and determine the fate of the PFAS compounds during thermal treatment.  This allowed us to assess the effectiveness of high-temperature thermal remediation on the removal of PFAS from soil and to design appropriate off-gas treatment systems to ensure that the potential to emit both target and non-target PFAS, including fluorinated hydrocarbons like CF4 and other significant greenhouse gasses, are appropriately managed.

Grab your popcorn and push play for one of the year’s more informative and interesting on-demand webinars!

How are VOCs Treated Using Thermal Remediation?

Add heat to remediate!  Sounds simple enough, but do you ever wonder how raising the temperature can be so effective at removing volatile organic compounds (VOCs) from soil and groundwater, even from difficult-to-remediate low-permeability silts and clays?

TerraTherm technology experts Nikole Huard and John LaChance introduce the primary thermal technologies and mechanisms responsible for this amazing feat.  Key site information useful in evaluating whether In Situ Thermal Remediation (ISTR) is the best option for your site will also be covered.  They  review:

  • Important design do’s and don’ts for a successful remedy,
  • Common ISTR myths, and
  • Typical costs for ISTR at a VOC site.

There were interesting questions at the end of this session so make sure to listen all the way through. This recorded flash webinar is 30 minutes.

Can Thermal Remediation Technologies be Combined at a Site?

Maybe you have a site with challenging geological features, and you’re trying to figure out if a thermal remediation technology can be used. Or perhaps you have a client who is on a tight schedule and needs to treat a source zone and a downgradient plume simultaneously to develop the site in a short amount of time.

What may come as a surprise is that while each individual thermal technology has its sweet spot, multiple technologies can be used safely at a site simultaneously to address contamination in complex geologies like silts, clays, sands, and fractured bedrock.

In this 30-min flash webinar VP of Technology, Steffen Griepke and Senior Technologist, Erin Hauber will reveal when it’s beneficial to combine thermal technologies to meet the site-specific goals. They will provide several examples of projects where thermal technologies have been successfully combined.

Join the discussion for insight on how and when to combine thermal technologies to treat sites with varied and complex conditions.  There will be time at the end for Q&A, so bring your questions about using thermal to remediate sites.

What is Steam Enhanced Extraction (SEE) and How is it Applied?

Although Steam Enhanced Extraction (SEE) may not be the most common thermal remediation technology, it is the go-to approach for heating and treating sites with high permeability and groundwater flux. Did you know it’s also the most cost-effective way to input energy into the subsurface?

In this 30-min webinar, two thermal remediation experts will give you an overview of SEE. You will learn:

  • How SEE works,
  • What geologic conditions it is best suited for,
  • Design considerations to ensure a successful SEE project,
  • SEE sweet spots, and
  • Examples of SEE projects.

VP of Technology, Steffen Griepke and Senior Project Engineer, Nikole Huard, will answer your questions about using SEE to remediate sites.

What is Thermal Conduction Heating (TCH) and How is it Applied?

If you’re new to the environmental services industry, you may know about thermal remediation but not necessarily the fundamentals and nuances of the different heating technologies. Each technology has its own strengths and weaknesses that are important to be aware of when selecting the best thermal technology and approach to fit and meet your site’s remedial needs.

In this 30-minute flash webinar, our VP of Technology, Steffen Griepke, and Technologist, Sam Nienstedt, will give you an overview of Thermal Conduction Heating (TCH). They will cover:

  • How it works,
  • What geologic conditions it is best suited for,
  • What contaminants it can treat,
  • Design considerations to ensure a successful TCH project,
  • TCH Sweet Spots

If you’re interested in gaining an understanding of TCH and how it works, this webinar series is one you won’t want to miss.

Watch the webinar-on-demand today!

What is Electrical Resistance Heating (ERH) and How is it Applied?

New to thermal remediation? If so, understanding how the technologies work and how to choose the best one for your project can be overwhelming and confusing. Each heating technology has its own strengths and weaknesses depending on the site conditions and contaminants of concern.

In this 30-minute flash webinar, our VP of Development, John LaChance, and Senior Technologist, Erin Hauber, will give you an overview of Electrical Resistance Heating (ERH). You will learn:

  • How ERH works,
  • What geologic conditions it is best suited for,
  • What contaminants it can treat,
  • Design considerations to ensure a successful ERH project, and
  • ERH sweet spots.

What is Thermal Remediation?

Are you in need of a solution for a site with contaminants that are hard to treat, an aggressive schedule, and/or stringent cleanup goals? If so, then thermal remediation may be a strong candidate for your site.

In this 30-minute flash webinar, Senior Technologist Erin Hauber and Senior Chemist Alyson Fortune will cover the basics of thermal remediation. They will introduce the three primary thermal technologies, Electrical Resistance Heating (ERH), Thermal Conduction Heating (TCH), and Steam Enhanced Extraction (SEE). They will explain how they work, the key removal mechanisms, and what constituents & lithologies they are best suited to treat.

If you’re interested in gaining a basic understanding of thermal remediation and how it can be used to remediate source zones, this webinar series is one you won’t want to miss. Watch the webinar-on-demand today!

What is Thermal Remediation?

Are you in need of a solution for a site with contaminants that are hard to treat, an aggressive schedule, and/or stringent cleanup goals? If so, then thermal remediation may be a strong candidate for your site.

In this 30-minute flash webinar, Senior Technologist Erin Hauber and Senior Chemist Alyson Fortune will cover the basics of thermal remediation. They will introduce the three primary thermal technologies, Electrical Resistance Heating (ERH), Thermal Conduction Heating (TCH), and Steam Enhanced Extraction (SEE). They will explain how they work, the key removal mechanisms, and what constituents & lithologies they are best suited to treat.

If you’re interested in gaining a basic understanding of thermal remediation and how it can be used to remediate source zones, this webinar series is one you won’t want to miss. Watch the webinar-on-demand today!

Low Temperature Thermal – The Sustainable Thermal Remediation Approach

“Thermal” and “sustainable” in the same sentence?!

Yes! Although most often associated with a high demand for resources and infrastructure, thermal remediation can be accomplished sustainably.

In this flash webinar, John LaChance and Erin Hauber will explain how low-temperature thermal technology can address your challenges in an environmentally and economically friendly manner. They will describe how the technology works, and the remediation mechanisms targeted by low-temperature thermal. They’ll also cover which contaminants of concern (COCs) are most suited for this approach, costs, and timeframe.

John and Erin will answer questions during a Q&A at the end of the presentation, so be sure to submit yours during registration.

ISTR and Subsidence Risks

More and more frequently, In Situ Thermal Remediation (ISTR) is being used to treat contaminations located below buildings, roadways, and other critical infrastructure. Subsidence and potential geotechnical effects on buildings and infrastructure are concerns often raised in the initial design phase of a thermal remedy.

While the heating approach and main heating mechanisms differ based on the ISTR technology utilized, heating in general will thermally expand the soils treated and at the same time, change the saturation of the treated volume due to boil-off of some of the water. Depending on the geology, this can lead to changes in the geotechnical integrity.

In this flash webinar, the basics factors affecting the geotechnical properties during a thermal remedy will be discussed, along with a general description of soil types where subsidence is more likely to happen. Examples of geotechnical pre-investigations and tests utilized to determine the impact of a structure’s stability will be given along with case studies showing data from thermal areas remediated below structures.

Introduction to ISTR – Part 2

In the last 20 years, thermal remediation has gained a reputation as one of the most effective approaches for addressing sites with hard-to-treat constituents; including everything from, VOCs, SVOCs and PAHs to MGP coal tar PCBs, dioxins and even PFAS. But to reliably and uniformly achieve site goals, the project has to be well engineered, with a clear understanding of…

  • The geological setting
  • Which contaminants are being addressed and where they are in the subsurface
  • The estimated mass of constituents to be removed
  • Which heating technologies are best suited for the site
  • The timeframe available for the project
  • What the remedial objectives are, and more.

In this second flash webinar of the series, Nikole Huard and Steffen Griepke will cover how to select the best technology for your site and remedial goals and provide a few real-life examples.

There will be time for Q&A after each webinar, so be sure to bring all the questions about thermal remediation you’ve never had a chance to ask.

If you’re interested in gaining a basic understanding of thermal technology, this two-part webinar series is one you won’t want to miss.

Introduction to ISTR – Part 1

In the last 20 years, thermal remediation has gained a reputation as one of the most effective approaches for addressing sites with hard-to-treat constituents; including everything from, VOCs, SVOCs and PAHs to MGP coal tar PCBs, dioxins and even PFAS. But to reliably and uniformly achieve site goals, the project has to be well engineered, with a clear understanding of…

  • The geological setting
  • Which contaminants are being addressed and where they are in the subsurface
  • The estimated mass of constituents to be removed
  • Which heating technologies are best suited for the site
  • The timeframe available for the project
  • What the remedial objectives are, and more.

In this first of two flash webinars, thermal experts Nikole Huard and Steffen Griepke will cover the basics of thermal remediation. They’ll explain the key removal mechanisms and how the three primary thermal technologies work and what constituents and lithologies they’re best suited to treat as well as the essential site information required to evaluate whether thermal remediation is a good fit and typical project timeframes.

There will be time for Q&A after each webinar, so be sure to bring all the questions about thermal remediation you’ve never had a chance to ask.

If you’re interested in gaining a basic understanding of thermal technology, this two-part webinar series is one you won’t want to miss.

Because a thermal wellfield is a constantly changing entity with many different characteristics, collecting and managing the right data is essential in a successful treatment outcome. The field data and process numbers we get from collected data reveal trends and details that allow us to optimize our treatment approach, streamlining the path to completion. To gain real-time feedback, our team utilizes the “TerraTherm Insight Portal,” which allows us to optimize the thermal remedy and track important site data, as they are collected.

In this webinar, Anthony Caravella, Instrumentation Engineer at TerraTherm, a Cascade Company, will explain the importance of data management and how it helps to optimize treatment. He will highlight the functions of TerraTherm’s Insight Portal and how it improves the lines of communications between our team and the client. Attendees will also learn about real-life examples of data management from the field.

Thermal Treatment of PFAS – Does it Work?

Many promising Pump & Treat Technologies are promoted to treat PFAS in groundwater which is excellent to reduce the risk of further spreading. However, no technologies have been applied to eliminate PFAS source zones so far.

Join three experts from TerraTherm and our European partner KrugerVeolia when they address the topical issue: Is it possible to remove the source totally and permanently?

You will learn:

  • How do you analyze PFAS – a family with 3000+ members
  • What are the lowest and the most optimal temperatures for removing PFAS
  • What is the fate of the fluorine
  • Which lab tests and full scale projects have been performed worldwide
  • What to look for and what to avoid in terms of successful remedy of PFAS source zones

Thermal 101: What Is Thermal Remediation And How Does It Work?

In the last 20 years, thermal remediation has gained a reputation as one of the most effective approaches for addressing sites with hard-to-treat constituents, everything from VOCs, SVOCs and PAHs to MGP coal tar and dioxins. But to achieve site goals, the project has to be well engineered, with a clear understanding of…

  • The geological setting
  • Which contaminants are being addressed and where they are in the subsurface
  • The estimated mass of constituents to be removed
  • Which heating technologies are best suited for the site
  • The timeframe available for the project
  • What the remedial objectives are, and more.

In this webinar, thermal experts Nikole Stone and Steffen Griepke will cover the basics of thermal remediation. They’ll explain how the three primary thermal technologies work, what constituents and lithologies they’re best suited to treat, typical project timeframes, and a few real-life examples. There will also be time for a Q&A, so be sure to bring all the questions about thermal remediation you’ve never had a chance to ask.

If you’re interested in gaining a basic understanding of thermal technology, this is a webinar you won’t want to miss.