Tag Archives: ISTD

Liquid Granular Activated Carbon System Design Considerations

When developing a liquid treatment system design at TerraTherm, we keep in mind that the system will be temporary and have an overall short duration; typically 12 months or less. This means that we need to design and select a process configuration that minimizes the cost of meeting applicable discharge requirements. Cost elements taken into consideration include: To design the most cost-effective treatment system for each project, we rely on site owners and their consultants to provide detailed soil and groundwater characterization and identify the specific discharge requirements that will apply to the thermal remediation program. Liquid phase activated carbon … Continue reading

Posted in In Situ Thermal Remediation, Technologies | Tagged , , , , , , , , , , | Leave a comment

World’s Largest In Situ Thermal Desorption Project: Challenges and Solutions

TerraTherm and its In Situ Thermal Desorption (ISTD) sublicense holders have cleaned close to 50 sites, but what happens when we are presented with one that is remarkably large with more than 100,000 cubic yards (76,500 m3) of PCE and TCE rich soils to a depth of over 40 feet (12 m)? The site in particular that was presented to TerraTherm was a former aerospace manufacturing facility and had to be remediated in less than a year. Successfully completed by TerraTherm, this site in Teterboro, New Jersey is now the largest ISTD project to date. The redevelopment of this former … Continue reading

Posted in In Situ Thermal Remediation, Sites/Projects, Technologies | Tagged , , , , , , , , , , , , , | Leave a comment

Webinar: Life Cycle Assessment of In Situ Thermal Desorption and Improving the Sustainability of Source Removal

In case you missed our last installment of “Inside In Situ Thermal Remediation”, TerraTherm’s informational webinar series, you can find a recorded version here: Life Cycle Assessment of In Situ Thermal Desorption and Improving the Sustainability of Source Removal   Presented by TerraTherm’s Co-Founder, Chairman and Chief Scientist, Ralph S. Baker, Ph.D., this webinar was recorded on December 4th, 2014. Description: Increasing attention is being given to making remedial activities more sustainable, i.e., by minimizing the environmental, economic and social impacts of remediation projects. TerraTherm has been actively involved in such efforts for over five years. This webinar will review … Continue reading

Posted in In Situ Thermal Remediation, Technologies, Webinars | Tagged , , , | Leave a comment

Webinar: In-Pile Thermal Desorption® (IPTD®) for Treatment of POPs-Contaminated Soil and Sediment

In case you missed our last installment of “Inside In Situ Thermal Remediation”, TerraTherm’s informational webinar series, you can find a recorded version here: “In-Pile Thermal Desorption® (IPTD®) for Treatment of POPs-Contaminated Soil and Sediment” Presented by TerraTherm’s Co-Founder, Chairman and Chief Scientist, Ralph S. Baker, Ph.D., this webinar was recorded on September 11th, 2014. Description: Soil or sediment contaminated with Persistent Organic Pollutants (POPs) including PCBs, PAHs, organohaloginated pesticides, Dioxins and Furans and other recalcitrant organics, as well as mercury can be treated effectively at elevated temperatures. By contrast, conventional treatment typically requires excavation and transportation of the soil … Continue reading

Posted in In Situ Thermal Remediation, Webinars | Tagged , , , , , , , , , , | Leave a comment

Thermal Treatment of Fractured Rock – How is it Different?

Fractured rock sites are different – often it is difficult even to determine how deep the Non-Aqueous Phase Liquid (NAPL) has gone, and to define what we refer to as the “source area”. Some sites have NAPL in the fractures, and some have most of the mass trapped in the matrix, into which it has diffused over decades. This blog post discusses the two main challenges: How to decide on the thermal treatment volume without making the problem worse. How to design and implement an effective and safe thermal system. For any aggressive source treatment to be cost-effective, it is … Continue reading

Posted in FAQs, In Situ Thermal Remediation | Tagged , , , , , , , , , , , | Leave a comment

Teterboro, NJ – The Biggest In Situ Thermal Desorption (ISTD) Site in the World – Remediation Completed!

The Teterboro Landing Site in New Jersey was historically used for manufacturing precision aerospace components. The site is located adjacent to Teterboro Airport and less than 10 miles from Manhattan and New York City. TerraTherm was contracted in November 2011 to remediate an area that was impacted with Chlorinated Volatile Organic Compounds (CVOCs). The total volume of the In Situ Thermal Desorption (ISTD) treatment area was 122,300 cubic yards. The thermal remediation system designed, built and operated by TerraTherm included a wellfield with a total of 907 Thermal Conduction Heater (TCH) wells, 35 Multi-Phase Extraction (MPE) wells, 116 horizontal Vapor … Continue reading

Posted in In Situ Thermal Remediation, Sites/Projects | Tagged , , , , , , , , | Leave a comment

Webinar: Thermal Remediation of LNAPL

In case you missed our last installment of “Inside In Situ Thermal Remediation”, TerraTherm’s new informational webinar series, you can find a recorded version here: The focus of this presentation was to provide an overview of thermal treatment options for LNAPL-contaminated sites, and will cover: Thermal remediation progress over the last 10 years, Similarities between In Situ Thermal Remediation (ISTR) and thermally enhanced oil recovery, LNAPL remediation case studies, and A large LNAPL spill case – using the energy in the recovered fuel to power remediation and obtain sustainable clean-up. TerraTherm uses all three main thermal technologies: Steam Enhanced Extraction, … Continue reading

Posted in In Situ Thermal Remediation, Webinars | Tagged , , , , , , , , , , , | Leave a comment

Which Thermal Technology is Right for your Site?

So you’ve done your homework and feel that thermal may be a good fit for your site.  Now it’s time to determine the thermal technology or combination of technologies that will best accomplish cleanup goals.  There are three predominant thermal technologies in the industry:  Steam enhanced extraction (SEE); resistive heating in the form of electrical resistive heating (ERH); and thermal conduction heating (TCH), which combined with vacuum extraction is known as in-situ thermal desorption (ISTD).  When selecting a thermal technology the following key items need to be understood: Boiling points, vapor pressures, and water solubility of the contaminants: For volatile … Continue reading

Posted in FAQs, In Situ Thermal Remediation | Tagged , , , , | Leave a comment

5 Compelling Reasons Why Thermal Remediation’s Global Footprint is Rapidly Expanding

After attending the AquaConSoil conference in Barcelona, Spain last week, I’m struck by the impact that thermal remediation is having around the globe.  Until a few decades ago, In-Situ Thermal Remediation (ISTR) was only confined to R&D projects by a few major oil companies, notably Shell.  Today, ISTR has become mainstream remediation technology in the USA and is routinely considered for grossly contaminated properties. Global awareness and implementation are also accelerating, with applications documented on four continents. At AquaConSoil, an entire session was dedicated to thermal remediation.  TerraTherm also participated in two thermal remediation workshops organized by Krüger and TAUW, … Continue reading

Posted in History, In Situ Thermal Remediation, Other | Tagged , , , , | Leave a comment

Where Did In Situ Thermal Remediation (ISTR) Methods Come From?

Looking at a built-up thermal site with heaters, wells, manifold piping, process gear, and the advanced monitoring systems which can be accessed from anywhere in the world, it can be tempting to wonder how this all came about…  Hundreds of engineering details, program logic controlling automatic operation of valves, heating systems, and treatment equipment.  Yet, the systems run overnight and on weekends, with nobody there to baby-sit them.   Most of the features of a modern In Situ Thermal Remediation (ISTR) site have evolved over a period of less than 25 years.  I will try to explain the evolution here. Chemicals … Continue reading

Posted in FAQs, History, In Situ Thermal Remediation | Tagged , , , , , , , , , | 1 Comment