Author Archives: Nate Bierschenk

About Nate Bierschenk

Nate Bierschenk began working at TerraTherm, Inc. in 2012 as a Marketing Assistant. Since then, Nate has grown into a more technical role and is currently Technical Sales Specialist servicing the Southeast. In addition, Nate is the service line sales lead for TerraTherm's new on-site thermal offering, the Heated-Box or HB1100 approach.

Avoid Costly Off-Site Hazardous Waste Disposal with TerraTherm’s Economical On-Site Heated-Box Approach

Transportation and disposal of soil or sediment impacted with hazardous levels of organic contamination can be costly and contributes to traffic congestion. In addition, the liability associated with the material tends to follow when shipped off site. If the material ends up in a landfill, that liability may never go away. Treating on-site eliminates these issues and with TerraTherm’s new thermal approach, it can yield significant savings for our clients. Introducing In Pile Thermal Desorption® (IPTD®) This ex-situ (above ground) technology can: Treat polychlorinated biphenyls (PCBs) and dioxin-contaminated materials on-site, quickly and efficiently, Remove volatile organic compounds (VOCs) from mixed and … Continue reading

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

TerraTherm Gains Certification of Heating System

As an Electrical Engineer at TerraTherm, one of the most interesting (and at times challenging) aspects of my work stems from the following deceptively simple article from the National Electric Code (NEC): Article 110.2 of the NEC NEC 110: Requirement for Electrical Installations The conductors and equipment required or permitted by this Code shall be acceptable only if approved. Since the NEC is adopted, and in many instances with amendments, by individual states, this one simple article may be expanded to include additional requirements.  For example, in the California Electric Code (CEC): CEC – Sec. 83-2  All Electrical materials, devices, … Continue reading

Posted in In Situ Thermal Remediation | Leave a comment

Webinar Recordings: Vapor Treatment Optimization Approaches and Thermal Treatment – Challenges and Solutions

In case you missed the last two installments of TerraTherm’s educational webinar series, you can now watch the recorded presentations. Vapor Treatment Optimization Approaches: Safe and Effective Compliance Strategies Description: Presented by TerraTherm’s Engineering Manager, Steve McInerney, P.E., on May 28th, 2015, this webinar covers optimization strategies for treating vapors recovered during thermal remediation operations. The discussion focuses on a range of vapor-phase operating conditions encountered during both low temperature and high temperature thermal operations, and methods to limit total capital and operating cost impacts to a project. Safe and efficient vapor conditioning and treatment approaches that are routinely employed to ensure cost … Continue reading

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

Lower Explosive Limit (LEL) Monitoring for Estimating Mass Removed

Since 2000, TerraTherm has removed over three million pounds of organic contaminants from the sites we have treated. Many of these sites had yielded too much mass to economically use granular activated carbon as the vapor treatment method. Therefore, we often use thermal oxidizers, using gas and the fuel value of the contaminants to treat the vapors at temperatures of 1500°F (816°C) or higher. The National Fire Protection Agency has mandated continuous monitoring of vapors entering oxidizers when those vapors are expected to be over the 25% Lower Explosive Limit (LEL). Additionally, thermal oxidizers generally have a safe upper operable … Continue reading

Posted in Data Management, FAQs, In Situ Thermal Remediation, Sites/Projects | 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: Steam Enhanced Extraction – The tricky thermal solution for permeable sites

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: “Steam Enhanced Extraction – The tricky thermal solution for permeable sites” Presented by TerraTherm’s Senior Vice President and Chief Technology Officer, Dr. Gorm Heron. Description: This presentation focuses on the oldest In Situ Thermal Remediation (ISTR) technology, Steam Enhanced Extraction (SEE).  It is vastly different from the other ISTR methods used, in that steam is generated above-ground and injected through wells, heating the ground while displacing fluids as the steam zone grows.  Since steam tends to … Continue reading

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

The Road to a Successful Remediation is Paved with Data

Accurate data routinely collected can be the difference between a successfully completed thermal remediation project, and one with extended operations, costing the client money. TerraTherm designs and executes a reliable data collection process during In Situ Thermal Remediation (ISTR) projects that specifically targets key operational data, therefore enhancing system performance, reducing energy consumption, and documenting when project goals are met. Depending on the complexity of a site and the specific remedial objectives, any number of data analyses can be performed, but the quantity and quality of data are paramount. The data are used to create detailed mass and energy balances … Continue reading

Posted in Data Management, In Situ Thermal Remediation | 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

Operating at an In Situ Thermal Remediation Site

Seeing a TerraTherm site operate is an extraordinary thing. The view of the stack, faithfully discharging clean water vapor into the air, the metallic chirping of In Situ Thermal Desorption (ISTD) heaters oscillating in their well casings, and the low frequency humming of the treatment equipment truly is a unique experience. The principals of subsurface heating with Thermal Conductive Heating (TCH) are simple, but to actually implement this aggressive source zone treatment technology is another thing altogether. It is impressive to think about how quickly a source area can be treated, when something like 15 years ago, the only other … Continue reading

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

Bedrock Drilling using Sonic at the SRSNE Superfund Site

The contamination at the Solvents Recovery Service of New England, Inc. (SRSNE) Superfund Site (Site) in Southington, Connecticut is the result of the practices of SRSNE, which began operations in 1955. From approximately 1955 until the facility closed in 1991, spent solvents were received from customers and distilled to remove impurities. Solvents and other wastes were handled and processed by several methods over the operational period, including distillation columns, lagoons, drums, and open pit incineration. Such operations were a source of historical releases of processed materials, solvents and spent fuels, which resulted in the presence of NAPL in the subsurface. … Continue reading

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