Tersus Environmental Receives New Patent from U.S. Patent Office

The United States Patent Office has issued patent US 11,123,779 B2, Method and a Chemical Composition for Accelerated In Situ Biochemical Remediation, Alden et al. on September 21, 2021.  Authors for the newly issued patent include David F. Alden, P.E.; Gary M. Birk, P.E.; Sangho Bang, Ph.D.; Jeffrey H. Harwell, Ph.D.; and Bor Jier Shiau, Ph.D.


Tersus Celebrates 10th Anniversary

Tersus is extremely proud to be marking our 10th anniversary with the support our dedicated associates, collaborative partnership,and loyal clients.  It is quite the accomplishment for the company to reach the 10-year milestone given that the Bureau of Labor Statistics’ Business Employment Dynamics data indicates that less than ⅓ of all small businesses make it to the 10-year mark.  


Tersus Expands into Europe

Tersus establishes presence in Ireland to better serve its clients in Europe.

Co. Cork, Ireland - (May 20, 2019) Tersus announces that it has incorporated in Ireland as Tersus Environmental Limited.  As a recognized premier provider of technology-based solutions for in situ remediation, Tersus provides unparalleled technical support to increase remediation effectiveness and decrease remediation costs. “The decision to expand into Europe and establish Tersus Environmental Limited was a logical step in our business growth strategy,” said Gary Birk, Managing Partner for Tersus. “It’s critical that we meet clients where they live to service them most effectively.”

"Thanks to our presence in Ireland, Tersus can establish even closer ties with our European clients and is better positioned to introduce our technologies for soil and groundwater remediation to environmental professionals throughout the region,” said Aaron Archibald, Partner for Tersus.

For more information or to get in contact with a Tersus representative in your region, contact cutsomer support.

Do I have DNAPL at my site?

It is difficult to verify the presence of DNAPL through direct observation.   A common practice is to estimate the presence of DNAPLs indirectly by applying the “1 percent of solubility” rule-of-thumb (EPA, 1992). 


Optimizing Anaerobic Bioremediation

Nutrimens® Granular, Enhancing the Efficiency of Electron Donor Utilization in Bioremediation

Bacteria are very sensitive to low pH. The optimal pH for bioremediation is between 6 and 8.5. To keep your in situ bioremediation project on track, pH should be maintained within a range where bioremediation is maximized. In general, more fermentation means more volatile fatty acid (VFA) production and lower pH. A major consequence when pH falls below 6 is a dramatic decline in enhanced reductive dechlorination.


Self-Nano Emulsion; Advanced Electron Donor Delivery

U.S. Patent and Trademark Office Awards Tersus Patent for Self-Nanoemulsifying Oil

Research Triangle Park, NC, April 29, 2016 – Tersus Environmental announced today that the United States Patent and Trademark Office granted a patent for soil or groundwater remediation using a self-nanoemulsifying oil. The issuance of this patent further validates the innovative nature of Tersus’ electron donor technology platform and family of biotechnology-based solutions to manage complex, challenging environmental liabilities.