Remediation Webinar with John Freim, Ph.D., REGENESIS Director of Materials Science

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In this webinar we are pleased to have a special presentation from John Freim, Ph.D., REGENESIS Director of Materials Science. In his presentation, Dr. Freim discusses the benefits of using zero valent iron (ZVI) as a powerful remediation amendment that can decontaminate soil and groundwater containing chlorinated hydrocarbons, pesticides, and other toxic substances. Successful in situ remediation is predicated on using amendments offering a perfect combination of reactivity, the ability to distribute uniformly, and persistence. The webinar addresses how:

Colloidal ZVI provides high surface areas with enhanced reaction kinetics. Explaining how reactivity with PCE and other chlorinated ethenes is greatly accelerated by sulfidation of the particle surfaces while also promoting reaction pathways with chlorinated hydrocarbons that can bypass the formation of toxic daughter products.
Colloidal ZVI promotes stable aqueous suspensions with small particles and can fit within and pass through interconnected pore volume of sandy soils and similar environments. Compared to sub-micrometer ZVI products such as nanocrystalline zero valent iron (NZVI), 2 micrometer particles persist for longer timeframes.
Colloidal ZVI particles are compatible with and can be co-applied with other amendments including colloidal carbon suspensions and most organic hydrogen donors.

Dr. Freim is joined by Rick Gillespie, Senior Vice President of North America at REGENESIS, who shares his remediation expertise as it relates to the ZVI approaches featured in Dr. Freim’s presentation.

To view this free webinar, please complete the form on this page.

About the Presenter:

REGENESIS Remediation Solutions John Freim, Ph.D.
Director of Materials Science, REGENESIS
Dr. Freim is well-known throughout the environmental industry for his work in developing break-through in situ chemical reduction (ISCR) technologies successfully employed throughout the environmental remediation industry. Dr. Freim has over 30 years of expertise in materials processing, and 15 years in the environmental remediation industry, and is leading the establishment of the first REGENESIS state-of-the-art colloidal product manufacturing facility. In his role with REGENESIS, Dr. Freim is responsible for the manufacture of colloidal materials, including PlumeStop^® Liquid Activated Carbon^™, colloidal iron, and new products used in environmental remediation. Before joining REGENESIS, Dr. Freim founded and served as President of OnMaterials, a company that specialized in the affordable manufacture and application of zero valent iron (ZVI) remedial amendments for soil and groundwater remediation, which resulted in the treatment of hundreds of environmentally impacted sites. Dr. Freim received a Ph.D. in Materials Science from the University of California San Diego (UCSD) and a B.S. in Chemical Engineering from the University of Illinois at Urbana Champaign.

REGENESIS Webinar about PlumeStop with special guest presenter Rick Gillespie
Senior Vice President of North America, REGENESIS
Mr. Gillespie serves as Senior Vice President North America for REGENESIS, directing a team of technical sales consultants and engineers across North America providing industry-leading support to REGENESIS customers. He has over 20 years of experience in the environmental remediation industry. Mr. Gillespie joined REGENESIS after a successful career as a Research Scientist at Battelle Memorial Institute. His work experience has been focused on innovative remediation technologies for the treatment of chlorinated solvents, petroleum hydrocarbons, and metals in soils and groundwater. Mr. Gillespie was a co-author on the Multi-Site Air Sparging Design Paradigm. In addition, he was a contributor to the publication Principles and Practices of Enhanced Anaerobic Bioremediation of chlorinated Solvents. Mr. Gillespie earned his B.S. in Environmental Science from the University of Oklahoma.