The Remediation Technology Summit

February 26-28, 2019

Colorado Convention Center
Denver, CO

alperinEd Alperin
Chief Operating Officer
Solutions-IES, Inc. and EOS Remediation, LLC

Ed Alperin, QEP is the Chief Operating Officer of Solutions-IES, Inc. and its subsidiary EOS Remediation, LLC. He is responsible for the day-to-day operations of the company and provides the leadership and management to facilitate growth of the organization. He earned his BS in Chemical Engineering from Lowell Technological Institute (now UMass Lowell) and has more than 40 years of experience in operations management, strategic development, commercialization, and application of environmental technologies for the treatment of hazardous, toxic and radioactive waste. Prior to joining the company, he held a senior management position in a Fortune 500 environmental company where he managed operating and engineering groups that were responsible for the application of technology solutions. He was responsible for taking remediation technologies from conceptual development in the laboratory through commercialization and implementation in the field.

FLASH POSTER PRESENTER - Thought Leadership Around Remediation Decision-Making

How to Improve the Performance of EVO Project

Emulsified vegetable oil (EVO) has been used at thousands of sites to successfully remediate chlorinated solvents, chromate, uranium, perchlorate and explosives. However at some sites, remediation systems did not meet cleanup goals. In 2006 and 2007, EVO was injected at two different locations at the former Naval Training Center (NTC) Orlando to enhance reductive dechlorination (ERD). At both sites, the EVO systems have been effective in reducing trichloroethene (TCE) concentrations. However at both sites, substantial concentrations of 1,2-cis-dichloroethene (cDCE) and vinyl chloride (VC) remain.

With support from ESTCP, we are conducting extensive field, laboratory and numerical modeling evaluations at both sites to: (a) identify the reason(s) why the remediation systems failed to meet cleanup goals; and (b) develop new approaches and/or procedures to improve performance. Work includes: (1) high resolution site characterization of both sites with MIP/HPT and soil sampling to measure spatial variations in CVOCs, hydraulic conductivity (K), grain size distribution, pH, and sediment acidity; and (2) laboratory studies to measure EVO and buffer transport parameters in high, moderate and low K material. High resolution numerical models are then used to integrate information generated from the site characterization and laboratory experiments to determine why the remediation systems did not meet cleanup goals

Our initial results indicate that remediation performance at both sites is limited by two factors: (1) incomplete contact between the EVO and residual TCE; and (2) insufficient buffer addition to raise the pH to a suitable level for complete reductive dechlorination. Results of this work are being used to develop guidelines for improving the performance of future EVO projects.

In this presentation, we will teach attendees how to:

  1. Design EVO injection systems to provide more effective contact with contaminants, improving performance and reducing cleanup times.
  2. Determine the amount of buffer