The Spring 2020 meeting of the Federal Remediation Technologies Roundtable (FRTR) will be held as a two-part webinar on Friday, May 29 and Friday, June 5, 2020. As always, FRTR meetings are open to the public.

FRTR's objectives for this meeting are to:

1. Review the state of the practice of bioremediation: Broad overview of where it is commonly applied, where it is still experimental, and what are the challenges.


2. Discuss advances in bioremediation for organic and inorganic contaminants, including new approaches, optimization, and tools for monitoring technologies to determine successful performance.


3. Review brief case studies to demonstrate how new technologies are being applied and optimized.

Session 2: Current Research and Inorganic Contaminants

New Technology Briefings

• Superfund Research Program (SRP);


• Strategic Environmental Research and Development Program (SERDP); and


• Environmental Security Technology Certification Program (ESTCP)

Bioreactor and Vertical Wetland Remediation of Metal Contaminated Mine Influenced Water (MIW)
Abstract: There are over half a million abandoned mine sites in the U.S. potentially emanating mining-influenced water, contaminating streams and soils in adjacent areas. These sites present major challenges for remediation, including seasonal inaccessibility, rough terrain, lack of energy sources, high acidity, and metal concentrations (e.g. Fe, Al, Cu, Pb, Zn, Mn, Cd, etc.). To appropriately evaluate mining-impacted water treatment techniques that can provide the best cost benefit with the desired effluent quality, decision-makers usually rely on bench-scale and pilot-scale tests before designing field-scale reactors. Traditionally, the focus has been on metal removal efficiency to determine the feasibility of the proposed treatment, but it is difficult to replicate the high efficiencies of bench-scale tests with field-scale reactors. The integration of aqueous phase analytical chemistry (e.g. pH, alkalinity, metal composition, anions, sulfides, etc.) with solids analysis (e.g. elementary composition, speciation by XPS and XANES, etc.) and microbial transformation of soluble metals provides the tools to evaluate metal removal while elucidating the involved mechanisms. The benefit of this approach is that the impact of several variables (e.g. substrate volume, mass and composition, hydraulic retention time, dissolved oxygen content in the influent, etc.) can be evaluated for metal and sulfate removal. Case studies of passive biochemical reactors using actual mine water from abandoned mine sites will be used to demonstrate the benefits of this approach.

Advances in Long-term Monitoring Technologies for Supporting Bioremediation
Abstract: Bioremediation for heavy metals aims to immobilize them in subsurface and to reduce aqueous concentrations for an extended time. It has been investigated for many years at the Department of Energy (DOE)'s legacy sites; particularly for uranium. A variety of bioremediation technologies and associated monitoring/modeling methodology have been evaluated. Recently, hydroxyapatite-based novel permeable reactive barriers have been developed, which has shown a very promising result at the DOE's Rifle site (Colorado), showing more than two years of immobilization without rebound. During this process, groundwater monitoring has been found to be critical for understanding groundwater system dynamics, and its effect of bioremediation outcomes. We are currently developing a new paradigm of long-term monitoring approach to support bioremediation, by taking advantage of recent advances in in situ sensors and machine learning.

Presenters:

Heather F. Henry, Ph.D., Program Administrator, NIEHS Superfund Research Program (heather.henry@nih.gov)
Heather Henry, Ph.D., is a health science administrator for the NIEHS where she oversees Superfund Research Program (SRP) grants that spans human health toxicology, risk assessment, detection technologies and remediation approaches. She provides guidance to potential applicants for SRP’s Multiproject Center Grants (P42s), Individual Research Grants (R01s), Small
Business / Technology Transfer Grants (R41-44; SBIR/STTR), and Conference Grants (R13). Heather studied plant-based environmental remediation
(phytoremediation) and ecological restoration as part of her doctoral work at the University of Cincinnati and as a Fulbright Postdoctoral Fellow at the University of Melbourne and University of Adelaide in Australia. She has been with NIEHS since 2006.

Souhail Al-Abed, EPA Office of Research and Development (al-abed.souhail@epa.gov or 513-569-7849)
Dr. Souhail Al-Abed is a research chemist at the Environmental Protection Agency (EPA) Office of Research and Development/Center for Environmental Solutions and Emergency Response. His research encompasses significant impact on advancing his fields of endeavor in remediation, materials management, and nanotechnology, particularly his work on development and application of novel methods to treat contaminated soil, sediments, and water. He evaluated novel and traditional water treatment options based on sorption, precipitation, bioremediation in bench-scale, pilot and field scale tests. He developed successful methodology to test metal removal with sulfate-reducing bioreactors using real field conditions. The experimental and theoretical work was approached using the principles of sustainability as a core: protection of human health and the environment, and resource utilization optimization to allow the next generations to have the best opportunity with their life quality. Dr. Al-Abed authored and coauthored more than 100 peer-reviewed journal articles and six book chapters. He is a Fellow of the American Chemical Society (ACS) and the Chair of the Environmental Chemistry Division at the ACS. He is also a member of American Geophysical Union (AGU) Hydrology section.

Haruko Murakami Wainwright, Ph.D., Lawrence Berkeley National Laboratory (hmwainwright@lbl.gov)
Dr. Haruko Wainwright is a research scientist at Lawrence Berkeley National Laboratory. She earned a Master in nuclear engineering and statistics, and PhD in nuclear engineering at the University of California, Berkeley. Her research focuses on hydrological modeling, spatial statistics, data integration, and uncertainty quantification. She has worked on various research topics in both nuclear engineering and environmental sciences, including nuclear waste, groundwater contamination, Fukushima radiation monitoring, and climate change impacts on ecosystems.

Andrea Leeson, Ph.D., Deputy Director & Environmental Restoration Program Manager Strategic Environmental Research and Development Program (SERDP) and Environmental Security Technology Certification Program (ESTCP) (Andrea.Leeson.civ@mail.mil or (571) 372-6398)
Andrea Leeson has been the Deputy Director of SERDP and ESTCP since 2014 and the Program Manager for Environmental Restoration since 2001. Prior to that, she was a Research Leader at Battelle Memorial Institute where she conducted scientific research on in situ bioremediation and the design and implementation of innovative biological, chemical and physical treatment technologies for site remediation and industrial wastewater. She received her doctoral degree in Environmental Engineering from The John Hopkins University.

Moderators:

Jean Balent, U.S. EPA Technology Innovation and Field Services Division (balent.jean@epa.gov or 202-566-0832)
Ms Balent is on the staff of the EPA's Technology Innovation and Field Services Division where she has worked to collect and disseminate hazardous waste remediation and characterization information since 2003. Ms Balent manages the Clean Up Information Network website and actively supports online communication and collaboration resources available to EPA. She formerly worked with the US Army Corps of Engineers Environmental Engineering Division in the Buffalo District. Ms Balent was also a member of the SUNY-Buffalo Groundwater Research Group where she constructed and tested large scale models of groundwater flow. Ms Balent has also conducted research relating to the Great Lakes, environmental remediation, and brownfields re-development. She holds a Bachelor's degree in environmental engineering from SUNY-Buffalo and a Master's degree in Information Technology from AIU.

Mark Rothas, U.S. Army Corps of Engineers (Mark.S.Rothas@usace.army.mil)
Mark Rothas has over 35 years of environmental remediation and regulatory compliance experience working in manufacturing, corporate, consulting, and USACE positions. He has performed all facets of remediation system design, construction oversight, operation and maintenance, and project management. For USACE, Mr. Rothas has worked as a remediation technology subject matter expert as a member of its Environmental Center of Expertise, and coordinates its internal programs involving technology sharing and FUDS project remediation optimization reviews. He is also an instructor for USACE training classes involving remediation technologies and management of complex groundwater remediation projects, and has participated on ITRC complex sites management and PFAS work teams. Mr. Rothas has a B.S. in Chemical Engineering from the University of Illinois and an MBA from Roosevelt University.

Cindy Frickle, U.S. EPA Office of Superfund Remediation and Technology Innovation (frickle.cynthia@epa.gov or 202-566-0927)
Cindy Frickle is a physical scientist with EPA's Superfund program where she reviews and propagates technical information to site cleanup professionals through Clu-In, EPA forums, and interagency channels. Prior to joining EPA, she spent time characterizing contaminated sites, coring sediments, studying microbes, and teaching. She completed her Biogeology MS and Geology BS in the University of Minnesota's School of Earth Sciences.

Webinar Slides and References:

• Slide Presentation for Heather Henry, Ph.D.,; Superfund Research Program; NIEHS (5.77MB/PDF)
• Slide Presentation for Souhail Al-Abed; ORD, U.S. EPA (2.48MB/PDF)
• Slide Presentation for Haruko Wainwright, Ph.D., Lawrence Berkeley National Laboratory (6.68MB/PDF)
• Slide Presentation for Andrea Leeson, Ph.D.; Deputy Director; SERDP and ESTCP (709KB/PDF)

Webinar Slides and References:

• Slide Presentation for Heather Henry, Ph.D.,; Superfund Research Program; NIEHS (5.77MB/PDF)
• Slide Presentation for Souhail Al-Abed; ORD, U.S. EPA (2.48MB/PDF)
• Slide Presentation for Haruko Wainwright, Ph.D., Lawrence Berkeley National Laboratory (6.68MB/PDF)
• Slide Presentation for Andrea Leeson, Ph.D.; Deputy Director; SERDP and ESTCP (709KB/PDF)

Additional Resources:

• Federal Remediation Technologies Roundtable (FRTR)

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Date of Seminar:

 June 5, 2020: FRTR Spring 2020 Meeting, Session 2: Bioremediation Advances - New Strategies, Optimization, and Performance Monitoring

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