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U.S. Environmental Protection Agency
U.S. EPA Technology Innovation and Field Services Division

Long-Term Performance of Biochemical Reactors for Passive Treatment of Mine-Impacted Water

Sponsored by: U.S. EPA, Office of Superfund Remediation and Technology Innovation, Technology Innovation and Field Services Division

Archived: Tuesday, April 23, 2019
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This webinar will present an overview on the background, history and principles on the use of biochemical reactors (BCRs) to treat mine-impacted water. This will include a detailed review of the configuration, operation and performance of a typical BCR system and will provide data and observations from two long-term (>8 years) operating BCR systems as examples. This presentation will also touch on the benefits and limitations, capital and operation-maintenance costs, applicability to other contaminants, as well as regulatory challenges of passive treatment using biochemical reactors through an overview of similar and related passive or semi-passive biochemical reactors currently in operation.

Accessibility, Recording, and Content Disclaimer

Rehabilitation Act Notice for Reasonable Accommodation

It is EPA's policy to make reasonable accommodation to persons with disabilities wishing to participate in the agency's programs and activities, pursuant to the Rehabilitation Act of 1973, 29 U.S.C. 791. Any request for accommodation should be made to Josie Torres at 434-233-4184 or jtorres@skeo.com, preferably one week or more in advance of the webinar, so that EPA will have sufficient time to process the request. EPA would welcome specific recommendations from requestors specifying the nature or type of accommodation needed. Please note that accommodation requests for closed captioning are not necessary. Closed captioning is being provided for all CLU-IN webinars as of October 1, 2016.

Webinar Recording

By participating in this CLU-IN webinar, you automatically agree to authorize recording of audio and visual content presented during this live event and consent to subsequent use of this recording in the public domain by the U.S. Environmental Protection Agency. This recording may include questions and poll responses provided by you during the live event. This recording will be made available after the conclusion of the live event as part of the CLU-IN webinar archives, and will remain available indefinitely. If you do not wish to consent to the recording, please do not join the live event, and contact Jean Balent at (703) 603-9924 or balent.jean@epa.gov to discuss your concerns.

Content Disclaimer

This webinar is intended solely to provide information to the public. The views and opinions expressed as part of this webinar do not necessarily state or reflect those of the U.S. Environmental Protection Agency. It is not intended, nor can it be relied upon, to create any rights enforceable by any party in litigation with the United States, or to endorse the use of products or services provided by specific vendors. With respect to this webinar, neither the United States Government nor any of their employees, makes any warranty, express or implied, including the warranties of merchantability and fitness for a particular purpose, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.

Presenters:

B.T. ThomasB.T. Thomas, Jacobs Engineering Group (BT.Thomas@jacobs.com or 404-626-7215)
Robert Thomas, Ph.D., is a project geochemist. He has 22 years of experience and expertise in the generation and treatment of acid rock drainage (ARD) and specializes in Passive Treatment Systems for Mine Impacted Water (MIW). BT has led the design and participated as a subject matter expert on numerous passive treatment design projects since joining Jacobs 10 years ago.


Jim BaysJim Bays, Jacobs Engineering Group (Jim.Bays@jacobs.com or 813-281-7705)
Jim Bays is a Professional Wetland Scientist and a Technology Fellow in Natural Treatment Systems with Jacobs. With more than 40 years of experience, Jim specializes in planning and design of natural treatment systems for water quality improvement. His current focus is on passive treatment of selenium and the use of wetlands for treating membrane concentrate.


Moderators:

Michele MahoneyMichele Mahoney, U.S. EPA Technology Innovation and Field Services Division (mahoney.michele@epa.gov or 703-603-9057)
Michele Mahoney is a Soil Scientist working on issues related to remediation and reuse of contaminated site within EPA's Superfund program. In order to support practitioners, she researches and reports on knowledge related to treatment technologies for mining sites, use of soil amendments for remediation and redevelopment/reuse, ecological revitalization, ecosystem services, phytotechnologies, and urban gardening. Michele develops and delivers training for the world-renown EPA Clean-Up Information Network (www.cluin.org), particularly a Mining Webinar Series, and topics related to Superfund Redevelopment, Ecological Revitalization, Ecosystem Services, and Phytotechnologies. She also creates and manages content development for the EcoTools and Mining pages on CLU-IN.org.

Michele has worked with EPA for 18 years. Prior to her current responsibilities, Michele served the Agency as the lead for food waste composting issues and as an environmental fate and ecological risk assessor for pesticide registration. Michele also has experience as a Contractor for EPA and a Laboratory and Field Researcher.

Michele earned a M.S. in Soil Science from the Washington State University, and a B.S. in Agronomy & Environmental Science from Delaware Valley University.


Jean BalentJean Balent, U.S. EPA Technology Innovation and Field Services Division (balent.jean@epa.gov or 703-603-9924)
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.


Webinar Slides and References:


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If you have a suggested topic or idea for a future CLU-IN internet seminar, please contact:

Jean Balent
Technology Integration and Information Branch

PH: (703) 603-9924 | Email: balent.jean@epa.gov
Michael Adam
Technology Integration and Information Branch

PH: (703) 603-9915 | Email: adam.michael@epa.gov